diff --git a/docs/compiled/artplayer-plugin-asr.js b/docs/compiled/artplayer-plugin-asr.js
index eba061fb8..f218500a2 100644
--- a/docs/compiled/artplayer-plugin-asr.js
+++ b/docs/compiled/artplayer-plugin-asr.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";if("undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return function(t={}){const{length:e=3,interval:n=100,sampleRate:r=16e3,autoHideTimeout:a=1e4,onAudioChunk:o=()=>null}=t;return t=>{let i=!1,l=null,s=null,u=null,c=null,d=[],p=null,f=!1,y=null,m=null,g=null;const h=t.layers.add({name:"asr",html:""});function w(){h.style.display="none"}function b(t){var n;"string"===typeof t&&(clearTimeout(y),y=setTimeout(w,a),h.style.display="",h.innerHTML=(n=t,n.split(/(?<=[\u3001\u3002\uff01\uff1f!?.])\s*/u).map(t=>t.trim()).filter(Boolean).slice(-e)).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))}async function v(){if(!s&&t.video)try{return s=l.createMediaElementSource(t.video),s}catch(e){console.warn("[artplayerPluginAsr] Direct connection failed:",e)}try{if(m||(m=await async function(t){try{return t.captureStream?t.captureStream():t.mozCaptureStream?t.mozCaptureStream():(console.warn("[artplayerPluginAsr] captureStream not supported"),null)}catch(e){return console.warn("[artplayerPluginAsr] Error capturing stream:",e),null}}(t.video)),m)return g=l.createMediaStreamSource(m),g}catch(e){console.warn("[artplayerPluginAsr] MediaStream fallback failed:",e)}return null}async function x(){i&&(i=!1,clearInterval(p),p=null,u&&(u.disconnect(),u.port.onmessage=null,u=null),c&&(c.disconnect(),c=null),d=[])}async function A(){await x(),g&&(g.disconnect(),g=null),s&&(s.disconnect(),s=null),m&&(m.getTracks().forEach(t=>t.stop()),m=null),l&&(await l.close(),l=null),f=!1}return t.on("video:volumechange",()=>{c&&(c.gain.value=t.volume)}),t.on("play",async function(){if(!i)try{await async function(){return l||(l=new(window.AudioContext||window.webkitAudioContext)({sampleRate:r}),"suspended"===l.state&&await l.resume(),l)}();const t=await v();if(!t)throw new Error("Could not establish audio source");if(!f){const t=(()=>{const t=new Blob(["\n            class RecorderProcessor extends AudioWorkletProcessor {\n                process(inputs) {\n                    const input = inputs[0];\n                    if (input && input[0]) {\n                        this.port.postMessage(input[0]);\n                    }\n                    return true;\n                }\n            }\n            registerProcessor('recorder-processor', RecorderProcessor);\n        "],{type:"application/javascript"});return URL.createObjectURL(t)})();await l.audioWorklet.addModule(t),URL.revokeObjectURL(t),f=!0}c=l.createGain(),c.gain.value=1,u=new AudioWorkletNode(l,"recorder-processor"),u.port.onmessage=t=>{d.push(new Float32Array(t.data))},t.connect(u),t.connect(c),c.connect(l.destination);const e=r*(n/1e3);p=setInterval(async()=>{if(0===d.length)return;let t=new Float32Array(0);for(;t.length<e&&d.length;){const e=d.shift(),n=new Float32Array(t.length+e.length);n.set(t,0),n.set(e,t.length),t=n}if(t.length<e)return;const n=function(t){const e=t.length,n=new ArrayBuffer(2*e),r=new DataView(n);for(let a=0;a<e;a++){const e=Math.max(-1,Math.min(1,t[a]));r.setInt16(2*a,e<0?32768*e:32767*e,!0)}return n}(t.slice(0,e)),a=function(t,e){const n=t.byteLength,r=new ArrayBuffer(44+n),a=new DataView(r),o=(t,e)=>{for(let n=0;n<e.length;n++)a.setUint8(t+n,e.charCodeAt(n))};return o(0,"RIFF"),a.setUint32(4,36+n,!0),o(8,"WAVE"),o(12,"fmt "),a.setUint32(16,16,!0),a.setUint16(20,1,!0),a.setUint16(22,1,!0),a.setUint32(24,e,!0),a.setUint32(28,2*e,!0),a.setUint16(32,2,!0),a.setUint16(34,16,!0),o(36,"data"),a.setUint32(40,n,!0),new Uint8Array(r).set(new Uint8Array(t),44),r}(n,r);b(await o({pcm:n,wav:a}))},n),i=!0}catch(t){console.error("[artplayerPluginAsr] Initialization failed:",t),await x()}}),t.on("pause",x),t.on("destroy",A),{name:"artplayerPluginAsr",stop:A,hide:w,append:b}}}});
+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";class t{constructor(t,e){this.video=t,this.sampleRate=e,this.closed=!1,this.direct=!1,this.workletLoaded=!1}assertOpen(){if(this.closed)throw new Error("Audio capture was closed")}revokeWorklet(){void 0!==this.blobUrl&&(URL.revokeObjectURL(this.blobUrl),this.blobUrl=void 0)}async initialize(){this.assertOpen();const t=window,e=window.AudioContext||t.webkitAudioContext;if(!e)throw new Error("AudioContext is not supported");const i=this.context??(this.context=new e({sampleRate:this.sampleRate}));if("suspended"===i.state&&await i.resume(),this.assertOpen(),!this.workletLoaded){this.blobUrl=URL.createObjectURL(new Blob(["\nclass RecorderProcessor extends AudioWorkletProcessor {\n    process(inputs) {\n        const input = inputs[0];\n        if (input && input[0]) {\n            this.port.postMessage(input[0]);\n        }\n        return true;\n    }\n}\nregisterProcessor('recorder-processor', RecorderProcessor);\n"],{type:"application/javascript"}));try{await i.audioWorklet.addModule(this.blobUrl),this.workletLoaded=!0}finally{this.revokeWorklet()}}if(this.assertOpen(),!this.source)try{this.source=i.createMediaElementSource(this.video),this.direct=!0}catch(s){console.warn("[artplayerPluginAsr] Direct connection failed:",s);const t=this.video.captureStream||this.video.mozCaptureStream;if(!t)throw new Error("Could not establish audio source");this.stream=t.call(this.video),this.source=i.createMediaStreamSource(this.stream)}}prepare(){return this.preparation??(this.preparation=this.initialize().catch(t=>{throw this.preparation=void 0,t})),this.preparation}get ownsMediaConnection(){return this.direct}idle(){const t=this.gain;this.disconnect(),this.direct&&this.context&&this.source&&(this.gain=t||this.context.createGain(),t||(this.gain.gain.value=1),this.source.connect(this.gain),this.gain.connect(this.context.destination))}connect(t){this.assertOpen();const e=this.context,i=this.source;if(!e||!i)throw new Error("Audio capture is not prepared");const s=this.gain;this.disconnect();const n=this.gain=s||e.createGain();s||(n.gain.value=1);const r=this.recorder=new AudioWorkletNode(e,"recorder-processor");r.port.onmessage=e=>{this.closed||this.recorder!==r||t(e.data)},i.connect(r),i.connect(n),n.connect(e.destination)}volume(t){this.gain&&(this.gain.gain.value=t)}disconnect(){this.recorder&&(this.recorder.port.onmessage=null,this.recorder.disconnect(),this.recorder=void 0),this.gain?.disconnect(),this.gain=void 0,this.source?.disconnect()}async close(){if(this.closed)return;this.closed=!0,this.disconnect(),this.revokeWorklet(),this.stream?.getTracks().forEach(t=>t.stop()),this.stream=void 0;const t=this.context;this.context=void 0,this.source=void 0,t&&"closed"!==t.state&&await t.close()}}class e{constructor(){this.offset=0,this.size=0}get length(){return this.size}push(t){if(0===t.length)return;const e={samples:new Float32Array(t)};this.tail?this.tail.next=e:this.head=e,this.tail=e,this.size+=t.length}take(t){if(!Number.isSafeInteger(t)||t<=0)throw new RangeError("Sample count must be a positive safe integer");if(t>this.size)return null;const e=new Float32Array(t);let i=0;for(;this.head&&i<t;){const s=this.head.samples,n=Math.min(s.length-this.offset,t-i);e.set(s.subarray(this.offset,this.offset+n),i),i+=n,this.offset+=n,this.offset===s.length&&(this.head=this.head.next,this.offset=0)}return this.head||(this.tail=void 0),this.size-=t,e}clear(){this.head=void 0,this.tail=void 0,this.offset=0,this.size=0}}class i{constructor(t,i,s){this.video=t,this.options=i,this.append=s,this.queue=new e,this.closing=Promise.resolve(),this.running=!1,this.terminal=!1,this.epoch=0}reset(){this.epoch++,this.pending=void 0,this.queue.clear()}pause(){this.reset(),this.running=!1,clearInterval(this.timer),this.timer=void 0,this.starting=void 0,this.graph?.idle()}restart(){const t=this.running||Boolean(this.starting);return this.pause(),this.graph&&!this.graph.ownsMediaConnection?this.stop().then(()=>t?this.start():void 0):t?this.start():Promise.resolve()}start(){if(this.terminal||this.running)return Promise.resolve();if(this.starting)return this.starting;const e=this.epoch,i=()=>!this.terminal&&this.epoch===e,s=(async()=>{if(await this.closing,!i())return;const{sampleRate:e,interval:s}=this.options,n=Math.floor(e*s/1e3);if(!Number.isSafeInteger(n)||n<1||!Number.isFinite(s)||s<=0)throw new Error("Audio chunk length must be positive and finite");const r=this.graph??(this.graph=new t(this.video,e));await r.prepare(),i()?(r.connect(t=>{if(this.running&&this.graph===r)return this.queue.length+t.length>Math.max(60*e,2*n)?(console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit"),void this.pause()):void this.queue.push(t)}),this.running=!0,this.timer=setInterval(()=>this.tick(n),s)):this.running||this.graph!==r||r.idle()})().catch(async t=>{i()&&(console.error("[artplayerPluginAsr] Initialization failed:",t),await this.stop())}).finally(()=>{this.starting===s&&(this.starting=void 0)});return this.starting=s,s}async tick(t){if(!this.running||this.pending)return;const e=this.queue.take(t);if(!e)return;const i=this.epoch,s=this.pending={};try{const t=await this.options.onAudioChunk(function(t,e){const i=new ArrayBuffer(2*t.length),s=new DataView(i);for(let a=0;a<t.length;a++){const e=Math.max(-1,Math.min(1,t[a]));s.setInt16(2*a,e<0?32768*e:32767*e,!0)}const n=new ArrayBuffer(44+i.byteLength),r=new DataView(n);function o(t,e){for(let i=0;i<e.length;i++)r.setUint8(t+i,e.charCodeAt(i))}return o(0,"RIFF"),r.setUint32(4,36+i.byteLength,!0),o(8,"WAVE"),o(12,"fmt "),r.setUint32(16,16,!0),r.setUint16(20,1,!0),r.setUint16(22,1,!0),r.setUint32(24,e,!0),r.setUint32(28,2*e,!0),r.setUint16(32,2,!0),r.setUint16(34,16,!0),o(36,"data"),r.setUint32(40,i.byteLength,!0),new Uint8Array(n).set(new Uint8Array(i),44),{pcm:i,wav:n}}(e,this.options.sampleRate));this.running&&!this.terminal&&this.epoch===i&&this.append(t)}catch(n){this.epoch!==i||this.terminal||console.error("[artplayerPluginAsr] Audio callback failed:",n)}finally{this.pending===s&&(this.pending=void 0)}}volume(t){this.graph?.volume(t)}stop(t=!1){this.terminal||(this.terminal=t),this.pause();const e=this.graph;return!t&&e?.ownsMediaConnection||(this.graph=void 0,this.closing=Promise.all([this.closing,e?.close()]).then(()=>{})),this.closing}}function s(t={}){const{length:e=3,interval:s=100,sampleRate:n=16e3,autoHideTimeout:r=1e4,onAudioChunk:o=()=>null}=t;return t=>{const a=t.layers.add({name:"asr",html:""});if(!a)throw new Error("Could not create ASR subtitle layer");const h=function(t,e,i){let s,n=!1;function r(){clearTimeout(s),s=void 0}function o(){n||(t.style.display="none")}return{append:function(a){n||"string"!==typeof a||(r(),s=setTimeout(o,i),t.style.display="",t.innerHTML=a.split(/(?<=[\u3001\u3002\uff01\uff1f!?.])\s*/u).map(t=>t.trim()).filter(Boolean).slice(-e).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))},hide:o,destroy(){n=!0,r()}}}(a,e,r),c=new i(t.video,{interval:s,sampleRate:n,onAudioChunk:o},h.append),l=()=>c.volume(t.volume),d=()=>c.start(),u=()=>c.pause(),p=()=>c.restart(),g=()=>(h.destroy(),t.off("video:volumechange",l),t.off("play",d),t.off("pause",u),t.off("restart",p),t.off("destroy",g),c.stop(!0));return t.on("video:volumechange",l),t.on("play",d),t.on("pause",u),t.on("restart",p),t.on("destroy",g),{name:"artplayerPluginAsr",stop:()=>c.stop(),hide:h.hide,append:h.append}}}if(Object.defineProperty(s,"default",{value:s}),"undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return s});
diff --git a/docs/compiled/artplayer-plugin-asr.legacy.js b/docs/compiled/artplayer-plugin-asr.legacy.js
index 71d3bc90c..3a00665c7 100644
--- a/docs/compiled/artplayer-plugin-asr.legacy.js
+++ b/docs/compiled/artplayer-plugin-asr.legacy.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";var t=(t,e,n)=>new Promise((r,o)=>{var a=t=>{try{l(n.next(t))}catch(e){o(e)}},i=t=>{try{l(n.throw(t))}catch(e){o(e)}},l=t=>t.done?r(t.value):Promise.resolve(t.value).then(a,i);l((n=n.apply(t,e)).next())});if("undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return function(e={}){const{length:n=3,interval:r=100,sampleRate:o=16e3,autoHideTimeout:a=1e4,onAudioChunk:i=()=>null}=e;return e=>{let l=!1,s=null,u=null,c=null,d=null,p=[],f=null,y=!1,m=null,h=null,g=null;const v=e.layers.add({name:"asr",html:""});function b(){v.style.display="none"}function x(t){var e;"string"===typeof t&&(clearTimeout(m),m=setTimeout(b,a),v.style.display="",v.innerHTML=(e=t,e.split(new RegExp("(?<=[\u3001\u3002\uff01\uff1f!?.])\\s*","u")).map(t=>t.trim()).filter(Boolean).slice(-n)).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))}function w(){return t(this,null,function*(){if(!u&&e.video)try{return u=s.createMediaElementSource(e.video),u}catch(n){console.warn("[artplayerPluginAsr] Direct connection failed:",n)}try{if(h||(h=yield function(e){return t(this,null,function*(){try{return e.captureStream?e.captureStream():e.mozCaptureStream?e.mozCaptureStream():(console.warn("[artplayerPluginAsr] captureStream not supported"),null)}catch(n){return console.warn("[artplayerPluginAsr] Error capturing stream:",n),null}})}(e.video)),h)return g=s.createMediaStreamSource(h),g}catch(n){console.warn("[artplayerPluginAsr] MediaStream fallback failed:",n)}return null})}function A(){return t(this,null,function*(){l&&(l=!1,clearInterval(f),f=null,c&&(c.disconnect(),c.port.onmessage=null,c=null),d&&(d.disconnect(),d=null),p=[])})}function U(){return t(this,null,function*(){yield A(),g&&(g.disconnect(),g=null),u&&(u.disconnect(),u=null),h&&(h.getTracks().forEach(t=>t.stop()),h=null),s&&(yield s.close(),s=null),y=!1})}return e.on("video:volumechange",()=>{d&&(d.gain.value=e.volume)}),e.on("play",function(){return t(this,null,function*(){if(!l)try{yield function(){return t(this,null,function*(){return s||(s=new(window.AudioContext||window.webkitAudioContext)({sampleRate:o}),"suspended"===s.state&&(yield s.resume()),s)})}();const e=yield w();if(!e)throw new Error("Could not establish audio source");if(!y){const t=(()=>{const t=new Blob(["\n            class RecorderProcessor extends AudioWorkletProcessor {\n                process(inputs) {\n                    const input = inputs[0];\n                    if (input && input[0]) {\n                        this.port.postMessage(input[0]);\n                    }\n                    return true;\n                }\n            }\n            registerProcessor('recorder-processor', RecorderProcessor);\n        "],{type:"application/javascript"});return URL.createObjectURL(t)})();yield s.audioWorklet.addModule(t),URL.revokeObjectURL(t),y=!0}d=s.createGain(),d.gain.value=1,c=new AudioWorkletNode(s,"recorder-processor"),c.port.onmessage=t=>{p.push(new Float32Array(t.data))},e.connect(c),e.connect(d),d.connect(s.destination);const n=o*(r/1e3);f=setInterval(()=>t(null,null,function*(){if(0===p.length)return;let t=new Float32Array(0);for(;t.length<n&&p.length;){const e=p.shift(),n=new Float32Array(t.length+e.length);n.set(t,0),n.set(e,t.length),t=n}if(t.length<n)return;const e=function(t){const e=t.length,n=new ArrayBuffer(2*e),r=new DataView(n);for(let o=0;o<e;o++){const e=Math.max(-1,Math.min(1,t[o]));r.setInt16(2*o,e<0?32768*e:32767*e,!0)}return n}(t.slice(0,n)),r=function(t,e){const n=t.byteLength,r=new ArrayBuffer(44+n),o=new DataView(r),a=(t,e)=>{for(let n=0;n<e.length;n++)o.setUint8(t+n,e.charCodeAt(n))};return a(0,"RIFF"),o.setUint32(4,36+n,!0),a(8,"WAVE"),a(12,"fmt "),o.setUint32(16,16,!0),o.setUint16(20,1,!0),o.setUint16(22,1,!0),o.setUint32(24,e,!0),o.setUint32(28,2*e,!0),o.setUint16(32,2,!0),o.setUint16(34,16,!0),a(36,"data"),o.setUint32(40,n,!0),new Uint8Array(r).set(new Uint8Array(t),44),r}(e,o);x(yield i({pcm:e,wav:r}))}),r),l=!0}catch(e){console.error("[artplayerPluginAsr] Initialization failed:",e),yield A()}})}),e.on("pause",A),e.on("destroy",U),{name:"artplayerPluginAsr",stop:U,hide:b,append:x}}}});
+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";var t=(t,e,i)=>new Promise((s,n)=>{var r=t=>{try{a(i.next(t))}catch(e){n(e)}},o=t=>{try{a(i.throw(t))}catch(e){n(e)}},a=t=>t.done?s(t.value):Promise.resolve(t.value).then(r,o);a((i=i.apply(t,e)).next())});class e{constructor(t,e){this.video=t,this.sampleRate=e,this.closed=!1,this.direct=!1,this.workletLoaded=!1}assertOpen(){if(this.closed)throw new Error("Audio capture was closed")}revokeWorklet(){void 0!==this.blobUrl&&(URL.revokeObjectURL(this.blobUrl),this.blobUrl=void 0)}initialize(){return t(this,null,function*(){var t;this.assertOpen();const e=window,i=window.AudioContext||e.webkitAudioContext;if(!i)throw new Error("AudioContext is not supported");const s=null!=(t=this.context)?t:this.context=new i({sampleRate:this.sampleRate});if("suspended"===s.state&&(yield s.resume()),this.assertOpen(),!this.workletLoaded){this.blobUrl=URL.createObjectURL(new Blob(["\nclass RecorderProcessor extends AudioWorkletProcessor {\n    process(inputs) {\n        const input = inputs[0];\n        if (input && input[0]) {\n            this.port.postMessage(input[0]);\n        }\n        return true;\n    }\n}\nregisterProcessor('recorder-processor', RecorderProcessor);\n"],{type:"application/javascript"}));try{yield s.audioWorklet.addModule(this.blobUrl),this.workletLoaded=!0}finally{this.revokeWorklet()}}if(this.assertOpen(),!this.source)try{this.source=s.createMediaElementSource(this.video),this.direct=!0}catch(n){console.warn("[artplayerPluginAsr] Direct connection failed:",n);const t=this.video.captureStream||this.video.mozCaptureStream;if(!t)throw new Error("Could not establish audio source");this.stream=t.call(this.video),this.source=s.createMediaStreamSource(this.stream)}})}prepare(){return null!=this.preparation||(this.preparation=this.initialize().catch(t=>{throw this.preparation=void 0,t})),this.preparation}get ownsMediaConnection(){return this.direct}idle(){const t=this.gain;this.disconnect(),this.direct&&this.context&&this.source&&(this.gain=t||this.context.createGain(),t||(this.gain.gain.value=1),this.source.connect(this.gain),this.gain.connect(this.context.destination))}connect(t){this.assertOpen();const e=this.context,i=this.source;if(!e||!i)throw new Error("Audio capture is not prepared");const s=this.gain;this.disconnect();const n=this.gain=s||e.createGain();s||(n.gain.value=1);const r=this.recorder=new AudioWorkletNode(e,"recorder-processor");r.port.onmessage=e=>{this.closed||this.recorder!==r||t(e.data)},i.connect(r),i.connect(n),n.connect(e.destination)}volume(t){this.gain&&(this.gain.gain.value=t)}disconnect(){var t,e;this.recorder&&(this.recorder.port.onmessage=null,this.recorder.disconnect(),this.recorder=void 0),null==(t=this.gain)||t.disconnect(),this.gain=void 0,null==(e=this.source)||e.disconnect()}close(){return t(this,null,function*(){var t;if(this.closed)return;this.closed=!0,this.disconnect(),this.revokeWorklet(),null==(t=this.stream)||t.getTracks().forEach(t=>t.stop()),this.stream=void 0;const e=this.context;this.context=void 0,this.source=void 0,e&&"closed"!==e.state&&(yield e.close())})}}class i{constructor(){this.offset=0,this.size=0}get length(){return this.size}push(t){if(0===t.length)return;const e={samples:new Float32Array(t)};this.tail?this.tail.next=e:this.head=e,this.tail=e,this.size+=t.length}take(t){if(!Number.isSafeInteger(t)||t<=0)throw new RangeError("Sample count must be a positive safe integer");if(t>this.size)return null;const e=new Float32Array(t);let i=0;for(;this.head&&i<t;){const s=this.head.samples,n=Math.min(s.length-this.offset,t-i);e.set(s.subarray(this.offset,this.offset+n),i),i+=n,this.offset+=n,this.offset===s.length&&(this.head=this.head.next,this.offset=0)}return this.head||(this.tail=void 0),this.size-=t,e}clear(){this.head=void 0,this.tail=void 0,this.offset=0,this.size=0}}class s{constructor(t,e,s){this.video=t,this.options=e,this.append=s,this.queue=new i,this.closing=Promise.resolve(),this.running=!1,this.terminal=!1,this.epoch=0}reset(){this.epoch++,this.pending=void 0,this.queue.clear()}pause(){var t;this.reset(),this.running=!1,clearInterval(this.timer),this.timer=void 0,this.starting=void 0,null==(t=this.graph)||t.idle()}restart(){const t=this.running||Boolean(this.starting);return this.pause(),this.graph&&!this.graph.ownsMediaConnection?this.stop().then(()=>t?this.start():void 0):t?this.start():Promise.resolve()}start(){if(this.terminal||this.running)return Promise.resolve();if(this.starting)return this.starting;const i=this.epoch,s=()=>!this.terminal&&this.epoch===i,n=(()=>t(this,null,function*(){var t;if(yield this.closing,!s())return;const{sampleRate:i,interval:n}=this.options,r=Math.floor(i*n/1e3);if(!Number.isSafeInteger(r)||r<1||!Number.isFinite(n)||n<=0)throw new Error("Audio chunk length must be positive and finite");const o=null!=(t=this.graph)?t:this.graph=new e(this.video,i);yield o.prepare(),s()?(o.connect(t=>{if(this.running&&this.graph===o)return this.queue.length+t.length>Math.max(60*i,2*r)?(console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit"),void this.pause()):void this.queue.push(t)}),this.running=!0,this.timer=setInterval(()=>this.tick(r),n)):this.running||this.graph!==o||o.idle()}))().catch(e=>t(this,null,function*(){s()&&(console.error("[artplayerPluginAsr] Initialization failed:",e),yield this.stop())})).finally(()=>{this.starting===n&&(this.starting=void 0)});return this.starting=n,n}tick(e){return t(this,null,function*(){if(!this.running||this.pending)return;const t=this.queue.take(e);if(!t)return;const i=this.epoch,s=this.pending={};try{const e=yield this.options.onAudioChunk(function(t,e){const i=new ArrayBuffer(2*t.length),s=new DataView(i);for(let a=0;a<t.length;a++){const e=Math.max(-1,Math.min(1,t[a]));s.setInt16(2*a,e<0?32768*e:32767*e,!0)}const n=new ArrayBuffer(44+i.byteLength),r=new DataView(n);function o(t,e){for(let i=0;i<e.length;i++)r.setUint8(t+i,e.charCodeAt(i))}return o(0,"RIFF"),r.setUint32(4,36+i.byteLength,!0),o(8,"WAVE"),o(12,"fmt "),r.setUint32(16,16,!0),r.setUint16(20,1,!0),r.setUint16(22,1,!0),r.setUint32(24,e,!0),r.setUint32(28,2*e,!0),r.setUint16(32,2,!0),r.setUint16(34,16,!0),o(36,"data"),r.setUint32(40,i.byteLength,!0),new Uint8Array(n).set(new Uint8Array(i),44),{pcm:i,wav:n}}(t,this.options.sampleRate));this.running&&!this.terminal&&this.epoch===i&&this.append(e)}catch(n){this.epoch!==i||this.terminal||console.error("[artplayerPluginAsr] Audio callback failed:",n)}finally{this.pending===s&&(this.pending=void 0)}})}volume(t){var e;null==(e=this.graph)||e.volume(t)}stop(t=!1){this.terminal||(this.terminal=t),this.pause();const e=this.graph;return!t&&(null==e?void 0:e.ownsMediaConnection)||(this.graph=void 0,this.closing=Promise.all([this.closing,null==e?void 0:e.close()]).then(()=>{})),this.closing}}function n(t={}){const{length:e=3,interval:i=100,sampleRate:n=16e3,autoHideTimeout:r=1e4,onAudioChunk:o=()=>null}=t;return t=>{const a=t.layers.add({name:"asr",html:""});if(!a)throw new Error("Could not create ASR subtitle layer");const h=function(t,e,i){let s,n=!1;function r(){clearTimeout(s),s=void 0}function o(){n||(t.style.display="none")}return{append:function(a){n||"string"!==typeof a||(r(),s=setTimeout(o,i),t.style.display="",t.innerHTML=a.split(new RegExp("(?<=[\u3001\u3002\uff01\uff1f!?.])\\s*","u")).map(t=>t.trim()).filter(Boolean).slice(-e).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))},hide:o,destroy(){n=!0,r()}}}(a,e,r),l=new s(t.video,{interval:i,sampleRate:n,onAudioChunk:o},h.append),c=()=>l.volume(t.volume),d=()=>l.start(),u=()=>l.pause(),p=()=>l.restart(),f=()=>(h.destroy(),t.off("video:volumechange",c),t.off("play",d),t.off("pause",u),t.off("restart",p),t.off("destroy",f),l.stop(!0));return t.on("video:volumechange",c),t.on("play",d),t.on("pause",u),t.on("restart",p),t.on("destroy",f),{name:"artplayerPluginAsr",stop:()=>l.stop(),hide:h.hide,append:h.append}}}if(Object.defineProperty(n,"default",{value:n}),"undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return n});
diff --git a/docs/compiled/artplayer-plugin-asr.mjs b/docs/compiled/artplayer-plugin-asr.mjs
index 37fc36858..3da312943 100644
--- a/docs/compiled/artplayer-plugin-asr.mjs
+++ b/docs/compiled/artplayer-plugin-asr.mjs
@@ -4,248 +4,394 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-const style = ".art-video-player .art-layer-asr {\n  pointer-events: none !important;\n  position: absolute;\n  z-index: 150;\n  inset: 0px;\n  display: flex;\n  flex-direction: column;\n  justify-content: end;\n  padding: 0 2%;\n  font-size: 1rem;\n  gap: var(--art-subtitle-gap);\n  padding-bottom: var(--art-subtitle-bottom);\n  transition: padding-bottom var(--art-transition-duration) ease;\n  text-shadow: var(--art-subtitle-border) 1px 0 1px, var(--art-subtitle-border) 0 1px 1px, var(--art-subtitle-border) -1px 0 1px, var(--art-subtitle-border) 0 -1px 1px, var(--art-subtitle-border) 1px 1px 1px, var(--art-subtitle-border) -1px -1px 1px, var(--art-subtitle-border) 1px -1px 1px, var(--art-subtitle-border) -1px 1px 1px;\n}\n.art-video-player.art-control-show .art-layer-asr {\n  padding-bottom: calc(var(--art-control-height) + var(--art-subtitle-bottom));\n}\n";
-function artplayerPluginAsr(option = {}) {
-  const {
-    length = 3,
-    interval = 100,
-    sampleRate = 16e3,
-    autoHideTimeout = 1e4,
-    onAudioChunk = () => null
-  } = option;
-  return (art) => {
-    let started = false;
-    let audioCtx = null;
-    let sourceNode = null;
-    let recorderNode = null;
-    let gainNode = null;
-    let bufferChunks = [];
-    let timer = null;
-    let workletLoaded = false;
-    let hideTimer = null;
-    let mediaStream = null;
-    let mediaStreamSource = null;
-    const $asr = art.layers.add({
-      name: "asr",
-      html: ""
-    });
-    function splitByPunctuation(text) {
-      return text.split(/(?<=[、。！？!?.])\s*/u).map((s) => s.trim()).filter(Boolean).slice(-length);
-    }
-    function hide() {
-      $asr.style.display = "none";
-    }
-    function append(subtitle) {
-      if (typeof subtitle !== "string")
-        return;
-      clearTimeout(hideTimer);
-      hideTimer = setTimeout(hide, autoHideTimeout);
-      $asr.style.display = "";
-      $asr.innerHTML = splitByPunctuation(subtitle).map((line) => `<div class="art-asr-line">${line}</div>`).join("");
-    }
-    const recorderProcessorCode = `
-            class RecorderProcessor extends AudioWorkletProcessor {
-                process(inputs) {
-                    const input = inputs[0];
-                    if (input && input[0]) {
-                        this.port.postMessage(input[0]);
-                    }
-                    return true;
-                }
-            }
-            registerProcessor('recorder-processor', RecorderProcessor);
-        `;
-    const createWorkletBlobUrl = () => {
-      const blob = new Blob([recorderProcessorCode], { type: "application/javascript" });
-      return URL.createObjectURL(blob);
-    };
-    function floatTo16BitPCM(float32Array) {
-      const len = float32Array.length;
-      const buffer = new ArrayBuffer(len * 2);
-      const view = new DataView(buffer);
-      for (let i = 0; i < len; i++) {
-        const s = Math.max(-1, Math.min(1, float32Array[i]));
-        view.setInt16(i * 2, s < 0 ? s * 32768 : s * 32767, true);
-      }
-      return buffer;
-    }
-    function pcmToWav(pcmBuffer, sampleRate2) {
-      const pcmLength = pcmBuffer.byteLength;
-      const wavBuffer = new ArrayBuffer(44 + pcmLength);
-      const view = new DataView(wavBuffer);
-      const writeString = (offset, str) => {
-        for (let i = 0; i < str.length; i++) {
-          view.setUint8(offset + i, str.charCodeAt(i));
+const recorderProcessorCode = `
+class RecorderProcessor extends AudioWorkletProcessor {
+    process(inputs) {
+        const input = inputs[0];
+        if (input && input[0]) {
+            this.port.postMessage(input[0]);
         }
-      };
-      writeString(0, "RIFF");
-      view.setUint32(4, 36 + pcmLength, true);
-      writeString(8, "WAVE");
-      writeString(12, "fmt ");
-      view.setUint32(16, 16, true);
-      view.setUint16(20, 1, true);
-      view.setUint16(22, 1, true);
-      view.setUint32(24, sampleRate2, true);
-      view.setUint32(28, sampleRate2 * 2, true);
-      view.setUint16(32, 2, true);
-      view.setUint16(34, 16, true);
-      writeString(36, "data");
-      view.setUint32(40, pcmLength, true);
-      new Uint8Array(wavBuffer).set(new Uint8Array(pcmBuffer), 44);
-      return wavBuffer;
+        return true;
     }
-    async function setupAudioContext() {
-      if (audioCtx)
-        return audioCtx;
-      audioCtx = new (window.AudioContext || window.webkitAudioContext)({ sampleRate });
-      if (audioCtx.state === "suspended")
-        await audioCtx.resume();
-      return audioCtx;
+}
+registerProcessor('recorder-processor', RecorderProcessor);
+`;
+class AudioGraph {
+  constructor(video, sampleRate) {
+    this.video = video;
+    this.sampleRate = sampleRate;
+    this.closed = false;
+    this.direct = false;
+    this.workletLoaded = false;
+  }
+  assertOpen() {
+    if (this.closed)
+      throw new Error("Audio capture was closed");
+  }
+  revokeWorklet() {
+    if (this.blobUrl !== void 0) {
+      URL.revokeObjectURL(this.blobUrl);
+      this.blobUrl = void 0;
     }
-    async function setupAudioSource() {
-      if (!sourceNode && art.video) {
-        try {
-          sourceNode = audioCtx.createMediaElementSource(art.video);
-          return sourceNode;
-        } catch (err) {
-          console.warn("[artplayerPluginAsr] Direct connection failed:", err);
-        }
-      }
+  }
+  async initialize() {
+    this.assertOpen();
+    const platform = window;
+    const Context = window.AudioContext || platform.webkitAudioContext;
+    if (!Context)
+      throw new Error("AudioContext is not supported");
+    const context = this.context ?? (this.context = new Context({ sampleRate: this.sampleRate }));
+    if (context.state === "suspended")
+      await context.resume();
+    this.assertOpen();
+    if (!this.workletLoaded) {
+      this.blobUrl = URL.createObjectURL(new Blob([recorderProcessorCode], { type: "application/javascript" }));
       try {
-        if (!mediaStream) {
-          mediaStream = await captureAudioFromVideo(art.video);
-        }
-        if (mediaStream) {
-          mediaStreamSource = audioCtx.createMediaStreamSource(mediaStream);
-          return mediaStreamSource;
-        }
-      } catch (err) {
-        console.warn("[artplayerPluginAsr] MediaStream fallback failed:", err);
-      }
-      return null;
-    }
-    async function captureAudioFromVideo(videoElement) {
-      try {
-        if (videoElement.captureStream)
-          return videoElement.captureStream();
-        if (videoElement.mozCaptureStream)
-          return videoElement.mozCaptureStream();
-        console.warn("[artplayerPluginAsr] captureStream not supported");
-        return null;
-      } catch (err) {
-        console.warn("[artplayerPluginAsr] Error capturing stream:", err);
-        return null;
+        await context.audioWorklet.addModule(this.blobUrl);
+        this.workletLoaded = true;
+      } finally {
+        this.revokeWorklet();
       }
     }
-    async function startCapture() {
-      if (started)
-        return;
+    this.assertOpen();
+    if (!this.source) {
       try {
-        await setupAudioContext();
-        const audioSource = await setupAudioSource();
-        if (!audioSource)
+        this.source = context.createMediaElementSource(this.video);
+        this.direct = true;
+      } catch (error) {
+        console.warn("[artplayerPluginAsr] Direct connection failed:", error);
+        const capture = this.video.captureStream || this.video.mozCaptureStream;
+        if (!capture)
           throw new Error("Could not establish audio source");
-        if (!workletLoaded) {
-          const blobUrl = createWorkletBlobUrl();
-          await audioCtx.audioWorklet.addModule(blobUrl);
-          URL.revokeObjectURL(blobUrl);
-          workletLoaded = true;
-        }
-        gainNode = audioCtx.createGain();
-        gainNode.gain.value = 1;
-        recorderNode = new AudioWorkletNode(audioCtx, "recorder-processor");
-        recorderNode.port.onmessage = (event) => {
-          bufferChunks.push(new Float32Array(event.data));
-        };
-        audioSource.connect(recorderNode);
-        audioSource.connect(gainNode);
-        gainNode.connect(audioCtx.destination);
-        const CHUNK_SAMPLES = sampleRate * (interval / 1e3);
-        timer = setInterval(async () => {
-          if (bufferChunks.length === 0)
-            return;
-          let accumulated = new Float32Array(0);
-          while (accumulated.length < CHUNK_SAMPLES && bufferChunks.length) {
-            const next = bufferChunks.shift();
-            const tmp = new Float32Array(accumulated.length + next.length);
-            tmp.set(accumulated, 0);
-            tmp.set(next, accumulated.length);
-            accumulated = tmp;
-          }
-          if (accumulated.length < CHUNK_SAMPLES)
-            return;
-          const chunkToSend = accumulated.slice(0, CHUNK_SAMPLES);
-          const pcm = floatTo16BitPCM(chunkToSend);
-          const wav = pcmToWav(pcm, sampleRate);
-          const subtitle = await onAudioChunk({ pcm, wav });
-          append(subtitle);
-        }, interval);
-        started = true;
-      } catch (err) {
-        console.error("[artplayerPluginAsr] Initialization failed:", err);
-        await stopCapture();
+        this.stream = capture.call(this.video);
+        this.source = context.createMediaStreamSource(this.stream);
       }
     }
-    async function stopCapture() {
-      if (!started)
-        return;
-      started = false;
-      clearInterval(timer);
-      timer = null;
-      if (recorderNode) {
-        recorderNode.disconnect();
-        recorderNode.port.onmessage = null;
-        recorderNode = null;
-      }
-      if (gainNode) {
-        gainNode.disconnect();
-        gainNode = null;
-      }
-      bufferChunks = [];
+  }
+  prepare() {
+    this.preparation ?? (this.preparation = this.initialize().catch((error) => {
+      this.preparation = void 0;
+      throw error;
+    }));
+    return this.preparation;
+  }
+  get ownsMediaConnection() {
+    return this.direct;
+  }
+  idle() {
+    const gain = this.gain;
+    this.disconnect();
+    if (this.direct && this.context && this.source) {
+      this.gain = gain || this.context.createGain();
+      if (!gain)
+        this.gain.gain.value = 1;
+      this.source.connect(this.gain);
+      this.gain.connect(this.context.destination);
     }
-    async function destroy() {
-      await stopCapture();
-      if (mediaStreamSource) {
-        mediaStreamSource.disconnect();
-        mediaStreamSource = null;
-      }
-      if (sourceNode) {
-        sourceNode.disconnect();
-        sourceNode = null;
-      }
-      if (mediaStream) {
-        mediaStream.getTracks().forEach((track) => track.stop());
-        mediaStream = null;
-      }
-      if (audioCtx) {
-        await audioCtx.close();
-        audioCtx = null;
-      }
-      workletLoaded = false;
-    }
-    art.on("video:volumechange", () => {
-      if (gainNode) {
-        gainNode.gain.value = art.volume;
-      }
-    });
-    art.on("play", startCapture);
-    art.on("pause", stopCapture);
-    art.on("destroy", destroy);
-    return {
-      name: "artplayerPluginAsr",
-      stop: destroy,
-      hide,
-      append
+  }
+  connect(receive) {
+    this.assertOpen();
+    const context = this.context;
+    const source = this.source;
+    if (!context || !source)
+      throw new Error("Audio capture is not prepared");
+    const previousGain = this.gain;
+    this.disconnect();
+    const gain = this.gain = previousGain || context.createGain();
+    if (!previousGain)
+      gain.gain.value = 1;
+    const recorder = this.recorder = new AudioWorkletNode(context, "recorder-processor");
+    recorder.port.onmessage = (event) => {
+      if (!this.closed && this.recorder === recorder)
+        receive(event.data);
     };
+    source.connect(recorder);
+    source.connect(gain);
+    gain.connect(context.destination);
+  }
+  volume(value) {
+    if (this.gain)
+      this.gain.gain.value = value;
+  }
+  disconnect() {
+    if (this.recorder) {
+      this.recorder.port.onmessage = null;
+      this.recorder.disconnect();
+      this.recorder = void 0;
+    }
+    this.gain?.disconnect();
+    this.gain = void 0;
+    this.source?.disconnect();
+  }
+  async close() {
+    if (this.closed)
+      return;
+    this.closed = true;
+    this.disconnect();
+    this.revokeWorklet();
+    this.stream?.getTracks().forEach((track) => track.stop());
+    this.stream = void 0;
+    const context = this.context;
+    this.context = void 0;
+    this.source = void 0;
+    if (context && context.state !== "closed")
+      await context.close();
+  }
+}
+function encodeAudio(samples, sampleRate) {
+  const pcm = new ArrayBuffer(samples.length * 2);
+  const pcmView = new DataView(pcm);
+  for (let index = 0; index < samples.length; index++) {
+    const value = Math.max(-1, Math.min(1, samples[index]));
+    pcmView.setInt16(index * 2, value < 0 ? value * 32768 : value * 32767, true);
+  }
+  const wav = new ArrayBuffer(44 + pcm.byteLength);
+  const header = new DataView(wav);
+  function writeString(offset, value) {
+    for (let index = 0; index < value.length; index++)
+      header.setUint8(offset + index, value.charCodeAt(index));
+  }
+  writeString(0, "RIFF");
+  header.setUint32(4, 36 + pcm.byteLength, true);
+  writeString(8, "WAVE");
+  writeString(12, "fmt ");
+  header.setUint32(16, 16, true);
+  header.setUint16(20, 1, true);
+  header.setUint16(22, 1, true);
+  header.setUint32(24, sampleRate, true);
+  header.setUint32(28, sampleRate * 2, true);
+  header.setUint16(32, 2, true);
+  header.setUint16(34, 16, true);
+  writeString(36, "data");
+  header.setUint32(40, pcm.byteLength, true);
+  new Uint8Array(wav).set(new Uint8Array(pcm), 44);
+  return { pcm, wav };
+}
+class SampleQueue {
+  constructor() {
+    this.offset = 0;
+    this.size = 0;
+  }
+  get length() {
+    return this.size;
+  }
+  push(input) {
+    if (input.length === 0)
+      return;
+    const block = { samples: new Float32Array(input) };
+    if (this.tail)
+      this.tail.next = block;
+    else
+      this.head = block;
+    this.tail = block;
+    this.size += input.length;
+  }
+  take(count) {
+    if (!Number.isSafeInteger(count) || count <= 0)
+      throw new RangeError("Sample count must be a positive safe integer");
+    if (count > this.size)
+      return null;
+    const output = new Float32Array(count);
+    let written = 0;
+    while (this.head && written < count) {
+      const samples = this.head.samples;
+      const amount = Math.min(samples.length - this.offset, count - written);
+      output.set(samples.subarray(this.offset, this.offset + amount), written);
+      written += amount;
+      this.offset += amount;
+      if (this.offset === samples.length) {
+        this.head = this.head.next;
+        this.offset = 0;
+      }
+    }
+    if (!this.head)
+      this.tail = void 0;
+    this.size -= count;
+    return output;
+  }
+  clear() {
+    this.head = void 0;
+    this.tail = void 0;
+    this.offset = 0;
+    this.size = 0;
+  }
+}
+class Capture {
+  constructor(video, options, append) {
+    this.video = video;
+    this.options = options;
+    this.append = append;
+    this.queue = new SampleQueue();
+    this.closing = Promise.resolve();
+    this.running = false;
+    this.terminal = false;
+    this.epoch = 0;
+  }
+  reset() {
+    this.epoch++;
+    this.pending = void 0;
+    this.queue.clear();
+  }
+  pause() {
+    this.reset();
+    this.running = false;
+    clearInterval(this.timer);
+    this.timer = void 0;
+    this.starting = void 0;
+    this.graph?.idle();
+  }
+  restart() {
+    const active = this.running || Boolean(this.starting);
+    this.pause();
+    if (this.graph && !this.graph.ownsMediaConnection)
+      return this.stop().then(() => active ? this.start() : void 0);
+    return active ? this.start() : Promise.resolve();
+  }
+  start() {
+    if (this.terminal || this.running)
+      return Promise.resolve();
+    if (this.starting)
+      return this.starting;
+    const epoch = this.epoch;
+    const current = () => !this.terminal && this.epoch === epoch;
+    const operation = (async () => {
+      await this.closing;
+      if (!current())
+        return;
+      const { sampleRate, interval } = this.options;
+      const count = Math.floor(sampleRate * interval / 1e3);
+      if (!Number.isSafeInteger(count) || count < 1 || !Number.isFinite(interval) || interval <= 0)
+        throw new Error("Audio chunk length must be positive and finite");
+      const graph = this.graph ?? (this.graph = new AudioGraph(this.video, sampleRate));
+      await graph.prepare();
+      if (!current()) {
+        if (!this.running && this.graph === graph)
+          graph.idle();
+        return;
+      }
+      graph.connect((samples) => {
+        if (!this.running || this.graph !== graph)
+          return;
+        if (this.queue.length + samples.length > Math.max(sampleRate * 60, count * 2)) {
+          console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit");
+          this.pause();
+          return;
+        }
+        this.queue.push(samples);
+      });
+      this.running = true;
+      this.timer = setInterval(() => this.tick(count), interval);
+    })().catch(async (error) => {
+      if (current()) {
+        console.error("[artplayerPluginAsr] Initialization failed:", error);
+        await this.stop();
+      }
+    }).finally(() => {
+      if (this.starting === operation)
+        this.starting = void 0;
+    });
+    this.starting = operation;
+    return operation;
+  }
+  async tick(count) {
+    if (!this.running || this.pending)
+      return;
+    const samples = this.queue.take(count);
+    if (!samples)
+      return;
+    const epoch = this.epoch;
+    const pending = this.pending = {};
+    try {
+      const text = await this.options.onAudioChunk(encodeAudio(samples, this.options.sampleRate));
+      if (this.running && !this.terminal && this.epoch === epoch)
+        this.append(text);
+    } catch (error) {
+      if (this.epoch === epoch && !this.terminal)
+        console.error("[artplayerPluginAsr] Audio callback failed:", error);
+    } finally {
+      if (this.pending === pending)
+        this.pending = void 0;
+    }
+  }
+  volume(value) {
+    this.graph?.volume(value);
+  }
+  stop(terminal = false) {
+    this.terminal || (this.terminal = terminal);
+    this.pause();
+    const graph = this.graph;
+    if (terminal || !graph?.ownsMediaConnection) {
+      this.graph = void 0;
+      this.closing = Promise.all([this.closing, graph?.close()]).then(() => void 0);
+    }
+    return this.closing;
+  }
+}
+const style = ".art-video-player .art-layer-asr {\n  pointer-events: none !important;\n  position: absolute;\n  z-index: 150;\n  inset: 0px;\n  display: flex;\n  flex-direction: column;\n  justify-content: end;\n  padding: 0 2%;\n  font-size: 1rem;\n  gap: var(--art-subtitle-gap);\n  padding-bottom: var(--art-subtitle-bottom);\n  transition: padding-bottom var(--art-transition-duration) ease;\n  text-shadow: var(--art-subtitle-border) 1px 0 1px, var(--art-subtitle-border) 0 1px 1px, var(--art-subtitle-border) -1px 0 1px, var(--art-subtitle-border) 0 -1px 1px, var(--art-subtitle-border) 1px 1px 1px, var(--art-subtitle-border) -1px -1px 1px, var(--art-subtitle-border) 1px -1px 1px, var(--art-subtitle-border) -1px 1px 1px;\n}\n.art-video-player.art-control-show .art-layer-asr {\n  padding-bottom: calc(var(--art-control-height) + var(--art-subtitle-bottom));\n}\n";
+function createSubtitles(layer, length, autoHideTimeout) {
+  let timer;
+  let destroyed = false;
+  function cancelTimer() {
+    clearTimeout(timer);
+    timer = void 0;
+  }
+  function hide() {
+    if (!destroyed)
+      layer.style.display = "none";
+  }
+  function append(subtitle) {
+    if (destroyed || typeof subtitle !== "string")
+      return;
+    cancelTimer();
+    timer = setTimeout(hide, autoHideTimeout);
+    layer.style.display = "";
+    layer.innerHTML = subtitle.split(/(?<=[、。！？!?.])\s*/u).map((line) => line.trim()).filter(Boolean).slice(-length).map((line) => `<div class="art-asr-line">${line}</div>`).join("");
+  }
+  return {
+    append,
+    hide,
+    destroy() {
+      destroyed = true;
+      cancelTimer();
+    }
   };
 }
-if (typeof document !== "undefined") {
-  if (!document.getElementById("artplayer-plugin-asr")) {
-    const $style = document.createElement("style");
-    $style.id = "artplayer-plugin-asr";
-    $style.textContent = style;
-    document.head.appendChild($style);
-  }
+function artplayerPluginAsr(option = {}) {
+  const { length = 3, interval = 100, sampleRate = 16e3, autoHideTimeout = 1e4, onAudioChunk = () => null } = option;
+  return (art) => {
+    const layer = art.layers.add({ name: "asr", html: "" });
+    if (!layer)
+      throw new Error("Could not create ASR subtitle layer");
+    const subtitles = createSubtitles(layer, length, autoHideTimeout);
+    const capture = new Capture(art.video, { interval, sampleRate, onAudioChunk }, subtitles.append);
+    const volume = () => capture.volume(art.volume);
+    const play = () => capture.start();
+    const pause = () => capture.pause();
+    const restart = () => capture.restart();
+    const stop = () => capture.stop();
+    const destroy = () => {
+      subtitles.destroy();
+      art.off("video:volumechange", volume);
+      art.off("play", play);
+      art.off("pause", pause);
+      art.off("restart", restart);
+      art.off("destroy", destroy);
+      return capture.stop(true);
+    };
+    art.on("video:volumechange", volume);
+    art.on("play", play);
+    art.on("pause", pause);
+    art.on("restart", restart);
+    art.on("destroy", destroy);
+    return { name: "artplayerPluginAsr", stop, hide: subtitles.hide, append: subtitles.append };
+  };
+}
+Object.defineProperty(artplayerPluginAsr, "default", { value: artplayerPluginAsr });
+if (typeof document !== "undefined" && !document.getElementById("artplayer-plugin-asr")) {
+  const styleElement = document.createElement("style");
+  styleElement.id = "artplayer-plugin-asr";
+  styleElement.textContent = style;
+  document.head.appendChild(styleElement);
 }
 export {
   artplayerPluginAsr as default
diff --git a/package.json b/package.json
index 570e5936b..c9bb0a383 100644
--- a/package.json
+++ b/package.json
@@ -49,9 +49,9 @@
     "test:baseline": "node --test refactor/scripts/*.test.mjs",
     "ci:check": "yarn check:toolchain --strict && yarn check:commits --report && yarn check:impact --report && yarn check:ci && yarn test:contracts && yarn check:contracts --report && yarn check:plan && yarn lint && yarn check:types && yarn typecheck && yarn test",
     "ci:build": "yarn build:types && yarn build all && yarn build:i18n && yarn build:ts && yarn build:docs && yarn test:imports",
-    "test:imports": "node --test test/esm.test.js test/i18n.test.js test/ssr.test.js",
+    "test:imports": "node --test test/esm.test.js test/i18n.test.js test/ssr.test.js test/asr-distribution.test.js",
     "typecheck": "node scripts/typecheck.mjs",
-    "test:unit": "node --test test/asr-audio.test.js test/asr.test.js test/jassub.test.js test/multiple-subtitles-merge.test.js test/multiple-subtitles-lifecycle.test.js test/multiple-subtitles-failures.test.js test/multiple-subtitles.test.js test/multiple-subtitles-vendor.test.js test/vtt-thumbnail-parser.test.js test/vtt-thumbnail-lifecycle.test.js test/vtt-thumbnail.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail.test.js test/thumbnail-emitter.test.js test/thumbnail-runtime.test.js test/thumbnail-vendor.test.js test/thumbnail-lifecycle.test.js test/thumbnail-input.test.js test/thumbnail.test.js test/iframe-navigation.test.js test/iframe-boundaries.test.js test/iframe-lifecycle.test.js test/iframe.test.js test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js",
+    "test:unit": "node --test test/asr-encoding.test.js test/asr-lifecycle.test.js test/asr-audio.test.js test/asr.test.js test/jassub.test.js test/multiple-subtitles-merge.test.js test/multiple-subtitles-lifecycle.test.js test/multiple-subtitles-failures.test.js test/multiple-subtitles.test.js test/multiple-subtitles-vendor.test.js test/vtt-thumbnail-parser.test.js test/vtt-thumbnail-lifecycle.test.js test/vtt-thumbnail.test.js test/auto-thumbnail-frames.test.js test/auto-thumbnail-lifecycle.test.js test/auto-thumbnail.test.js test/thumbnail-emitter.test.js test/thumbnail-runtime.test.js test/thumbnail-vendor.test.js test/thumbnail-lifecycle.test.js test/thumbnail-input.test.js test/thumbnail.test.js test/iframe-navigation.test.js test/iframe-boundaries.test.js test/iframe-lifecycle.test.js test/iframe.test.js test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-coordination.test.js test/mediabunny-video.test.js test/mediabunny-audio.test.js test/mediabunny-hls.test.js test/mediabunny-entry.test.js test/mediabunny-capability.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js",
     "test:coverage": "node --test test/coverage.test.js && node scripts/coverage.mjs",
     "test": "yarn test:node && yarn test:baseline",
     "test:browser": "playwright test",
@@ -94,7 +94,7 @@
     "check:ci": "node refactor/scripts/ci-workflow.mjs",
     "test:ci": "node --test test/ci-summary.test.js refactor/scripts/ci-workflow.test.mjs refactor/scripts/impact.test.mjs test/package-runtime.test.js",
     "test:package:runtime": "node scripts/package-runtime.mjs --canonical",
-    "test:asr": "node --test test/asr.test.js test/asr-audio.test.js"
+    "test:asr": "node --test test/asr.test.js test/asr-audio.test.js test/asr-encoding.test.js test/asr-lifecycle.test.js test/asr-distribution.test.js"
   },
   "browserslist": "last 1 Chrome version",
   "devDependencies": {
diff --git a/packages/artplayer-plugin-asr/ARCHITECTURE.md b/packages/artplayer-plugin-asr/ARCHITECTURE.md
index 86696a00f..411f19eec 100644
--- a/packages/artplayer-plugin-asr/ARCHITECTURE.md
+++ b/packages/artplayer-plugin-asr/ARCHITECTURE.md
@@ -1,33 +1,86 @@
 # ASR maintenance
 
-The current implementation is still in `src/index.js`. TypeScript migration and
-resource ownership changes are tracked in the repository refactor plan as
-PKG-ASR-02 through PKG-ASR-06. Do not interpret the baseline tests as completion.
+The player captures first-channel audio and hands PCM/WAV to a caller-provided
+recognizer. There is no network request, microphone permission or embedded model.
 
-- The default factory snapshots options. Registration creates the `asr` layer
-  and subscribes to player play, pause, volumechange and destroy events.
-- Play creates an AudioContext and tries a media element source, then a captured
-  MediaStream source. An inline Blob contains the `recorder-processor` Worklet.
-- Worklet messages supply first-channel Float32 samples. The interval callback
-  encodes little-endian mono PCM16 and a 44-byte-header WAV and invokes the
-  caller's `onAudioChunk({ pcm, wav })`. A returned string replaces subtitles.
-- `append` splits punctuation and sets HTML in `div.art-asr-line`; `hide` changes
-  display only. `src/style.less` owns layout and existing player CSS variables.
-- `stop()` is actually asynchronous and releases audio resources, but retains
-  playback subscriptions. It is not a permanent disable API. There is no public
-  `start()` method. Public declarations currently describe stop as returning void.
+| File | Responsibility |
+| --- | --- |
+| src/index.ts | Snapshot options, register player events, return the compatible facade and install the stylesheet |
+| src/types.ts | Internal options, result and browser capability types; public declarations remain in types/ |
+| src/subtitles.ts | Punctuation/HTML rendering and the owned auto-hide timer |
+| src/capture.ts | Initialization deduplication, active generation, FIFO consumption and one pending recognizer call |
+| src/audio-graph.ts | AudioContext, element/stream source, Worklet loading, playback routing and recorder ownership |
+| src/sample-queue.ts | Copied sample blocks with a linked queue and head offset; preserves partial blocks and tails |
+| src/encoding.ts | Pure PCM16LE/WAV encoding, including historical clamping and the 44-byte mono WAV header |
+| src/worklet.ts | Inline processor code; first-channel messages and the existing recorder-processor registration name |
+| src/style.less | Existing art-layer-asr layout, art-asr-line content and player CSS variables |
 
-This package does not implement recognition or open an ASR network connection.
-The demo service and its WebSocket belong to the caller. Do not run that service
-to validate audio capture; use local media and a local callback.
+Dependencies flow from the facade into subtitles/capture, then from capture into
+the graph, queue and pure encoder. Audio modules do not receive the whole player.
+The Worklet is loaded from a temporary Blob before binding the media element, so
+a failed module load can close its context without taking over video playback.
 
-The initial implementation has suspected chunk loss, partial initialization
-cleanup and stale callback issues. Preserve the frozen historical tests while
-adding candidate regression tests when fixing these. Keep callback/stop typing
-compatible with historical assignments, and preserve public entrypoints, HTML
-rendering behavior, layer names and stylesheet identity.
+## States and ownership
 
-From the repository root, `yarn test:asr` verifies historical public behavior;
-`yarn test:baseline` includes archive provenance. `yarn dev artplayer-plugin-asr`
-and `yarn build artplayer-plugin-asr` use repository build tools. Real browser
-audio and lifecycle validation remains a separate required migration step.
+Play shares one pending initialization. Successful setup attaches one recorder
+and starts one interval. Each tick takes exactly one complete block; an incomplete
+block stays queued. Only one callback is pending within the active generation.
+Rejections are logged and later ticks continue. Pause, source restart, stop and
+destroy invalidate old recognizer completions and discard obsolete queued audio.
+Each recorder also checks its own identity, rejecting messages from retired ports.
+
+Pause detaches the recorder and cancels the interval. The direct media source
+continues through its playback gain to the destination. A source switch reuses the
+direct source and replaces the recorder; a captured-stream fallback is closed and
+reacquired because captured tracks can end on source changes.
+
+`stop()` returns `Promise<void>` and releases ASR work. An already displayed
+subtitle retains its original auto-hide deadline; obsolete callbacks cannot add timers.
+It retains playback subscriptions and allows explicit append or a later play.
+For a directly bound video, the player keeps its original source/context and audio
+route until `art.destroy()`. Closing that context at every stop caused Chromium
+to lose audio on restart; a media element cannot simply bind a replacement source.
+For a captured fallback, stop closes its disposable context and stops its tracks.
+Before direct binding, failed/cancelled initialization closes its context and
+revokes the Worklet URL. Destroy closes all contexts, disconnects nodes, stops
+captured tracks, cancels subtitle timers and removes subscriptions.
+
+This lifetime follows the [Web Audio close semantics](https://www.w3.org/TR/webaudio-1.0/#dom-audiocontext-close)
+and [media-element source behavior](https://www.w3.org/TR/webaudio-1.0/#MediaElementAudioSourceNode).
+Captured-stream source changes follow [Media Capture from DOM Elements](https://www.w3.org/TR/mediacapture-fromelement/#html-media-element-media-capture-extensions).
+
+Queued audio is limited to the larger of 60 seconds or two configured chunks. A caller that
+cannot keep up gets an explicit console error and capture pauses, leaving normal
+playback routed. This avoids an unbounded backlog; it does not claim lossless
+recognition under overload. A later play can restart capture. The caller owns
+cancellation of its own network requests; obsolete completions cannot repaint.
+
+## Compatibility and verification
+
+The factory still snapshots options and registers synchronously, returning
+`name`, `stop`, `hide`, `append`. There is no public start method. Append preserves
+HTML, punctuation splitting, replacement, ignored non-string values and the
+historical `length=0` behavior. The CJS function has a non-enumerable self `default`
+alias for consumers of the 2.0 namespace, while preserving the callable 2.1 form.
+
+Root public declarations have not yet migrated: they describe stop as void and
+the callback as void/Promise<void>. PKG-ASR-04 owns exact asynchronous public types,
+old assignment consumers, module forms and installed tarball acceptance. Internal
+strict TypeScript does not prove that public type migration complete.
+
+From the repository root:
+
+- `yarn test:asr`: frozen public/audio observations, queue/encoding parity and
+  candidate lifecycle regressions. Historical defects remain separate tests.
+- `yarn test:browser test/browser/asr-audio.spec.js`: local AAC, actual Worklet,
+  published/current core, pause/resume, source switch, stop/restart and destroy.
+  Set `ARTPLAYER_ASR_ARTIFACT` to an actual main/legacy file to test that artifact.
+- `yarn typecheck`: includes the package strict/noUncheckedIndexedAccess project.
+- `yarn dev artplayer-plugin-asr` and `yarn build artplayer-plugin-asr`: normal
+  repository development and three-format production builds.
+
+Windows Playwright WebKit 26.6 lacks AudioContext and AudioWorkletNode. Its native
+ASR cases remain explicit skips and do not establish Safari/device compatibility.
+Real fallback track replacement, native volume/mute, CORS, unsupported media and
+physical devices remain PKG-ASR-05 acceptance work. Do not use the demo's external
+recognizer service as a prerequisite for local audio verification.
diff --git a/packages/artplayer-plugin-asr/README.md b/packages/artplayer-plugin-asr/README.md
index 545056cf2..e1c4ae10b 100644
--- a/packages/artplayer-plugin-asr/README.md
+++ b/packages/artplayer-plugin-asr/README.md
@@ -3,6 +3,11 @@
 Audio capture and subtitle display plugin for ArtPlayer. Supplies PCM/WAV chunks
 to a caller-provided recognition service.
 
+`stop()` stops recognition and returns a Promise. It permits later playback to
+restart capture; the player's direct Web Audio connection remains alive until
+the player is destroyed so that stopping recognition does not silence playback.
+Call `art.destroy()` when disposing the player.
+
 ## Maintenance
 
 See [ARCHITECTURE.md](ARCHITECTURE.md) for the current audio flow, public behavior,
diff --git a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.js b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.js
index eba061fb8..f218500a2 100644
--- a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.js
+++ b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";if("undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return function(t={}){const{length:e=3,interval:n=100,sampleRate:r=16e3,autoHideTimeout:a=1e4,onAudioChunk:o=()=>null}=t;return t=>{let i=!1,l=null,s=null,u=null,c=null,d=[],p=null,f=!1,y=null,m=null,g=null;const h=t.layers.add({name:"asr",html:""});function w(){h.style.display="none"}function b(t){var n;"string"===typeof t&&(clearTimeout(y),y=setTimeout(w,a),h.style.display="",h.innerHTML=(n=t,n.split(/(?<=[\u3001\u3002\uff01\uff1f!?.])\s*/u).map(t=>t.trim()).filter(Boolean).slice(-e)).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))}async function v(){if(!s&&t.video)try{return s=l.createMediaElementSource(t.video),s}catch(e){console.warn("[artplayerPluginAsr] Direct connection failed:",e)}try{if(m||(m=await async function(t){try{return t.captureStream?t.captureStream():t.mozCaptureStream?t.mozCaptureStream():(console.warn("[artplayerPluginAsr] captureStream not supported"),null)}catch(e){return console.warn("[artplayerPluginAsr] Error capturing stream:",e),null}}(t.video)),m)return g=l.createMediaStreamSource(m),g}catch(e){console.warn("[artplayerPluginAsr] MediaStream fallback failed:",e)}return null}async function x(){i&&(i=!1,clearInterval(p),p=null,u&&(u.disconnect(),u.port.onmessage=null,u=null),c&&(c.disconnect(),c=null),d=[])}async function A(){await x(),g&&(g.disconnect(),g=null),s&&(s.disconnect(),s=null),m&&(m.getTracks().forEach(t=>t.stop()),m=null),l&&(await l.close(),l=null),f=!1}return t.on("video:volumechange",()=>{c&&(c.gain.value=t.volume)}),t.on("play",async function(){if(!i)try{await async function(){return l||(l=new(window.AudioContext||window.webkitAudioContext)({sampleRate:r}),"suspended"===l.state&&await l.resume(),l)}();const t=await v();if(!t)throw new Error("Could not establish audio source");if(!f){const t=(()=>{const t=new Blob(["\n            class RecorderProcessor extends AudioWorkletProcessor {\n                process(inputs) {\n                    const input = inputs[0];\n                    if (input && input[0]) {\n                        this.port.postMessage(input[0]);\n                    }\n                    return true;\n                }\n            }\n            registerProcessor('recorder-processor', RecorderProcessor);\n        "],{type:"application/javascript"});return URL.createObjectURL(t)})();await l.audioWorklet.addModule(t),URL.revokeObjectURL(t),f=!0}c=l.createGain(),c.gain.value=1,u=new AudioWorkletNode(l,"recorder-processor"),u.port.onmessage=t=>{d.push(new Float32Array(t.data))},t.connect(u),t.connect(c),c.connect(l.destination);const e=r*(n/1e3);p=setInterval(async()=>{if(0===d.length)return;let t=new Float32Array(0);for(;t.length<e&&d.length;){const e=d.shift(),n=new Float32Array(t.length+e.length);n.set(t,0),n.set(e,t.length),t=n}if(t.length<e)return;const n=function(t){const e=t.length,n=new ArrayBuffer(2*e),r=new DataView(n);for(let a=0;a<e;a++){const e=Math.max(-1,Math.min(1,t[a]));r.setInt16(2*a,e<0?32768*e:32767*e,!0)}return n}(t.slice(0,e)),a=function(t,e){const n=t.byteLength,r=new ArrayBuffer(44+n),a=new DataView(r),o=(t,e)=>{for(let n=0;n<e.length;n++)a.setUint8(t+n,e.charCodeAt(n))};return o(0,"RIFF"),a.setUint32(4,36+n,!0),o(8,"WAVE"),o(12,"fmt "),a.setUint32(16,16,!0),a.setUint16(20,1,!0),a.setUint16(22,1,!0),a.setUint32(24,e,!0),a.setUint32(28,2*e,!0),a.setUint16(32,2,!0),a.setUint16(34,16,!0),o(36,"data"),a.setUint32(40,n,!0),new Uint8Array(r).set(new Uint8Array(t),44),r}(n,r);b(await o({pcm:n,wav:a}))},n),i=!0}catch(t){console.error("[artplayerPluginAsr] Initialization failed:",t),await x()}}),t.on("pause",x),t.on("destroy",A),{name:"artplayerPluginAsr",stop:A,hide:w,append:b}}}});
+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";class t{constructor(t,e){this.video=t,this.sampleRate=e,this.closed=!1,this.direct=!1,this.workletLoaded=!1}assertOpen(){if(this.closed)throw new Error("Audio capture was closed")}revokeWorklet(){void 0!==this.blobUrl&&(URL.revokeObjectURL(this.blobUrl),this.blobUrl=void 0)}async initialize(){this.assertOpen();const t=window,e=window.AudioContext||t.webkitAudioContext;if(!e)throw new Error("AudioContext is not supported");const i=this.context??(this.context=new e({sampleRate:this.sampleRate}));if("suspended"===i.state&&await i.resume(),this.assertOpen(),!this.workletLoaded){this.blobUrl=URL.createObjectURL(new Blob(["\nclass RecorderProcessor extends AudioWorkletProcessor {\n    process(inputs) {\n        const input = inputs[0];\n        if (input && input[0]) {\n            this.port.postMessage(input[0]);\n        }\n        return true;\n    }\n}\nregisterProcessor('recorder-processor', RecorderProcessor);\n"],{type:"application/javascript"}));try{await i.audioWorklet.addModule(this.blobUrl),this.workletLoaded=!0}finally{this.revokeWorklet()}}if(this.assertOpen(),!this.source)try{this.source=i.createMediaElementSource(this.video),this.direct=!0}catch(s){console.warn("[artplayerPluginAsr] Direct connection failed:",s);const t=this.video.captureStream||this.video.mozCaptureStream;if(!t)throw new Error("Could not establish audio source");this.stream=t.call(this.video),this.source=i.createMediaStreamSource(this.stream)}}prepare(){return this.preparation??(this.preparation=this.initialize().catch(t=>{throw this.preparation=void 0,t})),this.preparation}get ownsMediaConnection(){return this.direct}idle(){const t=this.gain;this.disconnect(),this.direct&&this.context&&this.source&&(this.gain=t||this.context.createGain(),t||(this.gain.gain.value=1),this.source.connect(this.gain),this.gain.connect(this.context.destination))}connect(t){this.assertOpen();const e=this.context,i=this.source;if(!e||!i)throw new Error("Audio capture is not prepared");const s=this.gain;this.disconnect();const n=this.gain=s||e.createGain();s||(n.gain.value=1);const r=this.recorder=new AudioWorkletNode(e,"recorder-processor");r.port.onmessage=e=>{this.closed||this.recorder!==r||t(e.data)},i.connect(r),i.connect(n),n.connect(e.destination)}volume(t){this.gain&&(this.gain.gain.value=t)}disconnect(){this.recorder&&(this.recorder.port.onmessage=null,this.recorder.disconnect(),this.recorder=void 0),this.gain?.disconnect(),this.gain=void 0,this.source?.disconnect()}async close(){if(this.closed)return;this.closed=!0,this.disconnect(),this.revokeWorklet(),this.stream?.getTracks().forEach(t=>t.stop()),this.stream=void 0;const t=this.context;this.context=void 0,this.source=void 0,t&&"closed"!==t.state&&await t.close()}}class e{constructor(){this.offset=0,this.size=0}get length(){return this.size}push(t){if(0===t.length)return;const e={samples:new Float32Array(t)};this.tail?this.tail.next=e:this.head=e,this.tail=e,this.size+=t.length}take(t){if(!Number.isSafeInteger(t)||t<=0)throw new RangeError("Sample count must be a positive safe integer");if(t>this.size)return null;const e=new Float32Array(t);let i=0;for(;this.head&&i<t;){const s=this.head.samples,n=Math.min(s.length-this.offset,t-i);e.set(s.subarray(this.offset,this.offset+n),i),i+=n,this.offset+=n,this.offset===s.length&&(this.head=this.head.next,this.offset=0)}return this.head||(this.tail=void 0),this.size-=t,e}clear(){this.head=void 0,this.tail=void 0,this.offset=0,this.size=0}}class i{constructor(t,i,s){this.video=t,this.options=i,this.append=s,this.queue=new e,this.closing=Promise.resolve(),this.running=!1,this.terminal=!1,this.epoch=0}reset(){this.epoch++,this.pending=void 0,this.queue.clear()}pause(){this.reset(),this.running=!1,clearInterval(this.timer),this.timer=void 0,this.starting=void 0,this.graph?.idle()}restart(){const t=this.running||Boolean(this.starting);return this.pause(),this.graph&&!this.graph.ownsMediaConnection?this.stop().then(()=>t?this.start():void 0):t?this.start():Promise.resolve()}start(){if(this.terminal||this.running)return Promise.resolve();if(this.starting)return this.starting;const e=this.epoch,i=()=>!this.terminal&&this.epoch===e,s=(async()=>{if(await this.closing,!i())return;const{sampleRate:e,interval:s}=this.options,n=Math.floor(e*s/1e3);if(!Number.isSafeInteger(n)||n<1||!Number.isFinite(s)||s<=0)throw new Error("Audio chunk length must be positive and finite");const r=this.graph??(this.graph=new t(this.video,e));await r.prepare(),i()?(r.connect(t=>{if(this.running&&this.graph===r)return this.queue.length+t.length>Math.max(60*e,2*n)?(console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit"),void this.pause()):void this.queue.push(t)}),this.running=!0,this.timer=setInterval(()=>this.tick(n),s)):this.running||this.graph!==r||r.idle()})().catch(async t=>{i()&&(console.error("[artplayerPluginAsr] Initialization failed:",t),await this.stop())}).finally(()=>{this.starting===s&&(this.starting=void 0)});return this.starting=s,s}async tick(t){if(!this.running||this.pending)return;const e=this.queue.take(t);if(!e)return;const i=this.epoch,s=this.pending={};try{const t=await this.options.onAudioChunk(function(t,e){const i=new ArrayBuffer(2*t.length),s=new DataView(i);for(let a=0;a<t.length;a++){const e=Math.max(-1,Math.min(1,t[a]));s.setInt16(2*a,e<0?32768*e:32767*e,!0)}const n=new ArrayBuffer(44+i.byteLength),r=new DataView(n);function o(t,e){for(let i=0;i<e.length;i++)r.setUint8(t+i,e.charCodeAt(i))}return o(0,"RIFF"),r.setUint32(4,36+i.byteLength,!0),o(8,"WAVE"),o(12,"fmt "),r.setUint32(16,16,!0),r.setUint16(20,1,!0),r.setUint16(22,1,!0),r.setUint32(24,e,!0),r.setUint32(28,2*e,!0),r.setUint16(32,2,!0),r.setUint16(34,16,!0),o(36,"data"),r.setUint32(40,i.byteLength,!0),new Uint8Array(n).set(new Uint8Array(i),44),{pcm:i,wav:n}}(e,this.options.sampleRate));this.running&&!this.terminal&&this.epoch===i&&this.append(t)}catch(n){this.epoch!==i||this.terminal||console.error("[artplayerPluginAsr] Audio callback failed:",n)}finally{this.pending===s&&(this.pending=void 0)}}volume(t){this.graph?.volume(t)}stop(t=!1){this.terminal||(this.terminal=t),this.pause();const e=this.graph;return!t&&e?.ownsMediaConnection||(this.graph=void 0,this.closing=Promise.all([this.closing,e?.close()]).then(()=>{})),this.closing}}function s(t={}){const{length:e=3,interval:s=100,sampleRate:n=16e3,autoHideTimeout:r=1e4,onAudioChunk:o=()=>null}=t;return t=>{const a=t.layers.add({name:"asr",html:""});if(!a)throw new Error("Could not create ASR subtitle layer");const h=function(t,e,i){let s,n=!1;function r(){clearTimeout(s),s=void 0}function o(){n||(t.style.display="none")}return{append:function(a){n||"string"!==typeof a||(r(),s=setTimeout(o,i),t.style.display="",t.innerHTML=a.split(/(?<=[\u3001\u3002\uff01\uff1f!?.])\s*/u).map(t=>t.trim()).filter(Boolean).slice(-e).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))},hide:o,destroy(){n=!0,r()}}}(a,e,r),c=new i(t.video,{interval:s,sampleRate:n,onAudioChunk:o},h.append),l=()=>c.volume(t.volume),d=()=>c.start(),u=()=>c.pause(),p=()=>c.restart(),g=()=>(h.destroy(),t.off("video:volumechange",l),t.off("play",d),t.off("pause",u),t.off("restart",p),t.off("destroy",g),c.stop(!0));return t.on("video:volumechange",l),t.on("play",d),t.on("pause",u),t.on("restart",p),t.on("destroy",g),{name:"artplayerPluginAsr",stop:()=>c.stop(),hide:h.hide,append:h.append}}}if(Object.defineProperty(s,"default",{value:s}),"undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return s});
diff --git a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js
index 71d3bc90c..3a00665c7 100644
--- a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js
+++ b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js
@@ -4,4 +4,4 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";var t=(t,e,n)=>new Promise((r,o)=>{var a=t=>{try{l(n.next(t))}catch(e){o(e)}},i=t=>{try{l(n.throw(t))}catch(e){o(e)}},l=t=>t.done?r(t.value):Promise.resolve(t.value).then(a,i);l((n=n.apply(t,e)).next())});if("undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return function(e={}){const{length:n=3,interval:r=100,sampleRate:o=16e3,autoHideTimeout:a=1e4,onAudioChunk:i=()=>null}=e;return e=>{let l=!1,s=null,u=null,c=null,d=null,p=[],f=null,y=!1,m=null,h=null,g=null;const v=e.layers.add({name:"asr",html:""});function b(){v.style.display="none"}function x(t){var e;"string"===typeof t&&(clearTimeout(m),m=setTimeout(b,a),v.style.display="",v.innerHTML=(e=t,e.split(new RegExp("(?<=[\u3001\u3002\uff01\uff1f!?.])\\s*","u")).map(t=>t.trim()).filter(Boolean).slice(-n)).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))}function w(){return t(this,null,function*(){if(!u&&e.video)try{return u=s.createMediaElementSource(e.video),u}catch(n){console.warn("[artplayerPluginAsr] Direct connection failed:",n)}try{if(h||(h=yield function(e){return t(this,null,function*(){try{return e.captureStream?e.captureStream():e.mozCaptureStream?e.mozCaptureStream():(console.warn("[artplayerPluginAsr] captureStream not supported"),null)}catch(n){return console.warn("[artplayerPluginAsr] Error capturing stream:",n),null}})}(e.video)),h)return g=s.createMediaStreamSource(h),g}catch(n){console.warn("[artplayerPluginAsr] MediaStream fallback failed:",n)}return null})}function A(){return t(this,null,function*(){l&&(l=!1,clearInterval(f),f=null,c&&(c.disconnect(),c.port.onmessage=null,c=null),d&&(d.disconnect(),d=null),p=[])})}function U(){return t(this,null,function*(){yield A(),g&&(g.disconnect(),g=null),u&&(u.disconnect(),u=null),h&&(h.getTracks().forEach(t=>t.stop()),h=null),s&&(yield s.close(),s=null),y=!1})}return e.on("video:volumechange",()=>{d&&(d.gain.value=e.volume)}),e.on("play",function(){return t(this,null,function*(){if(!l)try{yield function(){return t(this,null,function*(){return s||(s=new(window.AudioContext||window.webkitAudioContext)({sampleRate:o}),"suspended"===s.state&&(yield s.resume()),s)})}();const e=yield w();if(!e)throw new Error("Could not establish audio source");if(!y){const t=(()=>{const t=new Blob(["\n            class RecorderProcessor extends AudioWorkletProcessor {\n                process(inputs) {\n                    const input = inputs[0];\n                    if (input && input[0]) {\n                        this.port.postMessage(input[0]);\n                    }\n                    return true;\n                }\n            }\n            registerProcessor('recorder-processor', RecorderProcessor);\n        "],{type:"application/javascript"});return URL.createObjectURL(t)})();yield s.audioWorklet.addModule(t),URL.revokeObjectURL(t),y=!0}d=s.createGain(),d.gain.value=1,c=new AudioWorkletNode(s,"recorder-processor"),c.port.onmessage=t=>{p.push(new Float32Array(t.data))},e.connect(c),e.connect(d),d.connect(s.destination);const n=o*(r/1e3);f=setInterval(()=>t(null,null,function*(){if(0===p.length)return;let t=new Float32Array(0);for(;t.length<n&&p.length;){const e=p.shift(),n=new Float32Array(t.length+e.length);n.set(t,0),n.set(e,t.length),t=n}if(t.length<n)return;const e=function(t){const e=t.length,n=new ArrayBuffer(2*e),r=new DataView(n);for(let o=0;o<e;o++){const e=Math.max(-1,Math.min(1,t[o]));r.setInt16(2*o,e<0?32768*e:32767*e,!0)}return n}(t.slice(0,n)),r=function(t,e){const n=t.byteLength,r=new ArrayBuffer(44+n),o=new DataView(r),a=(t,e)=>{for(let n=0;n<e.length;n++)o.setUint8(t+n,e.charCodeAt(n))};return a(0,"RIFF"),o.setUint32(4,36+n,!0),a(8,"WAVE"),a(12,"fmt "),o.setUint32(16,16,!0),o.setUint16(20,1,!0),o.setUint16(22,1,!0),o.setUint32(24,e,!0),o.setUint32(28,2*e,!0),o.setUint16(32,2,!0),o.setUint16(34,16,!0),a(36,"data"),o.setUint32(40,n,!0),new Uint8Array(r).set(new Uint8Array(t),44),r}(e,o);x(yield i({pcm:e,wav:r}))}),r),l=!0}catch(e){console.error("[artplayerPluginAsr] Initialization failed:",e),yield A()}})}),e.on("pause",A),e.on("destroy",U),{name:"artplayerPluginAsr",stop:U,hide:b,append:x}}}});
+!function(t,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"==typeof define&&define.amd?(t.artplayerPluginAsr=e(),define(function(){return t.artplayerPluginAsr})):(t="undefined"!==typeof globalThis?globalThis:t||self).artplayerPluginAsr=e()}(this,function(){"use strict";var t=(t,e,i)=>new Promise((s,n)=>{var r=t=>{try{a(i.next(t))}catch(e){n(e)}},o=t=>{try{a(i.throw(t))}catch(e){n(e)}},a=t=>t.done?s(t.value):Promise.resolve(t.value).then(r,o);a((i=i.apply(t,e)).next())});class e{constructor(t,e){this.video=t,this.sampleRate=e,this.closed=!1,this.direct=!1,this.workletLoaded=!1}assertOpen(){if(this.closed)throw new Error("Audio capture was closed")}revokeWorklet(){void 0!==this.blobUrl&&(URL.revokeObjectURL(this.blobUrl),this.blobUrl=void 0)}initialize(){return t(this,null,function*(){var t;this.assertOpen();const e=window,i=window.AudioContext||e.webkitAudioContext;if(!i)throw new Error("AudioContext is not supported");const s=null!=(t=this.context)?t:this.context=new i({sampleRate:this.sampleRate});if("suspended"===s.state&&(yield s.resume()),this.assertOpen(),!this.workletLoaded){this.blobUrl=URL.createObjectURL(new Blob(["\nclass RecorderProcessor extends AudioWorkletProcessor {\n    process(inputs) {\n        const input = inputs[0];\n        if (input && input[0]) {\n            this.port.postMessage(input[0]);\n        }\n        return true;\n    }\n}\nregisterProcessor('recorder-processor', RecorderProcessor);\n"],{type:"application/javascript"}));try{yield s.audioWorklet.addModule(this.blobUrl),this.workletLoaded=!0}finally{this.revokeWorklet()}}if(this.assertOpen(),!this.source)try{this.source=s.createMediaElementSource(this.video),this.direct=!0}catch(n){console.warn("[artplayerPluginAsr] Direct connection failed:",n);const t=this.video.captureStream||this.video.mozCaptureStream;if(!t)throw new Error("Could not establish audio source");this.stream=t.call(this.video),this.source=s.createMediaStreamSource(this.stream)}})}prepare(){return null!=this.preparation||(this.preparation=this.initialize().catch(t=>{throw this.preparation=void 0,t})),this.preparation}get ownsMediaConnection(){return this.direct}idle(){const t=this.gain;this.disconnect(),this.direct&&this.context&&this.source&&(this.gain=t||this.context.createGain(),t||(this.gain.gain.value=1),this.source.connect(this.gain),this.gain.connect(this.context.destination))}connect(t){this.assertOpen();const e=this.context,i=this.source;if(!e||!i)throw new Error("Audio capture is not prepared");const s=this.gain;this.disconnect();const n=this.gain=s||e.createGain();s||(n.gain.value=1);const r=this.recorder=new AudioWorkletNode(e,"recorder-processor");r.port.onmessage=e=>{this.closed||this.recorder!==r||t(e.data)},i.connect(r),i.connect(n),n.connect(e.destination)}volume(t){this.gain&&(this.gain.gain.value=t)}disconnect(){var t,e;this.recorder&&(this.recorder.port.onmessage=null,this.recorder.disconnect(),this.recorder=void 0),null==(t=this.gain)||t.disconnect(),this.gain=void 0,null==(e=this.source)||e.disconnect()}close(){return t(this,null,function*(){var t;if(this.closed)return;this.closed=!0,this.disconnect(),this.revokeWorklet(),null==(t=this.stream)||t.getTracks().forEach(t=>t.stop()),this.stream=void 0;const e=this.context;this.context=void 0,this.source=void 0,e&&"closed"!==e.state&&(yield e.close())})}}class i{constructor(){this.offset=0,this.size=0}get length(){return this.size}push(t){if(0===t.length)return;const e={samples:new Float32Array(t)};this.tail?this.tail.next=e:this.head=e,this.tail=e,this.size+=t.length}take(t){if(!Number.isSafeInteger(t)||t<=0)throw new RangeError("Sample count must be a positive safe integer");if(t>this.size)return null;const e=new Float32Array(t);let i=0;for(;this.head&&i<t;){const s=this.head.samples,n=Math.min(s.length-this.offset,t-i);e.set(s.subarray(this.offset,this.offset+n),i),i+=n,this.offset+=n,this.offset===s.length&&(this.head=this.head.next,this.offset=0)}return this.head||(this.tail=void 0),this.size-=t,e}clear(){this.head=void 0,this.tail=void 0,this.offset=0,this.size=0}}class s{constructor(t,e,s){this.video=t,this.options=e,this.append=s,this.queue=new i,this.closing=Promise.resolve(),this.running=!1,this.terminal=!1,this.epoch=0}reset(){this.epoch++,this.pending=void 0,this.queue.clear()}pause(){var t;this.reset(),this.running=!1,clearInterval(this.timer),this.timer=void 0,this.starting=void 0,null==(t=this.graph)||t.idle()}restart(){const t=this.running||Boolean(this.starting);return this.pause(),this.graph&&!this.graph.ownsMediaConnection?this.stop().then(()=>t?this.start():void 0):t?this.start():Promise.resolve()}start(){if(this.terminal||this.running)return Promise.resolve();if(this.starting)return this.starting;const i=this.epoch,s=()=>!this.terminal&&this.epoch===i,n=(()=>t(this,null,function*(){var t;if(yield this.closing,!s())return;const{sampleRate:i,interval:n}=this.options,r=Math.floor(i*n/1e3);if(!Number.isSafeInteger(r)||r<1||!Number.isFinite(n)||n<=0)throw new Error("Audio chunk length must be positive and finite");const o=null!=(t=this.graph)?t:this.graph=new e(this.video,i);yield o.prepare(),s()?(o.connect(t=>{if(this.running&&this.graph===o)return this.queue.length+t.length>Math.max(60*i,2*r)?(console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit"),void this.pause()):void this.queue.push(t)}),this.running=!0,this.timer=setInterval(()=>this.tick(r),n)):this.running||this.graph!==o||o.idle()}))().catch(e=>t(this,null,function*(){s()&&(console.error("[artplayerPluginAsr] Initialization failed:",e),yield this.stop())})).finally(()=>{this.starting===n&&(this.starting=void 0)});return this.starting=n,n}tick(e){return t(this,null,function*(){if(!this.running||this.pending)return;const t=this.queue.take(e);if(!t)return;const i=this.epoch,s=this.pending={};try{const e=yield this.options.onAudioChunk(function(t,e){const i=new ArrayBuffer(2*t.length),s=new DataView(i);for(let a=0;a<t.length;a++){const e=Math.max(-1,Math.min(1,t[a]));s.setInt16(2*a,e<0?32768*e:32767*e,!0)}const n=new ArrayBuffer(44+i.byteLength),r=new DataView(n);function o(t,e){for(let i=0;i<e.length;i++)r.setUint8(t+i,e.charCodeAt(i))}return o(0,"RIFF"),r.setUint32(4,36+i.byteLength,!0),o(8,"WAVE"),o(12,"fmt "),r.setUint32(16,16,!0),r.setUint16(20,1,!0),r.setUint16(22,1,!0),r.setUint32(24,e,!0),r.setUint32(28,2*e,!0),r.setUint16(32,2,!0),r.setUint16(34,16,!0),o(36,"data"),r.setUint32(40,i.byteLength,!0),new Uint8Array(n).set(new Uint8Array(i),44),{pcm:i,wav:n}}(t,this.options.sampleRate));this.running&&!this.terminal&&this.epoch===i&&this.append(e)}catch(n){this.epoch!==i||this.terminal||console.error("[artplayerPluginAsr] Audio callback failed:",n)}finally{this.pending===s&&(this.pending=void 0)}})}volume(t){var e;null==(e=this.graph)||e.volume(t)}stop(t=!1){this.terminal||(this.terminal=t),this.pause();const e=this.graph;return!t&&(null==e?void 0:e.ownsMediaConnection)||(this.graph=void 0,this.closing=Promise.all([this.closing,null==e?void 0:e.close()]).then(()=>{})),this.closing}}function n(t={}){const{length:e=3,interval:i=100,sampleRate:n=16e3,autoHideTimeout:r=1e4,onAudioChunk:o=()=>null}=t;return t=>{const a=t.layers.add({name:"asr",html:""});if(!a)throw new Error("Could not create ASR subtitle layer");const h=function(t,e,i){let s,n=!1;function r(){clearTimeout(s),s=void 0}function o(){n||(t.style.display="none")}return{append:function(a){n||"string"!==typeof a||(r(),s=setTimeout(o,i),t.style.display="",t.innerHTML=a.split(new RegExp("(?<=[\u3001\u3002\uff01\uff1f!?.])\\s*","u")).map(t=>t.trim()).filter(Boolean).slice(-e).map(t=>`<div class="art-asr-line">${t}</div>`).join(""))},hide:o,destroy(){n=!0,r()}}}(a,e,r),l=new s(t.video,{interval:i,sampleRate:n,onAudioChunk:o},h.append),c=()=>l.volume(t.volume),d=()=>l.start(),u=()=>l.pause(),p=()=>l.restart(),f=()=>(h.destroy(),t.off("video:volumechange",c),t.off("play",d),t.off("pause",u),t.off("restart",p),t.off("destroy",f),l.stop(!0));return t.on("video:volumechange",c),t.on("play",d),t.on("pause",u),t.on("restart",p),t.on("destroy",f),{name:"artplayerPluginAsr",stop:()=>l.stop(),hide:h.hide,append:h.append}}}if(Object.defineProperty(n,"default",{value:n}),"undefined"!==typeof document&&!document.getElementById("artplayer-plugin-asr")){const t=document.createElement("style");t.id="artplayer-plugin-asr",t.textContent=".art-video-player .art-layer-asr{pointer-events:none!important;position:absolute;z-index:150;inset:0;display:flex;flex-direction:column;justify-content:end;padding:0 2%;font-size:1rem;gap:var(--art-subtitle-gap);padding-bottom:var(--art-subtitle-bottom);transition:padding-bottom var(--art-transition-duration) ease;text-shadow:var(--art-subtitle-border) 1px 0 1px,var(--art-subtitle-border) 0 1px 1px,var(--art-subtitle-border) -1px 0 1px,var(--art-subtitle-border) 0 -1px 1px,var(--art-subtitle-border) 1px 1px 1px,var(--art-subtitle-border) -1px -1px 1px,var(--art-subtitle-border) 1px -1px 1px,var(--art-subtitle-border) -1px 1px 1px}.art-video-player.art-control-show .art-layer-asr{padding-bottom:calc(var(--art-control-height) + var(--art-subtitle-bottom))}",document.head.appendChild(t)}return n});
diff --git a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs
index 37fc36858..3da312943 100644
--- a/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs
+++ b/packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs
@@ -4,248 +4,394 @@
  * (c) 2017-2026 Harvey Zhao
  * Released under the MIT License.
  */
-const style = ".art-video-player .art-layer-asr {\n  pointer-events: none !important;\n  position: absolute;\n  z-index: 150;\n  inset: 0px;\n  display: flex;\n  flex-direction: column;\n  justify-content: end;\n  padding: 0 2%;\n  font-size: 1rem;\n  gap: var(--art-subtitle-gap);\n  padding-bottom: var(--art-subtitle-bottom);\n  transition: padding-bottom var(--art-transition-duration) ease;\n  text-shadow: var(--art-subtitle-border) 1px 0 1px, var(--art-subtitle-border) 0 1px 1px, var(--art-subtitle-border) -1px 0 1px, var(--art-subtitle-border) 0 -1px 1px, var(--art-subtitle-border) 1px 1px 1px, var(--art-subtitle-border) -1px -1px 1px, var(--art-subtitle-border) 1px -1px 1px, var(--art-subtitle-border) -1px 1px 1px;\n}\n.art-video-player.art-control-show .art-layer-asr {\n  padding-bottom: calc(var(--art-control-height) + var(--art-subtitle-bottom));\n}\n";
-function artplayerPluginAsr(option = {}) {
-  const {
-    length = 3,
-    interval = 100,
-    sampleRate = 16e3,
-    autoHideTimeout = 1e4,
-    onAudioChunk = () => null
-  } = option;
-  return (art) => {
-    let started = false;
-    let audioCtx = null;
-    let sourceNode = null;
-    let recorderNode = null;
-    let gainNode = null;
-    let bufferChunks = [];
-    let timer = null;
-    let workletLoaded = false;
-    let hideTimer = null;
-    let mediaStream = null;
-    let mediaStreamSource = null;
-    const $asr = art.layers.add({
-      name: "asr",
-      html: ""
-    });
-    function splitByPunctuation(text) {
-      return text.split(/(?<=[、。！？!?.])\s*/u).map((s) => s.trim()).filter(Boolean).slice(-length);
-    }
-    function hide() {
-      $asr.style.display = "none";
-    }
-    function append(subtitle) {
-      if (typeof subtitle !== "string")
-        return;
-      clearTimeout(hideTimer);
-      hideTimer = setTimeout(hide, autoHideTimeout);
-      $asr.style.display = "";
-      $asr.innerHTML = splitByPunctuation(subtitle).map((line) => `<div class="art-asr-line">${line}</div>`).join("");
-    }
-    const recorderProcessorCode = `
-            class RecorderProcessor extends AudioWorkletProcessor {
-                process(inputs) {
-                    const input = inputs[0];
-                    if (input && input[0]) {
-                        this.port.postMessage(input[0]);
-                    }
-                    return true;
-                }
-            }
-            registerProcessor('recorder-processor', RecorderProcessor);
-        `;
-    const createWorkletBlobUrl = () => {
-      const blob = new Blob([recorderProcessorCode], { type: "application/javascript" });
-      return URL.createObjectURL(blob);
-    };
-    function floatTo16BitPCM(float32Array) {
-      const len = float32Array.length;
-      const buffer = new ArrayBuffer(len * 2);
-      const view = new DataView(buffer);
-      for (let i = 0; i < len; i++) {
-        const s = Math.max(-1, Math.min(1, float32Array[i]));
-        view.setInt16(i * 2, s < 0 ? s * 32768 : s * 32767, true);
-      }
-      return buffer;
-    }
-    function pcmToWav(pcmBuffer, sampleRate2) {
-      const pcmLength = pcmBuffer.byteLength;
-      const wavBuffer = new ArrayBuffer(44 + pcmLength);
-      const view = new DataView(wavBuffer);
-      const writeString = (offset, str) => {
-        for (let i = 0; i < str.length; i++) {
-          view.setUint8(offset + i, str.charCodeAt(i));
+const recorderProcessorCode = `
+class RecorderProcessor extends AudioWorkletProcessor {
+    process(inputs) {
+        const input = inputs[0];
+        if (input && input[0]) {
+            this.port.postMessage(input[0]);
         }
-      };
-      writeString(0, "RIFF");
-      view.setUint32(4, 36 + pcmLength, true);
-      writeString(8, "WAVE");
-      writeString(12, "fmt ");
-      view.setUint32(16, 16, true);
-      view.setUint16(20, 1, true);
-      view.setUint16(22, 1, true);
-      view.setUint32(24, sampleRate2, true);
-      view.setUint32(28, sampleRate2 * 2, true);
-      view.setUint16(32, 2, true);
-      view.setUint16(34, 16, true);
-      writeString(36, "data");
-      view.setUint32(40, pcmLength, true);
-      new Uint8Array(wavBuffer).set(new Uint8Array(pcmBuffer), 44);
-      return wavBuffer;
+        return true;
     }
-    async function setupAudioContext() {
-      if (audioCtx)
-        return audioCtx;
-      audioCtx = new (window.AudioContext || window.webkitAudioContext)({ sampleRate });
-      if (audioCtx.state === "suspended")
-        await audioCtx.resume();
-      return audioCtx;
+}
+registerProcessor('recorder-processor', RecorderProcessor);
+`;
+class AudioGraph {
+  constructor(video, sampleRate) {
+    this.video = video;
+    this.sampleRate = sampleRate;
+    this.closed = false;
+    this.direct = false;
+    this.workletLoaded = false;
+  }
+  assertOpen() {
+    if (this.closed)
+      throw new Error("Audio capture was closed");
+  }
+  revokeWorklet() {
+    if (this.blobUrl !== void 0) {
+      URL.revokeObjectURL(this.blobUrl);
+      this.blobUrl = void 0;
     }
-    async function setupAudioSource() {
-      if (!sourceNode && art.video) {
-        try {
-          sourceNode = audioCtx.createMediaElementSource(art.video);
-          return sourceNode;
-        } catch (err) {
-          console.warn("[artplayerPluginAsr] Direct connection failed:", err);
-        }
-      }
+  }
+  async initialize() {
+    this.assertOpen();
+    const platform = window;
+    const Context = window.AudioContext || platform.webkitAudioContext;
+    if (!Context)
+      throw new Error("AudioContext is not supported");
+    const context = this.context ?? (this.context = new Context({ sampleRate: this.sampleRate }));
+    if (context.state === "suspended")
+      await context.resume();
+    this.assertOpen();
+    if (!this.workletLoaded) {
+      this.blobUrl = URL.createObjectURL(new Blob([recorderProcessorCode], { type: "application/javascript" }));
       try {
-        if (!mediaStream) {
-          mediaStream = await captureAudioFromVideo(art.video);
-        }
-        if (mediaStream) {
-          mediaStreamSource = audioCtx.createMediaStreamSource(mediaStream);
-          return mediaStreamSource;
-        }
-      } catch (err) {
-        console.warn("[artplayerPluginAsr] MediaStream fallback failed:", err);
-      }
-      return null;
-    }
-    async function captureAudioFromVideo(videoElement) {
-      try {
-        if (videoElement.captureStream)
-          return videoElement.captureStream();
-        if (videoElement.mozCaptureStream)
-          return videoElement.mozCaptureStream();
-        console.warn("[artplayerPluginAsr] captureStream not supported");
-        return null;
-      } catch (err) {
-        console.warn("[artplayerPluginAsr] Error capturing stream:", err);
-        return null;
+        await context.audioWorklet.addModule(this.blobUrl);
+        this.workletLoaded = true;
+      } finally {
+        this.revokeWorklet();
       }
     }
-    async function startCapture() {
-      if (started)
-        return;
+    this.assertOpen();
+    if (!this.source) {
       try {
-        await setupAudioContext();
-        const audioSource = await setupAudioSource();
-        if (!audioSource)
+        this.source = context.createMediaElementSource(this.video);
+        this.direct = true;
+      } catch (error) {
+        console.warn("[artplayerPluginAsr] Direct connection failed:", error);
+        const capture = this.video.captureStream || this.video.mozCaptureStream;
+        if (!capture)
           throw new Error("Could not establish audio source");
-        if (!workletLoaded) {
-          const blobUrl = createWorkletBlobUrl();
-          await audioCtx.audioWorklet.addModule(blobUrl);
-          URL.revokeObjectURL(blobUrl);
-          workletLoaded = true;
-        }
-        gainNode = audioCtx.createGain();
-        gainNode.gain.value = 1;
-        recorderNode = new AudioWorkletNode(audioCtx, "recorder-processor");
-        recorderNode.port.onmessage = (event) => {
-          bufferChunks.push(new Float32Array(event.data));
-        };
-        audioSource.connect(recorderNode);
-        audioSource.connect(gainNode);
-        gainNode.connect(audioCtx.destination);
-        const CHUNK_SAMPLES = sampleRate * (interval / 1e3);
-        timer = setInterval(async () => {
-          if (bufferChunks.length === 0)
-            return;
-          let accumulated = new Float32Array(0);
-          while (accumulated.length < CHUNK_SAMPLES && bufferChunks.length) {
-            const next = bufferChunks.shift();
-            const tmp = new Float32Array(accumulated.length + next.length);
-            tmp.set(accumulated, 0);
-            tmp.set(next, accumulated.length);
-            accumulated = tmp;
-          }
-          if (accumulated.length < CHUNK_SAMPLES)
-            return;
-          const chunkToSend = accumulated.slice(0, CHUNK_SAMPLES);
-          const pcm = floatTo16BitPCM(chunkToSend);
-          const wav = pcmToWav(pcm, sampleRate);
-          const subtitle = await onAudioChunk({ pcm, wav });
-          append(subtitle);
-        }, interval);
-        started = true;
-      } catch (err) {
-        console.error("[artplayerPluginAsr] Initialization failed:", err);
-        await stopCapture();
+        this.stream = capture.call(this.video);
+        this.source = context.createMediaStreamSource(this.stream);
       }
     }
-    async function stopCapture() {
-      if (!started)
-        return;
-      started = false;
-      clearInterval(timer);
-      timer = null;
-      if (recorderNode) {
-        recorderNode.disconnect();
-        recorderNode.port.onmessage = null;
-        recorderNode = null;
-      }
-      if (gainNode) {
-        gainNode.disconnect();
-        gainNode = null;
-      }
-      bufferChunks = [];
+  }
+  prepare() {
+    this.preparation ?? (this.preparation = this.initialize().catch((error) => {
+      this.preparation = void 0;
+      throw error;
+    }));
+    return this.preparation;
+  }
+  get ownsMediaConnection() {
+    return this.direct;
+  }
+  idle() {
+    const gain = this.gain;
+    this.disconnect();
+    if (this.direct && this.context && this.source) {
+      this.gain = gain || this.context.createGain();
+      if (!gain)
+        this.gain.gain.value = 1;
+      this.source.connect(this.gain);
+      this.gain.connect(this.context.destination);
     }
-    async function destroy() {
-      await stopCapture();
-      if (mediaStreamSource) {
-        mediaStreamSource.disconnect();
-        mediaStreamSource = null;
-      }
-      if (sourceNode) {
-        sourceNode.disconnect();
-        sourceNode = null;
-      }
-      if (mediaStream) {
-        mediaStream.getTracks().forEach((track) => track.stop());
-        mediaStream = null;
-      }
-      if (audioCtx) {
-        await audioCtx.close();
-        audioCtx = null;
-      }
-      workletLoaded = false;
-    }
-    art.on("video:volumechange", () => {
-      if (gainNode) {
-        gainNode.gain.value = art.volume;
-      }
-    });
-    art.on("play", startCapture);
-    art.on("pause", stopCapture);
-    art.on("destroy", destroy);
-    return {
-      name: "artplayerPluginAsr",
-      stop: destroy,
-      hide,
-      append
+  }
+  connect(receive) {
+    this.assertOpen();
+    const context = this.context;
+    const source = this.source;
+    if (!context || !source)
+      throw new Error("Audio capture is not prepared");
+    const previousGain = this.gain;
+    this.disconnect();
+    const gain = this.gain = previousGain || context.createGain();
+    if (!previousGain)
+      gain.gain.value = 1;
+    const recorder = this.recorder = new AudioWorkletNode(context, "recorder-processor");
+    recorder.port.onmessage = (event) => {
+      if (!this.closed && this.recorder === recorder)
+        receive(event.data);
     };
+    source.connect(recorder);
+    source.connect(gain);
+    gain.connect(context.destination);
+  }
+  volume(value) {
+    if (this.gain)
+      this.gain.gain.value = value;
+  }
+  disconnect() {
+    if (this.recorder) {
+      this.recorder.port.onmessage = null;
+      this.recorder.disconnect();
+      this.recorder = void 0;
+    }
+    this.gain?.disconnect();
+    this.gain = void 0;
+    this.source?.disconnect();
+  }
+  async close() {
+    if (this.closed)
+      return;
+    this.closed = true;
+    this.disconnect();
+    this.revokeWorklet();
+    this.stream?.getTracks().forEach((track) => track.stop());
+    this.stream = void 0;
+    const context = this.context;
+    this.context = void 0;
+    this.source = void 0;
+    if (context && context.state !== "closed")
+      await context.close();
+  }
+}
+function encodeAudio(samples, sampleRate) {
+  const pcm = new ArrayBuffer(samples.length * 2);
+  const pcmView = new DataView(pcm);
+  for (let index = 0; index < samples.length; index++) {
+    const value = Math.max(-1, Math.min(1, samples[index]));
+    pcmView.setInt16(index * 2, value < 0 ? value * 32768 : value * 32767, true);
+  }
+  const wav = new ArrayBuffer(44 + pcm.byteLength);
+  const header = new DataView(wav);
+  function writeString(offset, value) {
+    for (let index = 0; index < value.length; index++)
+      header.setUint8(offset + index, value.charCodeAt(index));
+  }
+  writeString(0, "RIFF");
+  header.setUint32(4, 36 + pcm.byteLength, true);
+  writeString(8, "WAVE");
+  writeString(12, "fmt ");
+  header.setUint32(16, 16, true);
+  header.setUint16(20, 1, true);
+  header.setUint16(22, 1, true);
+  header.setUint32(24, sampleRate, true);
+  header.setUint32(28, sampleRate * 2, true);
+  header.setUint16(32, 2, true);
+  header.setUint16(34, 16, true);
+  writeString(36, "data");
+  header.setUint32(40, pcm.byteLength, true);
+  new Uint8Array(wav).set(new Uint8Array(pcm), 44);
+  return { pcm, wav };
+}
+class SampleQueue {
+  constructor() {
+    this.offset = 0;
+    this.size = 0;
+  }
+  get length() {
+    return this.size;
+  }
+  push(input) {
+    if (input.length === 0)
+      return;
+    const block = { samples: new Float32Array(input) };
+    if (this.tail)
+      this.tail.next = block;
+    else
+      this.head = block;
+    this.tail = block;
+    this.size += input.length;
+  }
+  take(count) {
+    if (!Number.isSafeInteger(count) || count <= 0)
+      throw new RangeError("Sample count must be a positive safe integer");
+    if (count > this.size)
+      return null;
+    const output = new Float32Array(count);
+    let written = 0;
+    while (this.head && written < count) {
+      const samples = this.head.samples;
+      const amount = Math.min(samples.length - this.offset, count - written);
+      output.set(samples.subarray(this.offset, this.offset + amount), written);
+      written += amount;
+      this.offset += amount;
+      if (this.offset === samples.length) {
+        this.head = this.head.next;
+        this.offset = 0;
+      }
+    }
+    if (!this.head)
+      this.tail = void 0;
+    this.size -= count;
+    return output;
+  }
+  clear() {
+    this.head = void 0;
+    this.tail = void 0;
+    this.offset = 0;
+    this.size = 0;
+  }
+}
+class Capture {
+  constructor(video, options, append) {
+    this.video = video;
+    this.options = options;
+    this.append = append;
+    this.queue = new SampleQueue();
+    this.closing = Promise.resolve();
+    this.running = false;
+    this.terminal = false;
+    this.epoch = 0;
+  }
+  reset() {
+    this.epoch++;
+    this.pending = void 0;
+    this.queue.clear();
+  }
+  pause() {
+    this.reset();
+    this.running = false;
+    clearInterval(this.timer);
+    this.timer = void 0;
+    this.starting = void 0;
+    this.graph?.idle();
+  }
+  restart() {
+    const active = this.running || Boolean(this.starting);
+    this.pause();
+    if (this.graph && !this.graph.ownsMediaConnection)
+      return this.stop().then(() => active ? this.start() : void 0);
+    return active ? this.start() : Promise.resolve();
+  }
+  start() {
+    if (this.terminal || this.running)
+      return Promise.resolve();
+    if (this.starting)
+      return this.starting;
+    const epoch = this.epoch;
+    const current = () => !this.terminal && this.epoch === epoch;
+    const operation = (async () => {
+      await this.closing;
+      if (!current())
+        return;
+      const { sampleRate, interval } = this.options;
+      const count = Math.floor(sampleRate * interval / 1e3);
+      if (!Number.isSafeInteger(count) || count < 1 || !Number.isFinite(interval) || interval <= 0)
+        throw new Error("Audio chunk length must be positive and finite");
+      const graph = this.graph ?? (this.graph = new AudioGraph(this.video, sampleRate));
+      await graph.prepare();
+      if (!current()) {
+        if (!this.running && this.graph === graph)
+          graph.idle();
+        return;
+      }
+      graph.connect((samples) => {
+        if (!this.running || this.graph !== graph)
+          return;
+        if (this.queue.length + samples.length > Math.max(sampleRate * 60, count * 2)) {
+          console.error("[artplayerPluginAsr] Audio callback backlog exceeded its capture limit");
+          this.pause();
+          return;
+        }
+        this.queue.push(samples);
+      });
+      this.running = true;
+      this.timer = setInterval(() => this.tick(count), interval);
+    })().catch(async (error) => {
+      if (current()) {
+        console.error("[artplayerPluginAsr] Initialization failed:", error);
+        await this.stop();
+      }
+    }).finally(() => {
+      if (this.starting === operation)
+        this.starting = void 0;
+    });
+    this.starting = operation;
+    return operation;
+  }
+  async tick(count) {
+    if (!this.running || this.pending)
+      return;
+    const samples = this.queue.take(count);
+    if (!samples)
+      return;
+    const epoch = this.epoch;
+    const pending = this.pending = {};
+    try {
+      const text = await this.options.onAudioChunk(encodeAudio(samples, this.options.sampleRate));
+      if (this.running && !this.terminal && this.epoch === epoch)
+        this.append(text);
+    } catch (error) {
+      if (this.epoch === epoch && !this.terminal)
+        console.error("[artplayerPluginAsr] Audio callback failed:", error);
+    } finally {
+      if (this.pending === pending)
+        this.pending = void 0;
+    }
+  }
+  volume(value) {
+    this.graph?.volume(value);
+  }
+  stop(terminal = false) {
+    this.terminal || (this.terminal = terminal);
+    this.pause();
+    const graph = this.graph;
+    if (terminal || !graph?.ownsMediaConnection) {
+      this.graph = void 0;
+      this.closing = Promise.all([this.closing, graph?.close()]).then(() => void 0);
+    }
+    return this.closing;
+  }
+}
+const style = ".art-video-player .art-layer-asr {\n  pointer-events: none !important;\n  position: absolute;\n  z-index: 150;\n  inset: 0px;\n  display: flex;\n  flex-direction: column;\n  justify-content: end;\n  padding: 0 2%;\n  font-size: 1rem;\n  gap: var(--art-subtitle-gap);\n  padding-bottom: var(--art-subtitle-bottom);\n  transition: padding-bottom var(--art-transition-duration) ease;\n  text-shadow: var(--art-subtitle-border) 1px 0 1px, var(--art-subtitle-border) 0 1px 1px, var(--art-subtitle-border) -1px 0 1px, var(--art-subtitle-border) 0 -1px 1px, var(--art-subtitle-border) 1px 1px 1px, var(--art-subtitle-border) -1px -1px 1px, var(--art-subtitle-border) 1px -1px 1px, var(--art-subtitle-border) -1px 1px 1px;\n}\n.art-video-player.art-control-show .art-layer-asr {\n  padding-bottom: calc(var(--art-control-height) + var(--art-subtitle-bottom));\n}\n";
+function createSubtitles(layer, length, autoHideTimeout) {
+  let timer;
+  let destroyed = false;
+  function cancelTimer() {
+    clearTimeout(timer);
+    timer = void 0;
+  }
+  function hide() {
+    if (!destroyed)
+      layer.style.display = "none";
+  }
+  function append(subtitle) {
+    if (destroyed || typeof subtitle !== "string")
+      return;
+    cancelTimer();
+    timer = setTimeout(hide, autoHideTimeout);
+    layer.style.display = "";
+    layer.innerHTML = subtitle.split(/(?<=[、。！？!?.])\s*/u).map((line) => line.trim()).filter(Boolean).slice(-length).map((line) => `<div class="art-asr-line">${line}</div>`).join("");
+  }
+  return {
+    append,
+    hide,
+    destroy() {
+      destroyed = true;
+      cancelTimer();
+    }
   };
 }
-if (typeof document !== "undefined") {
-  if (!document.getElementById("artplayer-plugin-asr")) {
-    const $style = document.createElement("style");
-    $style.id = "artplayer-plugin-asr";
-    $style.textContent = style;
-    document.head.appendChild($style);
-  }
+function artplayerPluginAsr(option = {}) {
+  const { length = 3, interval = 100, sampleRate = 16e3, autoHideTimeout = 1e4, onAudioChunk = () => null } = option;
+  return (art) => {
+    const layer = art.layers.add({ name: "asr", html: "" });
+    if (!layer)
+      throw new Error("Could not create ASR subtitle layer");
+    const subtitles = createSubtitles(layer, length, autoHideTimeout);
+    const capture = new Capture(art.video, { interval, sampleRate, onAudioChunk }, subtitles.append);
+    const volume = () => capture.volume(art.volume);
+    const play = () => capture.start();
+    const pause = () => capture.pause();
+    const restart = () => capture.restart();
+    const stop = () => capture.stop();
+    const destroy = () => {
+      subtitles.destroy();
+      art.off("video:volumechange", volume);
+      art.off("play", play);
+      art.off("pause", pause);
+      art.off("restart", restart);
+      art.off("destroy", destroy);
+      return capture.stop(true);
+    };
+    art.on("video:volumechange", volume);
+    art.on("play", play);
+    art.on("pause", pause);
+    art.on("restart", restart);
+    art.on("destroy", destroy);
+    return { name: "artplayerPluginAsr", stop, hide: subtitles.hide, append: subtitles.append };
+  };
+}
+Object.defineProperty(artplayerPluginAsr, "default", { value: artplayerPluginAsr });
+if (typeof document !== "undefined" && !document.getElementById("artplayer-plugin-asr")) {
+  const styleElement = document.createElement("style");
+  styleElement.id = "artplayer-plugin-asr";
+  styleElement.textContent = style;
+  document.head.appendChild(styleElement);
 }
 export {
   artplayerPluginAsr as default
diff --git a/packages/artplayer-plugin-asr/src/audio-graph.ts b/packages/artplayer-plugin-asr/src/audio-graph.ts
new file mode 100644
index 000000000..2a00d7bab
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/audio-graph.ts
@@ -0,0 +1,144 @@
+import type { CaptureVideo } from './types'
+import { recorderProcessorCode } from './worklet'
+
+export class AudioGraph {
+  private context: AudioContext | undefined
+  private source: AudioNode | undefined
+  private stream: MediaStream | undefined
+  private recorder: AudioWorkletNode | undefined
+  private gain: GainNode | undefined
+  private preparation: Promise<void> | undefined
+  private blobUrl: string | undefined
+  private closed = false
+  private direct = false
+  private workletLoaded = false
+
+  constructor(private readonly video: CaptureVideo, private readonly sampleRate: number) {}
+
+  private assertOpen() {
+    if (this.closed)
+      throw new Error('Audio capture was closed')
+  }
+
+  private revokeWorklet() {
+    if (this.blobUrl !== undefined) {
+      URL.revokeObjectURL(this.blobUrl)
+      this.blobUrl = undefined
+    }
+  }
+
+  private async initialize() {
+    this.assertOpen()
+    const platform = window as Window & { webkitAudioContext?: typeof AudioContext }
+    const Context = window.AudioContext || platform.webkitAudioContext
+    if (!Context)
+      throw new Error('AudioContext is not supported')
+    const context = this.context ??= new Context({ sampleRate: this.sampleRate })
+    if (context.state === 'suspended')
+      await context.resume()
+    this.assertOpen()
+    if (!this.workletLoaded) {
+      this.blobUrl = URL.createObjectURL(new Blob([recorderProcessorCode], { type: 'application/javascript' }))
+      try {
+        await context.audioWorklet.addModule(this.blobUrl)
+        this.workletLoaded = true
+      }
+      finally {
+        this.revokeWorklet()
+      }
+    }
+    this.assertOpen()
+    if (!this.source) {
+      try {
+        this.source = context.createMediaElementSource(this.video)
+        this.direct = true
+      }
+      catch (error) {
+        console.warn('[artplayerPluginAsr] Direct connection failed:', error)
+        const capture = this.video.captureStream || this.video.mozCaptureStream
+        if (!capture)
+          throw new Error('Could not establish audio source')
+        this.stream = capture.call(this.video)
+        this.source = context.createMediaStreamSource(this.stream)
+      }
+    }
+  }
+
+  prepare() {
+    this.preparation ??= this.initialize().catch((error: unknown) => {
+      this.preparation = undefined
+      throw error
+    })
+    return this.preparation
+  }
+
+  get ownsMediaConnection() {
+    return this.direct
+  }
+
+  idle() {
+    const gain = this.gain
+    this.disconnect()
+    // A media element cannot be reattached after its original context is closed.
+    // Keep its audio route alive until the player releases the element itself.
+    if (this.direct && this.context && this.source) {
+      this.gain = gain || this.context.createGain()
+      if (!gain)
+        this.gain.gain.value = 1
+      this.source.connect(this.gain)
+      this.gain.connect(this.context.destination)
+    }
+  }
+
+  connect(receive: (samples: Float32Array) => void) {
+    this.assertOpen()
+    const context = this.context
+    const source = this.source
+    if (!context || !source)
+      throw new Error('Audio capture is not prepared')
+    const previousGain = this.gain
+    this.disconnect()
+    const gain = this.gain = previousGain || context.createGain()
+    if (!previousGain)
+      gain.gain.value = 1
+    const recorder = this.recorder = new AudioWorkletNode(context, 'recorder-processor')
+    recorder.port.onmessage = (event: MessageEvent<Float32Array>) => {
+      if (!this.closed && this.recorder === recorder)
+        receive(event.data)
+    }
+    source.connect(recorder)
+    source.connect(gain)
+    gain.connect(context.destination)
+  }
+
+  volume(value: number) {
+    if (this.gain)
+      this.gain.gain.value = value
+  }
+
+  disconnect() {
+    if (this.recorder) {
+      this.recorder.port.onmessage = null
+      this.recorder.disconnect()
+      this.recorder = undefined
+    }
+    this.gain?.disconnect()
+    this.gain = undefined
+    this.source?.disconnect()
+  }
+
+  async close() {
+    if (this.closed)
+      return
+    this.closed = true
+    this.disconnect()
+    this.revokeWorklet()
+    this.stream?.getTracks().forEach(track => track.stop())
+    this.stream = undefined
+    const context = this.context
+    this.context = undefined
+    this.source = undefined
+    if (context && context.state !== 'closed')
+      await context.close()
+  }
+}
diff --git a/packages/artplayer-plugin-asr/src/capture.ts b/packages/artplayer-plugin-asr/src/capture.ts
new file mode 100644
index 000000000..e7ac2f3da
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/capture.ts
@@ -0,0 +1,127 @@
+import type { CaptureOptions, CaptureVideo } from './types'
+import { AudioGraph } from './audio-graph'
+import { encodeAudio } from './encoding'
+import { SampleQueue } from './sample-queue'
+
+export class Capture {
+  private graph: AudioGraph | undefined
+  private readonly queue = new SampleQueue()
+  private timer: ReturnType<typeof setInterval> | undefined
+  private starting: Promise<void> | undefined
+  private closing: Promise<void> = Promise.resolve()
+  private running = false
+  private terminal = false
+  private epoch = 0
+  private pending: object | undefined
+
+  constructor(private readonly video: CaptureVideo, private readonly options: CaptureOptions, private readonly append: (text: unknown) => void) {}
+
+  private reset() {
+    this.epoch++
+    this.pending = undefined
+    this.queue.clear()
+  }
+
+  pause() {
+    this.reset()
+    this.running = false
+    clearInterval(this.timer)
+    this.timer = undefined
+    this.starting = undefined
+    this.graph?.idle()
+  }
+
+  restart() {
+    const active = this.running || Boolean(this.starting)
+    this.pause()
+    if (this.graph && !this.graph.ownsMediaConnection)
+      return this.stop().then(() => active ? this.start() : undefined)
+    return active ? this.start() : Promise.resolve()
+  }
+
+  start(): Promise<void> {
+    if (this.terminal || this.running)
+      return Promise.resolve()
+    if (this.starting)
+      return this.starting
+    const epoch = this.epoch
+    const current = () => !this.terminal && this.epoch === epoch
+    const operation = (async () => {
+      await this.closing
+      if (!current())
+        return
+      const { sampleRate, interval } = this.options
+      const count = Math.floor(sampleRate * interval / 1000)
+      if (!Number.isSafeInteger(count) || count < 1 || !Number.isFinite(interval) || interval <= 0)
+        throw new Error('Audio chunk length must be positive and finite')
+      const graph = this.graph ??= new AudioGraph(this.video, sampleRate)
+      await graph.prepare()
+      if (!current()) {
+        if (!this.running && this.graph === graph)
+          graph.idle()
+        return
+      }
+      graph.connect((samples) => {
+        if (!this.running || this.graph !== graph)
+          return
+        // Stop overload explicitly instead of retaining an unbounded recognition backlog.
+        if (this.queue.length + samples.length > Math.max(sampleRate * 60, count * 2)) {
+          console.error('[artplayerPluginAsr] Audio callback backlog exceeded its capture limit')
+          this.pause()
+          return
+        }
+        this.queue.push(samples)
+      })
+      this.running = true
+      this.timer = setInterval(() => this.tick(count), interval)
+    })().catch(async (error: unknown) => {
+      if (current()) {
+        console.error('[artplayerPluginAsr] Initialization failed:', error)
+        await this.stop()
+      }
+    }).finally(() => {
+      if (this.starting === operation)
+        this.starting = undefined
+    })
+    this.starting = operation
+    return operation
+  }
+
+  private async tick(count: number) {
+    if (!this.running || this.pending)
+      return
+    const samples = this.queue.take(count)
+    if (!samples)
+      return
+    const epoch = this.epoch
+    const pending = this.pending = {}
+    try {
+      const text = await this.options.onAudioChunk(encodeAudio(samples, this.options.sampleRate))
+      if (this.running && !this.terminal && this.epoch === epoch)
+        this.append(text)
+    }
+    catch (error) {
+      if (this.epoch === epoch && !this.terminal)
+        console.error('[artplayerPluginAsr] Audio callback failed:', error)
+    }
+    finally {
+      if (this.pending === pending)
+        this.pending = undefined
+    }
+  }
+
+  volume(value: number) {
+    this.graph?.volume(value)
+  }
+
+  stop(terminal = false) {
+    this.terminal ||= terminal
+    this.pause()
+    const graph = this.graph
+    if (terminal || !graph?.ownsMediaConnection) {
+      this.graph = undefined
+      this.closing = Promise.all([this.closing, graph?.close()]).then(() => undefined)
+    }
+    return this.closing
+  }
+}
diff --git a/packages/artplayer-plugin-asr/src/encoding.ts b/packages/artplayer-plugin-asr/src/encoding.ts
new file mode 100644
index 000000000..b4fb282d8
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/encoding.ts
@@ -0,0 +1,31 @@
+export function encodeAudio(samples: Float32Array, sampleRate: number): { pcm: ArrayBuffer, wav: ArrayBuffer } {
+  const pcm = new ArrayBuffer(samples.length * 2)
+  const pcmView = new DataView(pcm)
+  for (let index = 0; index < samples.length; index++) {
+    const value = Math.max(-1, Math.min(1, samples[index]!))
+    pcmView.setInt16(index * 2, value < 0 ? value * 0x8000 : value * 0x7FFF, true)
+  }
+
+  const wav = new ArrayBuffer(44 + pcm.byteLength)
+  const header = new DataView(wav)
+  function writeString(offset: number, value: string): void {
+    for (let index = 0; index < value.length; index++)
+      header.setUint8(offset + index, value.charCodeAt(index))
+  }
+
+  writeString(0, 'RIFF')
+  header.setUint32(4, 36 + pcm.byteLength, true)
+  writeString(8, 'WAVE')
+  writeString(12, 'fmt ')
+  header.setUint32(16, 16, true)
+  header.setUint16(20, 1, true)
+  header.setUint16(22, 1, true)
+  header.setUint32(24, sampleRate, true)
+  header.setUint32(28, sampleRate * 2, true)
+  header.setUint16(32, 2, true)
+  header.setUint16(34, 16, true)
+  writeString(36, 'data')
+  header.setUint32(40, pcm.byteLength, true)
+  new Uint8Array(wav).set(new Uint8Array(pcm), 44)
+  return { pcm, wav }
+}
diff --git a/packages/artplayer-plugin-asr/src/index.js b/packages/artplayer-plugin-asr/src/index.js
deleted file mode 100644
index c4dd6b136..000000000
--- a/packages/artplayer-plugin-asr/src/index.js
+++ /dev/null
@@ -1,299 +0,0 @@
-import style from './style.less?inline'
-
-export default function artplayerPluginAsr(option = {}) {
-  const {
-    length = 3,
-    interval = 100,
-    sampleRate = 16000,
-    autoHideTimeout = 10000,
-    onAudioChunk = () => null,
-  } = option
-
-  return (art) => {
-    let started = false
-    let audioCtx = null
-    let sourceNode = null
-    let recorderNode = null
-    let gainNode = null
-    let bufferChunks = []
-    let timer = null
-    let workletLoaded = false
-    let hideTimer = null
-    let mediaStream = null
-    let mediaStreamSource = null
-
-    const $asr = art.layers.add({
-      name: 'asr',
-      html: '',
-    })
-
-    function splitByPunctuation(text) {
-      return (
-        text
-
-          .split(/(?<=[、。！？!?.])\s*/u)
-          .map(s => s.trim())
-          .filter(Boolean)
-          .slice(-length)
-      )
-    }
-
-    function hide() {
-      $asr.style.display = 'none'
-    }
-
-    function append(subtitle) {
-      if (typeof subtitle !== 'string')
-        return
-      clearTimeout(hideTimer)
-      hideTimer = setTimeout(hide, autoHideTimeout)
-      $asr.style.display = ''
-      $asr.innerHTML = splitByPunctuation(subtitle)
-        .map(line => `<div class="art-asr-line">${line}</div>`)
-        .join('')
-    }
-
-    const recorderProcessorCode = `
-            class RecorderProcessor extends AudioWorkletProcessor {
-                process(inputs) {
-                    const input = inputs[0];
-                    if (input && input[0]) {
-                        this.port.postMessage(input[0]);
-                    }
-                    return true;
-                }
-            }
-            registerProcessor('recorder-processor', RecorderProcessor);
-        `
-
-    const createWorkletBlobUrl = () => {
-      const blob = new Blob([recorderProcessorCode], { type: 'application/javascript' })
-      return URL.createObjectURL(blob)
-    }
-
-    function floatTo16BitPCM(float32Array) {
-      const len = float32Array.length
-      const buffer = new ArrayBuffer(len * 2)
-      const view = new DataView(buffer)
-      for (let i = 0; i < len; i++) {
-        const s = Math.max(-1, Math.min(1, float32Array[i]))
-        view.setInt16(i * 2, s < 0 ? s * 0x8000 : s * 0x7FFF, true)
-      }
-      return buffer
-    }
-
-    function pcmToWav(pcmBuffer, sampleRate) {
-      const pcmLength = pcmBuffer.byteLength
-      const wavBuffer = new ArrayBuffer(44 + pcmLength)
-      const view = new DataView(wavBuffer)
-
-      const writeString = (offset, str) => {
-        for (let i = 0; i < str.length; i++) {
-          view.setUint8(offset + i, str.charCodeAt(i))
-        }
-      }
-
-      writeString(0, 'RIFF')
-      view.setUint32(4, 36 + pcmLength, true)
-      writeString(8, 'WAVE')
-      writeString(12, 'fmt ')
-      view.setUint32(16, 16, true)
-      view.setUint16(20, 1, true)
-      view.setUint16(22, 1, true)
-      view.setUint32(24, sampleRate, true)
-      view.setUint32(28, sampleRate * 2, true)
-      view.setUint16(32, 2, true)
-      view.setUint16(34, 16, true)
-      writeString(36, 'data')
-      view.setUint32(40, pcmLength, true)
-
-      new Uint8Array(wavBuffer).set(new Uint8Array(pcmBuffer), 44)
-
-      return wavBuffer
-    }
-
-    async function setupAudioContext() {
-      if (audioCtx)
-        return audioCtx
-      audioCtx = new (window.AudioContext || window.webkitAudioContext)({ sampleRate })
-      if (audioCtx.state === 'suspended')
-        await audioCtx.resume()
-      return audioCtx
-    }
-
-    async function setupAudioSource() {
-      if (!sourceNode && art.video) {
-        try {
-          sourceNode = audioCtx.createMediaElementSource(art.video)
-          return sourceNode
-        }
-        catch (err) {
-          console.warn('[artplayerPluginAsr] Direct connection failed:', err)
-        }
-      }
-
-      try {
-        if (!mediaStream) {
-          mediaStream = await captureAudioFromVideo(art.video)
-        }
-        if (mediaStream) {
-          mediaStreamSource = audioCtx.createMediaStreamSource(mediaStream)
-          return mediaStreamSource
-        }
-      }
-      catch (err) {
-        console.warn('[artplayerPluginAsr] MediaStream fallback failed:', err)
-      }
-
-      return null
-    }
-
-    async function captureAudioFromVideo(videoElement) {
-      try {
-        if (videoElement.captureStream)
-          return videoElement.captureStream()
-        if (videoElement.mozCaptureStream)
-          return videoElement.mozCaptureStream()
-        console.warn('[artplayerPluginAsr] captureStream not supported')
-        return null
-      }
-      catch (err) {
-        console.warn('[artplayerPluginAsr] Error capturing stream:', err)
-        return null
-      }
-    }
-
-    async function startCapture() {
-      if (started)
-        return
-
-      try {
-        await setupAudioContext()
-        const audioSource = await setupAudioSource()
-        if (!audioSource)
-          throw new Error('Could not establish audio source')
-
-        if (!workletLoaded) {
-          const blobUrl = createWorkletBlobUrl()
-          await audioCtx.audioWorklet.addModule(blobUrl)
-          URL.revokeObjectURL(blobUrl)
-          workletLoaded = true
-        }
-
-        gainNode = audioCtx.createGain()
-        gainNode.gain.value = 1
-        recorderNode = new AudioWorkletNode(audioCtx, 'recorder-processor')
-        recorderNode.port.onmessage = (event) => {
-          bufferChunks.push(new Float32Array(event.data))
-        }
-        audioSource.connect(recorderNode)
-        audioSource.connect(gainNode)
-        gainNode.connect(audioCtx.destination)
-
-        const CHUNK_SAMPLES = sampleRate * (interval / 1000)
-        timer = setInterval(async () => {
-          if (bufferChunks.length === 0)
-            return
-
-          let accumulated = new Float32Array(0)
-          while (accumulated.length < CHUNK_SAMPLES && bufferChunks.length) {
-            const next = bufferChunks.shift()
-            const tmp = new Float32Array(accumulated.length + next.length)
-            tmp.set(accumulated, 0)
-            tmp.set(next, accumulated.length)
-            accumulated = tmp
-          }
-
-          if (accumulated.length < CHUNK_SAMPLES)
-            return
-
-          const chunkToSend = accumulated.slice(0, CHUNK_SAMPLES)
-          const pcm = floatTo16BitPCM(chunkToSend)
-          const wav = pcmToWav(pcm, sampleRate)
-          const subtitle = await onAudioChunk({ pcm, wav })
-          append(subtitle)
-        }, interval)
-
-        started = true
-      }
-      catch (err) {
-        console.error('[artplayerPluginAsr] Initialization failed:', err)
-        await stopCapture()
-      }
-    }
-
-    async function stopCapture() {
-      if (!started)
-        return
-      started = false
-
-      clearInterval(timer)
-      timer = null
-
-      if (recorderNode) {
-        recorderNode.disconnect()
-        recorderNode.port.onmessage = null
-        recorderNode = null
-      }
-
-      if (gainNode) {
-        gainNode.disconnect()
-        gainNode = null
-      }
-
-      bufferChunks = []
-    }
-
-    async function destroy() {
-      await stopCapture()
-
-      if (mediaStreamSource) {
-        mediaStreamSource.disconnect()
-        mediaStreamSource = null
-      }
-
-      if (sourceNode) {
-        sourceNode.disconnect()
-        sourceNode = null
-      }
-
-      if (mediaStream) {
-        mediaStream.getTracks().forEach(track => track.stop())
-        mediaStream = null
-      }
-
-      if (audioCtx) {
-        await audioCtx.close()
-        audioCtx = null
-      }
-
-      workletLoaded = false
-    }
-
-    art.on('video:volumechange', () => {
-      if (gainNode) {
-        gainNode.gain.value = art.volume
-      }
-    })
-
-    art.on('play', startCapture)
-    art.on('pause', stopCapture)
-    art.on('destroy', destroy)
-
-    return {
-      name: 'artplayerPluginAsr',
-      stop: destroy,
-      hide,
-      append,
-    }
-  }
-}
-
-if (typeof document !== 'undefined') {
-  if (!document.getElementById('artplayer-plugin-asr')) {
-    const $style = document.createElement('style')
-    $style.id = 'artplayer-plugin-asr'
-    $style.textContent = style
-    document.head.appendChild($style)
-  }
-}
diff --git a/packages/artplayer-plugin-asr/src/index.ts b/packages/artplayer-plugin-asr/src/index.ts
new file mode 100644
index 000000000..c51c3be36
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/index.ts
@@ -0,0 +1,46 @@
+import type Artplayer from 'artplayer'
+import type { AsrOptions, AsrResult } from './types'
+import { Capture } from './capture'
+import style from './style.less?inline'
+import { createSubtitles } from './subtitles'
+
+export default function artplayerPluginAsr(option: AsrOptions = {}) {
+  const { length = 3, interval = 100, sampleRate = 16000, autoHideTimeout = 10000, onAudioChunk = () => null } = option
+  return (art: Artplayer): AsrResult => {
+    const layer = art.layers.add({ name: 'asr', html: '' })
+    if (!layer)
+      throw new Error('Could not create ASR subtitle layer')
+    const subtitles = createSubtitles(layer, length, autoHideTimeout)
+    const capture = new Capture(art.video, { interval, sampleRate, onAudioChunk }, subtitles.append)
+    const volume = () => capture.volume(art.volume)
+    const play = () => capture.start()
+    const pause = () => capture.pause()
+    const restart = () => capture.restart()
+    const stop = () => capture.stop()
+    const destroy = () => {
+      subtitles.destroy()
+      art.off('video:volumechange', volume)
+      art.off('play', play)
+      art.off('pause', pause)
+      art.off('restart', restart)
+      art.off('destroy', destroy)
+      return capture.stop(true)
+    }
+    art.on('video:volumechange', volume)
+    art.on('play', play)
+    art.on('pause', pause)
+    art.on('restart', restart)
+    art.on('destroy', destroy)
+    return { name: 'artplayerPluginAsr', stop, hide: subtitles.hide, append: subtitles.append }
+  }
+}
+
+// Published 2.0 CJS consumers used require(...).default; 2.1 exported the function.
+Object.defineProperty(artplayerPluginAsr, 'default', { value: artplayerPluginAsr })
+
+if (typeof document !== 'undefined' && !document.getElementById('artplayer-plugin-asr')) {
+  const styleElement = document.createElement('style')
+  styleElement.id = 'artplayer-plugin-asr'
+  styleElement.textContent = style
+  document.head.appendChild(styleElement)
+}
diff --git a/packages/artplayer-plugin-asr/src/sample-queue.ts b/packages/artplayer-plugin-asr/src/sample-queue.ts
new file mode 100644
index 000000000..c54b8a2f1
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/sample-queue.ts
@@ -0,0 +1,59 @@
+interface SampleBlock {
+  samples: Float32Array
+  next?: SampleBlock
+}
+
+export class SampleQueue {
+  private head?: SampleBlock
+  private tail?: SampleBlock
+  private offset = 0
+  private size = 0
+
+  get length(): number {
+    return this.size
+  }
+
+  push(input: Float32Array): void {
+    if (input.length === 0)
+      return
+    const block: SampleBlock = { samples: new Float32Array(input) }
+    if (this.tail)
+      this.tail.next = block
+    else
+      this.head = block
+    this.tail = block
+    this.size += input.length
+  }
+
+  take(count: number): Float32Array | null {
+    if (!Number.isSafeInteger(count) || count <= 0)
+      throw new RangeError('Sample count must be a positive safe integer')
+    if (count > this.size)
+      return null
+
+    const output = new Float32Array(count)
+    let written = 0
+    while (this.head && written < count) {
+      const samples = this.head.samples
+      const amount = Math.min(samples.length - this.offset, count - written)
+      output.set(samples.subarray(this.offset, this.offset + amount), written)
+      written += amount
+      this.offset += amount
+      if (this.offset === samples.length) {
+        this.head = this.head.next
+        this.offset = 0
+      }
+    }
+    if (!this.head)
+      this.tail = undefined
+    this.size -= count
+    return output
+  }
+
+  clear(): void {
+    this.head = undefined
+    this.tail = undefined
+    this.offset = 0
+    this.size = 0
+  }
+}
diff --git a/packages/artplayer-plugin-asr/src/subtitles.ts b/packages/artplayer-plugin-asr/src/subtitles.ts
new file mode 100644
index 000000000..ddeeda732
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/subtitles.ts
@@ -0,0 +1,37 @@
+export function createSubtitles(layer: HTMLElement, length: number, autoHideTimeout: number) {
+  let timer: ReturnType<typeof setTimeout> | undefined
+  let destroyed = false
+
+  function cancelTimer() {
+    clearTimeout(timer)
+    timer = undefined
+  }
+
+  function hide() {
+    if (!destroyed)
+      layer.style.display = 'none'
+  }
+
+  function append(subtitle: unknown) {
+    if (destroyed || typeof subtitle !== 'string')
+      return
+    cancelTimer()
+    timer = setTimeout(hide, autoHideTimeout)
+    layer.style.display = ''
+    layer.innerHTML = subtitle.split(/(?<=[、。！？!?.])\s*/u)
+      .map(line => line.trim())
+      .filter(Boolean)
+      .slice(-length)
+      .map(line => `<div class="art-asr-line">${line}</div>`)
+      .join('')
+  }
+
+  return {
+    append,
+    hide,
+    destroy() {
+      destroyed = true
+      cancelTimer()
+    },
+  }
+}
diff --git a/packages/artplayer-plugin-asr/src/types.ts b/packages/artplayer-plugin-asr/src/types.ts
new file mode 100644
index 000000000..02afd3366
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/types.ts
@@ -0,0 +1,30 @@
+export interface AudioChunk {
+  pcm: ArrayBuffer
+  wav: ArrayBuffer
+}
+
+export interface AsrOptions {
+  length?: number
+  interval?: number
+  sampleRate?: number
+  autoHideTimeout?: number
+  onAudioChunk?: (chunk: AudioChunk) => unknown
+}
+
+export interface AsrResult {
+  name: 'artplayerPluginAsr'
+  stop: () => Promise<void>
+  hide: () => void
+  append: (subtitle: string) => void
+}
+
+export interface CaptureVideo extends HTMLVideoElement {
+  captureStream?: () => MediaStream
+  mozCaptureStream?: () => MediaStream
+}
+
+export interface CaptureOptions {
+  interval: number
+  sampleRate: number
+  onAudioChunk: (chunk: AudioChunk) => unknown
+}
diff --git a/packages/artplayer-plugin-asr/src/worklet.ts b/packages/artplayer-plugin-asr/src/worklet.ts
new file mode 100644
index 000000000..df9325b7a
--- /dev/null
+++ b/packages/artplayer-plugin-asr/src/worklet.ts
@@ -0,0 +1,12 @@
+export const recorderProcessorCode = `
+class RecorderProcessor extends AudioWorkletProcessor {
+    process(inputs) {
+        const input = inputs[0];
+        if (input && input[0]) {
+            this.port.postMessage(input[0]);
+        }
+        return true;
+    }
+}
+registerProcessor('recorder-processor', RecorderProcessor);
+`
diff --git a/packages/artplayer-plugin-asr/tsconfig.json b/packages/artplayer-plugin-asr/tsconfig.json
new file mode 100644
index 000000000..c9218405d
--- /dev/null
+++ b/packages/artplayer-plugin-asr/tsconfig.json
@@ -0,0 +1,5 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": { "allowJs": false },
+  "include": ["src/**/*.ts", "types/**/*.d.ts", "../../types/assets.d.ts"]
+}
diff --git a/refactor/baselines/asr-ownership-validation.json b/refactor/baselines/asr-ownership-validation.json
new file mode 100644
index 000000000..2b133c9a8
--- /dev/null
+++ b/refactor/baselines/asr-ownership-validation.json
@@ -0,0 +1,1361 @@
+{
+  "schemaVersion": 1,
+  "task": "PKG-ASR-03",
+  "capturedAt": "2026-09-13T06:43:08.711Z",
+  "baseCommit": "53c295819db004e507b35689a7bdec1955e08396",
+  "production": {
+    "language": "TypeScript",
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "modules": 8,
+    "publicDeclarationChanged": false,
+    "dependenciesAdded": [],
+    "versionChanged": false
+  },
+  "unit": {
+    "historicalPublic": 28,
+    "historicalAudio": 133,
+    "provenance": 4,
+    "pureAudio": 20,
+    "candidateLifecycle": 25,
+    "distribution": 2,
+    "totalFocused": 212,
+    "repeatedCandidateArtifacts": {
+      "main": 25,
+      "legacy": 25
+    },
+    "candidateRed": {
+      "retiredPortAfterPauseResume": "Expected new negative PCM but received old positive PCM; fixed recorder identity check"
+    }
+  },
+  "browsers": [
+    {
+      "mode": "source",
+      "passed": 12,
+      "skipped": 6,
+      "file": "refactor/.cache/asr03-browser-source-final-v3/report.json",
+      "sha256": "eb3bcf40ad36448e553c98a9b42988b9a417a231056f2067530cde5b4b7b0638",
+      "rows": [
+        {
+          "title": "ASR 2.0.0 + published: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "chromium",
+          "status": "passed",
+          "browser": "153.0.8010.12",
+          "inputs": {
+            "version": "2.0.0",
+            "core": "published",
+            "pluginSha256": "30c7b1fc92a262cda8c3aba63afea9c6c038f52c057039d1c6aa957baed155b6",
+            "integrity": "sha512-nXTf2drMSKnHRbyU9CQ+3o7Jsf1Meam2O9T8LqYakIr18ag/+i71p2x9zdFrLz16Xa6jfQgKeddmU5r3sXp4LA==",
+            "candidate": "workspace source",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "function",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "function"
+          },
+          "core": {
+            "source": {
+              "kind": "npm-release",
+              "version": "5.4.0",
+              "integrity": "sha512-2B+plbx8N2yNsjK4nJU3+EOG8TULm1LRZk/QPkWRAMEX2Ee/MSnZG/WJYz8kcoZxZuLKcQ3uXifqLuPxZOH29A==",
+              "member": "package/dist/artplayer.js"
+            },
+            "sha256": "f1db1fa3406aa6d41baa7c554749429a8e79f99d56a794bde23345eb9c07573f",
+            "bytes": 134037
+          },
+          "audio": {
+            "chunks": 4,
+            "nonzero": 4,
+            "sources": [
+              "http://127.0.0.1:8084/test/audio-tone.m4a"
+            ],
+            "sha256": "a47709732484a2565af8014af97f2b3c953f5a0d5ac424fbbb00df4210f75382"
+          },
+          "annotations": []
+        },
+        {
+          "title": "ASR 2.0.0 + candidate: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "chromium",
+          "status": "passed",
+          "browser": "153.0.8010.12",
+          "inputs": {
+            "version": "2.0.0",
+            "core": "candidate",
+            "pluginSha256": "30c7b1fc92a262cda8c3aba63afea9c6c038f52c057039d1c6aa957baed155b6",
+            "integrity": "sha512-nXTf2drMSKnHRbyU9CQ+3o7Jsf1Meam2O9T8LqYakIr18ag/+i71p2x9zdFrLz16Xa6jfQgKeddmU5r3sXp4LA==",
+            "candidate": "workspace source",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "function",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "function"
+          },
+          "core": {
+            "source": {
+              "kind": "workspace-build",
+              "entry": "packages\\artplayer\\src\\index.ts"
+            },
+            "sha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242",
+            "bytes": 378117
+          },
+          "audio": {
+            "chunks": 3,
+            "nonzero": 3,
+            "sources": [
+              "http://127.0.0.1:8084/test/audio-tone.m4a"
+            ],
+            "sha256": "246313154c06084282eaf7b3df6f83d89974e1997582adc19e83574119a8eba4"
+          },
+          "annotations": []
+        },
+        {
+          "title": "ASR 2.1.0 + published: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "chromium",
+          "status": "passed",
+          "browser": "153.0.8010.12",
+          "inputs": {
+            "version": "2.1.0",
+            "core": "published",
+            "pluginSha256": "7f975b131a9ea207f88a157aafec778bc4906230500db9b30f5bbfbf327b251d",
+            "integrity": "sha512-15gXff458PAx9LeJxKzZEvmpFhfwKUfSLgb1Mfr7Xb/ZGsnE+6EA7ezTnO5S55W5mFExjv/e95iOIXP4ijuruQ==",
+            "candidate": "workspace source",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "function",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "function"
+          },
+          "core": {
+            "source": {
+              "kind": "npm-release",
+              "version": "5.4.0",
+              "integrity": "sha512-2B+plbx8N2yNsjK4nJU3+EOG8TULm1LRZk/QPkWRAMEX2Ee/MSnZG/WJYz8kcoZxZuLKcQ3uXifqLuPxZOH29A==",
+              "member": "package/dist/artplayer.js"
+            },
+            "sha256": "f1db1fa3406aa6d41baa7c554749429a8e79f99d56a794bde23345eb9c07573f",
+            "bytes": 134037
+          },
+          "audio": {
+            "chunks": 4,
+            "nonzero": 4,
+            "sources": [
+              "http://127.0.0.1:8084/test/audio-tone.m4a"
+            ],
+            "sha256": "febb5fd96895faffdab64891ca035bed5af27add24d5a7af690b74861bce1b32"
+          },
+          "annotations": []
+        },
+        {
+          "title": "ASR 2.1.0 + candidate: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "chromium",
+          "status": "passed",
+          "browser": "153.0.8010.12",
+          "inputs": {
+            "version": "2.1.0",
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+            "sha256": "f1db1fa3406aa6d41baa7c554749429a8e79f99d56a794bde23345eb9c07573f",
+            "bytes": 134037
+          },
+          "audio": {
+            "chunks": 18,
+            "nonzero": 17,
+            "sources": [
+              "http://127.0.0.1:8084/test/audio-tone.m4a",
+              "http://127.0.0.1:8084/test/audio-tone.m4a?asr=second"
+            ],
+            "sha256": "a4af9fb4921b3b2d7d0b0d3452c5ffa4a59652135d7ad1b2dd2a7f3bab0bf783"
+          },
+          "annotations": []
+        },
+        {
+          "title": "ASR candidate + candidate: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "firefox",
+          "status": "passed",
+          "browser": "155.0",
+          "inputs": {
+            "version": "candidate",
+            "core": "candidate",
+            "pluginSha256": "c36ebbea3a4e5f30b2736ffb6a964d45e330b0911f51e32d9cab44397ec16912",
+            "integrity": null,
+            "candidate": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "function",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "function"
+          },
+          "core": {
+            "source": {
+              "kind": "workspace-build",
+              "entry": "packages\\artplayer\\src\\index.ts"
+            },
+            "sha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242",
+            "bytes": 378117
+          },
+          "audio": {
+            "chunks": 17,
+            "nonzero": 16,
+            "sources": [
+              "http://127.0.0.1:8084/test/audio-tone.m4a",
+              "http://127.0.0.1:8084/test/audio-tone.m4a?asr=second"
+            ],
+            "sha256": "4728408786921fae730cc16acd442bc95af3349f59905491896e56b3d590667c"
+          },
+          "annotations": []
+        },
+        {
+          "title": "ASR candidate + published: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "webkit",
+          "status": "skipped",
+          "browser": "26.6",
+          "inputs": {
+            "version": "candidate",
+            "core": "published",
+            "pluginSha256": "c36ebbea3a4e5f30b2736ffb6a964d45e330b0911f51e32d9cab44397ec16912",
+            "integrity": null,
+            "candidate": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "undefined",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "undefined"
+          },
+          "core": {
+            "source": {
+              "kind": "npm-release",
+              "version": "5.4.0",
+              "integrity": "sha512-2B+plbx8N2yNsjK4nJU3+EOG8TULm1LRZk/QPkWRAMEX2Ee/MSnZG/WJYz8kcoZxZuLKcQ3uXifqLuPxZOH29A==",
+              "member": "package/dist/artplayer.js"
+            },
+            "sha256": "f1db1fa3406aa6d41baa7c554749429a8e79f99d56a794bde23345eb9c07573f",
+            "bytes": 134037
+          },
+          "audio": {
+            "chunks": 0,
+            "nonzero": 0,
+            "sources": [],
+            "sha256": "4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945"
+          },
+          "annotations": [
+            {
+              "type": "skip",
+              "description": "Windows WebKit 26.6 has no AudioContext/AudioWorkletNode; native ASR acceptance remains open",
+              "location": {
+                "file": "D:\\github\\ArtPlayer\\test\\browser\\asr-audio.spec.js",
+                "line": 30,
+                "column": 14
+              }
+            }
+          ]
+        },
+        {
+          "title": "ASR candidate + candidate: native Worklet supplies local PCM with owned stop and destroy",
+          "project": "webkit",
+          "status": "skipped",
+          "browser": "26.6",
+          "inputs": {
+            "version": "candidate",
+            "core": "candidate",
+            "pluginSha256": "c36ebbea3a4e5f30b2736ffb6a964d45e330b0911f51e32d9cab44397ec16912",
+            "integrity": null,
+            "candidate": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js",
+            "mediaSha256": "83e6672b880b5d1c97093b1e26bdc40221c0b279615f40e99dbf9d2ade7b4d56",
+            "media": "local mono AAC 440 Hz tone",
+            "networkService": false
+          },
+          "capabilities": {
+            "AudioContext": "undefined",
+            "webkitAudioContext": "undefined",
+            "AudioWorkletNode": "undefined"
+          },
+          "core": {
+            "source": {
+              "kind": "workspace-build",
+              "entry": "packages\\artplayer\\src\\index.ts"
+            },
+            "sha256": "d9aeee649395b78eb30b38dcaefb3c19c731c21b08e356485bac7cda08ead242",
+            "bytes": 378117
+          },
+          "audio": {
+            "chunks": 0,
+            "nonzero": 0,
+            "sources": [],
+            "sha256": "4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945"
+          },
+          "annotations": [
+            {
+              "type": "skip",
+              "description": "Windows WebKit 26.6 has no AudioContext/AudioWorkletNode; native ASR acceptance remains open",
+              "location": {
+                "file": "D:\\github\\ArtPlayer\\test\\browser\\asr-audio.spec.js",
+                "line": 30,
+                "column": 14
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "artifacts": [
+    {
+      "file": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.js",
+      "sha256": "533b60d6348764fa460c2436cc1197b95544051fb4d1ec4d950fec9f88e1c5cb",
+      "bytes": 8862,
+      "docsCopyIdentical": true
+    },
+    {
+      "file": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.legacy.js",
+      "sha256": "c36ebbea3a4e5f30b2736ffb6a964d45e330b0911f51e32d9cab44397ec16912",
+      "bytes": 9357,
+      "docsCopyIdentical": true
+    },
+    {
+      "file": "packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs",
+      "sha256": "751201241a848cdc26235334ce7603b174a90bf4ac793ff3f85182b1783f6996",
+      "bytes": 13311,
+      "docsCopyIdentical": true
+    }
+  ],
+  "nativeStopCorrection": {
+    "before": {
+      "file": "refactor/.cache/asr03-browser-restart-before/report.json",
+      "passed": 2,
+      "failed": 2,
+      "skipped": 2,
+      "observation": "Chromium both cores did not resume nonzero PCM after direct context close; Firefox did."
+    },
+    "after": "Direct player-owned audio route remains until terminal destroy; stop/restart reuses one context. Final source/main/legacy browser cases all pass on Chromium and Firefox.",
+    "semantics": "Internal context ownership changed; Promise stop, stopped recognizer and later play remain public behavior."
+  },
+  "limitation": [
+    "Windows WebKit 26.6 native WebAudio unsupported; not Safari/device evidence.",
+    "Installed public TS/module consumers remain PKG-ASR-04.",
+    "Native captured fallback topology, volume/mute, CORS and device matrix remain PKG-ASR-05.",
+    "Queue overload explicitly stops capture after the larger of 60 seconds or two configured chunks; existing subtitles keep their hide deadline; caller cancellation is outside plugin ownership."
+  ],
+  "fullCiRun": false,
+  "releaseReady": false
+}
diff --git a/refactor/changes/2026-09-13-PKG-ASR-03-audio-ownership.md b/refactor/changes/2026-09-13-PKG-ASR-03-audio-ownership.md
new file mode 100644
index 000000000..e54504344
--- /dev/null
+++ b/refactor/changes/2026-09-13-PKG-ASR-03-audio-ownership.md
@@ -0,0 +1,62 @@
+# PKG-ASR-03：拆分 ASR 并修复音频归属
+
+从 53c295819db004e507b35689a7bdec1955e08396 开始，将单个生产 JS 文件拆成
+8 个严格 TypeScript 模块。公共声明不在本任务改写，ASYNC/旧工厂类型与实际安装
+消费者仍由 PKG-ASR-04 验收。无新依赖，版本不变，正常构建生成三格式及 docs 副本。
+
+## 结构改动
+
+index 只承担工厂、事件和兼容门面；subtitles 管字幕和隐藏定时器；capture 管代际、
+初始化、节拍和回调；audio-graph 管浏览器节点；encoding/sample-queue/worklet
+分离纯数据与处理器边界。完整维护地图在包内 ARCHITECTURE.md。
+
+## 独立列明的缺陷修正
+
+- 链式块队列保留不足块及尾部，复制输入且避免重复 concat/shift。编码与 7 个
+  历史实现逐字节匹配。每个活动代际只允许一个识别回调，拒绝被捕获且后续可继续。
+- 暂停/切源/停止/终止使旧结果失效；旧结果不会解锁新回调。退休 recorder 的
+  消息即使已经被外部保留也被身份检查拒绝。首次候选回归发现此消息竞态后修复。
+- 初始化去重，取消后不晚建录音图；Worklet URL 在成功、失败和终止路径释放。
+  Worklet 模块先准备再绑定 video，失败不会先接管并关闭视频的播放通路。
+- stop 清录音/识别任务，保持可再次播放；已有字幕保留原自动隐藏期限，与历史版一致，
+  并拒绝旧识别结果新建隐藏任务。直接绑定视频的 context/source/
+  播放 gain 由播放器持有，直到 art.destroy 才关闭；pause/stop 保持播放路由。
+  捕获流 fallback 属于可释放的采集资源，stop 关闭；切源时重新取得流与音轨。
+- destroy 清监听器、节点、流、timer，并禁止通过保留的 append 引用复活。
+- 慢回调超过队列上限时明确报错并暂停采集，播放路由保留。上限取 60 秒与两个配置块
+  长度的较大值，以支持原本合法的长 interval；有超过 60 秒配置块的回归。不会无限缓存，
+  也不声称过载时音频无损；调用者网络请求仍由调用者负责取消。
+- 工厂补不可枚举的自引用 default，兼容 2.0 的 require(...).default 及 2.1 的
+  require(...) 函数路径；保留键顺序、同步注册、选项快照、字幕 HTML/CSS 行为。
+
+## 为什么 stop 不再关闭 direct context
+
+实际 Chromium 在 close 后经 capture fallback 重启时无法得到非零 PCM；两个核心
+组合失败，Firefox 两组合通过。原生探测报告保留在证据文件中，没有把能力失败
+抹成通过。Web Audio 规定绑定后的媒体声音走节点图，close 会忽略关联媒体输出；
+关闭后不能简单重新绑定节点来恢复。用户公开 stop/play 用法需要可靠恢复，因此
+修正内部生命周期，而不删除重启测试或更改公开方法。
+
+子代理独立复核了 [Web Audio close](https://www.w3.org/TR/webaudio-1.0/#dom-audiocontext-close)、
+[媒体源节点](https://www.w3.org/TR/webaudio-1.0/#MediaElementAudioSourceNode)及
+[捕获流切源](https://www.w3.org/TR/mediacapture-fromelement/#html-media-element-media-capture-extensions)。
+保留 direct-first，避免把采样语义和兼容范围改成尚未全面支持的 capture-first。
+旧版 close 行为在 ASR-02 历史测试中保留；候选测试要求停止后有播放路由、同一
+context 恢复非零 PCM，最终销毁才关闭。初始化尚未绑定 video 时仍立即完整关闭。
+
+## 验证与剩余范围
+
+源代码分包 strict/noUncheckedIndexedAccess、定向 ESLint、正常 main/legacy/ESM
+构建通过。历史/纯模块/候选共 210 项，真实 ESM 与副本校验另 2 项；main 与 legacy
+各重跑 25 项候选生命周期。浏览器源码全组 12 通过/6 Windows WebKit 能力跳过，
+main/legacy 候选各 4 通过/2 能力跳过；没有 failed/flaky。
+具体输入哈希、报告、构建与浏览器版本见 [验证记录](../baselines/asr-ownership-validation.json)。
+
+浏览器实际验证：两核心、非零 PCM/WAV、本地回调字幕、暂停恢复、同视频切源、
+stop 后恢复及最终 context 关闭。Windows WebKit 无 WebAudio，不能代表 macOS Safari；
+真实 fallback 音轨拓扑、音量/静音、跨源媒体、设备仍归 ASR-05。ASR-04 的公共类型和
+实际包安装、ASR-06 的示例及发行文档仍未完成，本记录不表示整包已可发布。
+
+仅运行本包、类型、构建和台账检查，未重复整仓全量 CI。两次子代理承担纯音频模块/
+回归与规范审查，主代理负责图与控制器集成、浏览器、文档及提交。每项职责已核对。
+回退本任务提交可恢复旧源码及构建产物，但会同时恢复已复现丢样本和生命周期缺陷。
diff --git a/refactor/plan.md b/refactor/plan.md
index 9efe68b5b..c7ee6c3b6 100644
--- a/refactor/plan.md
+++ b/refactor/plan.md
@@ -4,7 +4,7 @@
 
 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 225 项，范围 22 个包及工作区/示例。
 
-状态：todo 84 / doing 16 / blocked 0 / done 125 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 83 / doing 16 / blocked 0 / done 126 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -253,7 +253,7 @@
 | --- | --- | --- | --- | --- | --- | --- |
 | PKG-ASR-01 | artplayer-plugin-asr<br>核对包契约与历史用法 | BASE-05 | length/interval/sampleRate/onAudioChunk、append/hide/stop 的真实能力 | 源码/声明/README/demo/发布包差异已登记；公开形状和版本范围冻结 | H | done |
 | PKG-ASR-02 | artplayer-plugin-asr<br>建立特有行为与错误测试 | PKG-ASR-01, ENG-03, ENG-05 | PCM/WAV、chunk 时序、回调慢/拒绝、重复初始化与停止 | 旧版本行为可重跑，成功/失败/切源/销毁有必要断言 | H | done |
-| PKG-ASR-03 | artplayer-plugin-asr<br>整理内部职责与资源 | PKG-ASR-02, CORE-10, CORE-18 | AudioContext/Worklet/Stream 生命周期和背压分离 | 结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过 | H | todo |
+| PKG-ASR-03 | artplayer-plugin-asr<br>整理内部职责与资源 | PKG-ASR-02, CORE-10, CORE-18 | AudioContext/Worklet/Stream 生命周期和背压分离 | 结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过 | H | done |
 | PKG-ASR-04 | artplayer-plugin-asr<br>迁移自有源码和公开类型 | PKG-ASR-03, ENG-04, ENG-06, CORE-07 | 主线程/Worklet/音频 buffer 与异步回调类型 | 严格类型检查、旧消费样例通过；声明路径/导出和同步异步兼容 | H | todo |
 | PKG-ASR-05 | artplayer-plugin-asr<br>验证新旧核心和组合 | PKG-ASR-04, CORE-22 | 真实 WebAudio 分块、播放暂停/切源/销毁，不引入网络 ASR | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | H | todo |
 | PKG-ASR-06 | artplayer-plugin-asr<br>验证分发并同步文档 | PKG-ASR-05, ENG-07 | asr.js、Worklet 资源、输出格式与声明证据 | tarball 入口/资源、类型、8082 demo 和 README 一致，有回退记录 | H | todo |
@@ -528,6 +528,7 @@
 - PKG-JASSUB-01: [记录](baselines/jassub-release.json) [记录](baselines/jassub-vendor.json) [记录](baselines/jassub-font-metadata.json) [记录](baselines/jassub-contract.md) [记录](baselines/jassub-contract-validation.json) [记录](changes/2026-09-13-PKG-JASSUB-01-baseline.md)
 - PKG-ASR-01: [记录](changes/2026-09-13-PKG-ASR-01-contracts.md) [记录](baselines/asr-contract.md) [记录](baselines/asr-release.json)
 - PKG-ASR-02: [记录](changes/2026-09-13-PKG-ASR-02-audio-baseline.md) [记录](baselines/asr-audio-validation.json)
+- PKG-ASR-03: [记录](changes/2026-09-13-PKG-ASR-03-audio-ownership.md) [记录](baselines/asr-ownership-validation.json)
 - PKG-ADS-01: [记录](baselines/ads-release.json) [记录](baselines/ads-contract.md) [记录](baselines/ads-contract-validation.json) [记录](changes/2026-09-12-PKG-ADS-01-contract.md) [记录](scripts/ads-contract.test.mjs)
 - PKG-ADS-02: [记录](changes/2026-09-12-PKG-ADS-02-tests.md) [记录](ads-validation.md) [记录](baselines/ads-validation.json)
 - PKG-ADS-03: [记录](changes/2026-09-12-PKG-ADS-03-lifecycle.md) [记录](ads-validation.md) [记录](baselines/ads-lifecycle-validation.json)
diff --git a/refactor/progress.md b/refactor/progress.md
index 6d2f2d278..aaa999a03 100644
--- a/refactor/progress.md
+++ b/refactor/progress.md
@@ -1,5 +1,20 @@
 # 进度与证据
 
+## PKG-ASR-03 TS 拆分与音频生命周期完成
+
+生产源码拆为 8 个严格 TS 模块；队列保留半块/尾部，识别回调背压、拒绝恢复、
+初始化去重和代际清理完成。退休 Worklet 消息反例由失败转通过。
+Chromium stop 后不能恢复的原生问题已修复：直接媒体路由由播放器持有到 destroy，
+stop 只停 ASR 并允许重新播放；先准备 Worklet 后绑定视频，失败可真正释放未绑定 context。
+定向 212 项通过，main/legacy 各重跑 25 候选项；严格分包 tsc、lint、正常三格式构建通过。
+最终浏览器源码 12 过/6 能力跳过，main/legacy 各 4 过/2 能力跳过；共 20 过、10 明确
+Windows WebKit 无 WebAudio 跳过。非零 PCM、暂停、切源、stop 重启与 destroy 已实测。
+见[变更](changes/2026-09-13-PKG-ASR-03-audio-ownership.md)和[证据](baselines/asr-ownership-validation.json)。
+225 项：126 done、16 doing、83 todo；205 风险，两项 ASR 音频风险闭环。
+下一步 ASR-04 公共异步类型与安装消费者；完整设备/fallback/音量和发行仍未完成。
+没有重复全量 CI、没有推送或发布。子代理承担独立模块/测试和规范审查，主代理集成验收。
+
+
 ## PKG-ASR-02 音频与错误基线完成
 
 子代理交付并由主代理审查的 133 项音频历史测试通过，连同公开契约/来源共 165 项。
diff --git a/refactor/risk-table.md b/refactor/risk-table.md
index 51d9d0679..da7acd235 100644
--- a/refactor/risk-table.md
+++ b/refactor/risk-table.md
@@ -207,5 +207,5 @@
 | CORE-DEFAULTS-SSR-01 | resolved / 已复现 | Reading static defaults throws when navigator is absent | CORE-25 |
 | ENG-DIST-PUBLIC-01 | resolved / 已复现 | Vite copied authored declarations into library distribution | ENG-12 |
 | ASR-TYPE-01 | open / 源码/产物事实 | ASR declarations omit asynchronous stop and callback text results | PKG-ASR-04 |
-| ASR-CHUNK-01 | open / 已复现 | ASR tick discards underfilled chunks and overrun samples in source | PKG-ASR-02, PKG-ASR-03 |
-| ASR-LIFE-01 | open / 已复现 | ASR partial initialization, pause resume and stale callback cleanup need controlled evidence | PKG-ASR-02, PKG-ASR-03, PKG-ASR-05 |
+| ASR-CHUNK-01 | resolved / 已复现 | ASR tick discards underfilled chunks and overrun samples in source | PKG-ASR-02, PKG-ASR-03 |
+| ASR-LIFE-01 | resolved / 已复现 | ASR partial initialization, pause resume and stale callback cleanup need controlled evidence | PKG-ASR-02, PKG-ASR-03, PKG-ASR-05 |
diff --git a/refactor/risks.json b/refactor/risks.json
index b450d3ec4..e11ca9a0d 100644
--- a/refactor/risks.json
+++ b/refactor/risks.json
@@ -798,7 +798,7 @@
         "EX-03"
       ],
       "evidence": [
-        "packages/artplayer-plugin-asr/src/index.js",
+        "packages/artplayer-plugin-asr/src/index.ts",
         "docs/assets/example/asr.js"
       ],
       "compatibleResolution": "Core plugin supplies PCM to caller onAudioChunk. Example fetches an external ASR endpoint and opens its returned WebSocket; not an embedded ASR SDK or a verified service.",
@@ -4561,7 +4561,7 @@
       "id": "ASR-CHUNK-01",
       "title": "ASR tick discards underfilled chunks and overrun samples in source",
       "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
       "owners": [
         "PKG-ASR-02",
         "PKG-ASR-03"
@@ -4574,13 +4574,20 @@
         "refactor/baselines/asr-audio-validation.json"
       ],
       "compatibleResolution": "Reproduce exact sample loss and retain queue remainders with bounded, ordered callback delivery.",
-      "closureCriteria": "Exact PCM/WAV byte sequence and slow/rejected callback regression tests pass without losing or reordering accepted input."
+      "closureCriteria": "Exact PCM/WAV byte sequence and slow/rejected callback regression tests pass without losing or reordering accepted input.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-PKG-ASR-03-audio-ownership.md",
+        "refactor/baselines/asr-ownership-validation.json",
+        "test/asr-lifecycle.test.js",
+        "test/asr-encoding.test.js"
+      ],
+      "resolutionRationale": "Copied linked blocks retain underfilled input and tails; exact byte parity and FIFO tests pass. One callback per generation prevents overlap; rejection recovery and obsolete completions are covered. Exceeding the larger of 60 seconds or two configured chunks pauses capture with an explicit error; long configured intervals remain collectable."
     },
     {
       "id": "ASR-LIFE-01",
       "title": "ASR partial initialization, pause resume and stale callback cleanup need controlled evidence",
       "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
       "owners": [
         "PKG-ASR-02",
         "PKG-ASR-03",
@@ -4594,7 +4601,14 @@
         "refactor/baselines/asr-audio-validation.json"
       ],
       "compatibleResolution": "Own pending setup, URLs, source nodes and callbacks across pause, stop, restart and terminal destruction.",
-      "closureCriteria": "Failure/race regression tests plus native WebAudio playback and cleanup evidence prove resource ownership."
+      "closureCriteria": "Failure/race regression tests plus native WebAudio playback and cleanup evidence prove resource ownership.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-PKG-ASR-03-audio-ownership.md",
+        "refactor/baselines/asr-ownership-validation.json",
+        "test/asr-lifecycle.test.js",
+        "test/asr-encoding.test.js"
+      ],
+      "resolutionRationale": "Candidate ownership/race regression tests pass, including retired-port delivery and module failure before binding video. Actual Chromium/Firefox source/main/legacy with both cores verify pause, source change, explicit stop/restart and final close. Direct media contexts deliberately remain player-owned until destroy; disposable stream contexts close on stop. General native fallback/volume/device acceptance remains ASR-05 and SDK-11, not claimed by this specific fix."
     }
   ]
 }
diff --git a/refactor/tasks.json b/refactor/tasks.json
index b468ecf9e..0b70fd2f7 100644
--- a/refactor/tasks.json
+++ b/refactor/tasks.json
@@ -2660,11 +2660,14 @@
         "CORE-10",
         "CORE-18"
       ],
-      "status": "todo",
+      "status": "done",
       "risk": "H",
       "deliverable": "AudioContext/Worklet/Stream 生命周期和背压分离",
       "acceptance": "结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-13-PKG-ASR-03-audio-ownership.md",
+        "baselines/asr-ownership-validation.json"
+      ]
     },
     {
       "id": "PKG-ASR-04",
diff --git a/refactor/third-party.json b/refactor/third-party.json
index b18cb202d..f6c1eaede 100644
--- a/refactor/third-party.json
+++ b/refactor/third-party.json
@@ -1240,7 +1240,7 @@
         "EX-03"
       ],
       "sourceFiles": [
-        "packages/artplayer-plugin-asr/src/index.js",
+        "packages/artplayer-plugin-asr/src/index.ts",
         "docs/assets/example/asr.js"
       ],
       "contract": "Core plugin supplies PCM to caller onAudioChunk. Example fetches an external ASR endpoint and opens its returned WebSocket; not an embedded ASR SDK or a verified service.",
diff --git a/test/asr-distribution.test.js b/test/asr-distribution.test.js
new file mode 100644
index 000000000..07cfb082b
--- /dev/null
+++ b/test/asr-distribution.test.js
@@ -0,0 +1,34 @@
+import assert from 'node:assert/strict'
+import fs from 'node:fs'
+// eslint-disable-next-line test/no-import-node-test -- Actual ASR distribution imports use the repository runner.
+import test from 'node:test'
+
+test('ASR built ESM imports without DOM and keeps both factory paths and synchronous registration', async () => {
+  const module = await import('../packages/artplayer-plugin-asr/dist/artplayer-plugin-asr.mjs')
+  assert.deepEqual(Object.keys(module), ['default'])
+  assert.equal(module.default.default, module.default)
+  assert.deepEqual(Object.keys(module.default), [])
+  const events = new Map()
+  const layer = { style: {}, innerHTML: '' }
+  const result = module.default({ length: 1 })({
+    video: {},
+    volume: 0.5,
+    layers: { add: () => layer },
+    on: (name, callback) => events.set(name, callback),
+    off: name => events.delete(name),
+  })
+  assert.equal(result.then, undefined)
+  assert.deepEqual(Object.keys(result), ['name', 'stop', 'hide', 'append'])
+  result.append('One. <b>Two</b>')
+  assert.equal(layer.innerHTML, '<div class="art-asr-line"><b>Two</b></div>')
+  await result.stop()
+  await events.get('destroy')()
+  assert.equal(events.size, 0)
+})
+
+test('ASR three generated package artifacts exactly match the demo copies', () => {
+  for (const suffix of ['js', 'legacy.js', 'mjs']) {
+    const name = `artplayer-plugin-asr.${suffix}`
+    assert.deepEqual(fs.readFileSync(`packages/artplayer-plugin-asr/dist/${name}`), fs.readFileSync(`docs/compiled/${name}`))
+  }
+})
diff --git a/test/asr-encoding.test.js b/test/asr-encoding.test.js
new file mode 100644
index 000000000..2408fc8f2
--- /dev/null
+++ b/test/asr-encoding.test.js
@@ -0,0 +1,183 @@
+import assert from 'node:assert/strict'
+import { Buffer } from 'node:buffer'
+// eslint-disable-next-line test/no-import-node-test -- Pure ASR audio modules use the repository runner.
+import test from 'node:test'
+import { asrAudioEnvironment, runAsrWorklet } from './helpers/asr-audio.js'
+import { asrHistorical } from './helpers/asr.js'
+import { loadModules } from './helpers/load.js'
+
+const root = 'packages/artplayer-plugin-asr/src'
+const { encodeAudio, SampleQueue, recorderProcessorCode } = await loadModules({
+  encodeAudio: { file: `${root}/encoding`, name: 'encodeAudio' },
+  SampleQueue: { file: `${root}/sample-queue`, name: 'SampleQueue' },
+  recorderProcessorCode: { file: `${root}/worklet`, name: 'recorderProcessorCode' },
+})
+
+test('ASR encoder preserves signed PCM16 clamping, truncation, NaN and little endian bytes', () => {
+  const input = Float32Array.of(-Infinity, -2, -1, -0.5, -0, 0, 0.5, 1, 2, Infinity, Number.NaN)
+  const encoded = encodeAudio(input, 16000)
+  assert.deepEqual(Object.keys(encoded), ['pcm', 'wav'])
+  const expected = [0, 128, 0, 128, 0, 128, 0, 192, 0, 0, 0, 0, 255, 63, 255, 127, 255, 127, 255, 127, 0, 0]
+  assert.deepEqual([...new Uint8Array(encoded.pcm)], expected)
+  assert.equal(input[0], -Infinity)
+  assert.equal(Number.isNaN(input.at(-1)), true)
+})
+
+for (const sampleRate of [8000, 16000, 44100, 48000]) {
+  test(`ASR encoder writes exact mono WAV metadata at ${sampleRate} Hz`, () => {
+    const { pcm, wav } = encodeAudio(Float32Array.of(-1, 0, 1), sampleRate)
+    const data = Buffer.from(wav)
+    assert.equal(pcm.byteLength, 6)
+    assert.equal(data.length, 50)
+    assert.equal(data.toString('ascii', 0, 4), 'RIFF')
+    assert.equal(data.readUInt32LE(4), 42)
+    assert.equal(data.toString('ascii', 8, 16), 'WAVEfmt ')
+    assert.equal(data.readUInt32LE(16), 16)
+    assert.equal(data.readUInt16LE(20), 1)
+    assert.equal(data.readUInt16LE(22), 1)
+    assert.equal(data.readUInt32LE(24), sampleRate)
+    assert.equal(data.readUInt32LE(28), sampleRate * 2)
+    assert.equal(data.readUInt16LE(32), 2)
+    assert.equal(data.readUInt16LE(34), 16)
+    assert.equal(data.toString('ascii', 36, 40), 'data')
+    assert.equal(data.readUInt32LE(40), 6)
+    assert.deepEqual([...data.subarray(44)], [0, 128, 0, 0, 255, 127])
+    new Uint8Array(pcm).fill(0)
+    assert.deepEqual([...data.subarray(44)], [0, 128, 0, 0, 255, 127], 'The WAV payload owns its bytes')
+  })
+}
+
+test('ASR encoder empty and offset views retain exact payload boundaries', () => {
+  const empty = encodeAudio(new Float32Array(0), 16000)
+  assert.equal(empty.pcm.byteLength, 0)
+  assert.equal(empty.wav.byteLength, 44)
+  assert.equal(new DataView(empty.wav).getUint32(4, true), 36)
+  assert.equal(new DataView(empty.wav).getUint32(40, true), 0)
+  const backing = Float32Array.of(1, -1, 0.5, 1)
+  const { pcm } = encodeAudio(backing.subarray(1, 3), 16000)
+  assert.deepEqual([...new Uint8Array(pcm)], [0, 128, 255, 63])
+})
+
+for (const implementation of await asrHistorical()) {
+  test(`ASR encoder byte parity with ${implementation.name}`, async () => {
+    const chunks = []
+    const environment = asrAudioEnvironment(implementation, { sampleRate: 8000, interval: 1, onAudioChunk: chunk => chunks.push(chunk) })
+    await environment.emit('play')
+    const input = Float32Array.of(-Infinity, -1, -0.5, Number.NaN, 0, 0.5, 1, Infinity)
+    environment.send(input)
+    await environment.tick()
+    assert.equal(chunks.length, 1)
+    const candidate = encodeAudio(input, 8000)
+    assert.deepEqual(Buffer.from(candidate.pcm), Buffer.from(chunks[0].pcm))
+    assert.deepEqual(Buffer.from(candidate.wav), Buffer.from(chunks[0].wav))
+    await environment.plugin.stop()
+  })
+}
+
+test('ASR sample queue retains insufficient chunks and excess tails', () => {
+  const queue = new SampleQueue()
+  assert.equal(queue.take(8), null)
+  queue.push(Float32Array.of(1, 2, 3, 4))
+  assert.equal(queue.take(8), null)
+  assert.equal(queue.length, 4)
+  queue.push(Float32Array.of(5, 6, 7, 8, 9, 10))
+  assert.deepEqual([...queue.take(8)], [1, 2, 3, 4, 5, 6, 7, 8])
+  assert.equal(queue.length, 2)
+  assert.equal(queue.take(3), null)
+  queue.push(Float32Array.of(11))
+  assert.deepEqual([...queue.take(3)], [9, 10, 11])
+  assert.equal(queue.length, 0)
+  assert.equal(queue.take(1), null)
+})
+
+test('ASR sample queue copies input views and returns independently owned output', () => {
+  const queue = new SampleQueue()
+  const input = Float32Array.of(0, 1, 2, 3)
+  queue.push(input.subarray(1, 3))
+  input.fill(9)
+  const first = queue.take(1)
+  assert.deepEqual([...first], [1])
+  first[0] = 8
+  assert.deepEqual([...queue.take(1)], [2])
+})
+
+test('ASR sample queue clears partial blocks and can be reused after draining', () => {
+  const queue = new SampleQueue()
+  queue.push(Float32Array.of(1, 2, 3))
+  assert.deepEqual([...queue.take(1)], [1])
+  queue.clear()
+  queue.clear()
+  queue.push(new Float32Array(0))
+  assert.equal(queue.length, 0)
+  assert.equal(queue.take(1), null)
+  queue.push(Float32Array.of(4, 5))
+  assert.deepEqual([...queue.take(2)], [4, 5])
+  queue.push(Float32Array.of(6))
+  assert.deepEqual([...queue.take(1)], [6])
+})
+
+test('ASR sample queue rejects invalid count without losing buffered audio', () => {
+  const queue = new SampleQueue()
+  queue.push(Float32Array.of(1, 2))
+  for (const count of [0, -1, 0.5, Number.NaN, Infinity, -Infinity, Number.MAX_SAFE_INTEGER + 1]) {
+    assert.throws(() => queue.take(count), { name: 'RangeError', message: 'Sample count must be a positive safe integer' })
+    assert.equal(queue.length, 2)
+  }
+  assert.equal(queue.take(Number.MAX_SAFE_INTEGER), null)
+  assert.deepEqual([...queue.take(2)], [1, 2])
+})
+
+test('ASR sample queue handles many worklet blocks without dropping boundary samples', () => {
+  const queue = new SampleQueue()
+  for (let index = 0; index < 4096; index++)
+    queue.push(Float32Array.of(index, -index))
+  assert.equal(queue.length, 8192)
+  const first = queue.take(4097)
+  const second = queue.take(4095)
+  assert.equal(queue.length, 0)
+  const output = [...first, ...second]
+  for (let index = 0; index < 4096; index++) {
+    assert.equal(output[index * 2], index)
+    assert.equal(output[index * 2 + 1], -index)
+  }
+})
+
+test('ASR sample queue preserves FIFO through deterministic mixed push, take and clear operations', () => {
+  const queue = new SampleQueue()
+  let expected = []
+  let serial = 0
+  for (let index = 1; index <= 1000; index++) {
+    if (index % 113 === 0) {
+      queue.clear()
+      expected = []
+    }
+    else if (index % 3 !== 0) {
+      const chunk = Float32Array.from({ length: index % 17 }, () => ++serial)
+      queue.push(chunk)
+      expected.push(...chunk)
+    }
+    else {
+      const count = index % 23 + 1
+      const actual = queue.take(count)
+      if (expected.length < count)
+        assert.equal(actual, null)
+      else
+        assert.deepEqual([...actual], expected.splice(0, count))
+    }
+    assert.equal(queue.length, expected.length)
+  }
+  if (expected.length)
+    assert.deepEqual([...queue.take(expected.length)], expected)
+})
+
+test('ASR candidate Worklet keeps registration, first-channel identity and empty-input behavior', async () => {
+  const { processor, messages } = await runAsrWorklet(new Blob([recorderProcessorCode]))
+  const first = Float32Array.of(-0.5, 0.5)
+  const second = Float32Array.of(1, 1)
+  assert.equal(processor.process([]), true)
+  assert.equal(processor.process([[]]), true)
+  assert.equal(messages.length, 0)
+  assert.equal(processor.process([[first, second]]), true)
+  assert.equal(messages.length, 1)
+  assert.equal(messages[0], first)
+})
diff --git a/test/asr-lifecycle.test.js b/test/asr-lifecycle.test.js
new file mode 100644
index 000000000..ab77568b8
--- /dev/null
+++ b/test/asr-lifecycle.test.js
@@ -0,0 +1,434 @@
+import assert from 'node:assert/strict'
+import { Buffer } from 'node:buffer'
+import fs from 'node:fs'
+import process from 'node:process'
+// eslint-disable-next-line test/no-import-node-test -- Candidate ASR lifecycle uses the repository runner.
+import test from 'node:test'
+import { asrAudioEnvironment, deferredAudio } from './helpers/asr-audio.js'
+import { asrEnvironment } from './helpers/asr.js'
+import { compilePackage } from './helpers/load.js'
+
+const artifact = process.env.ARTPLAYER_ASR_ARTIFACT
+const implementation = {
+  name: artifact || 'candidate-asr',
+  code: artifact ? fs.readFileSync(artifact, 'utf8') : await compilePackage('artplayer-plugin-asr', 'umd'),
+}
+const block = (value = 0, length = 8) => new Float32Array(length).fill(value)
+
+function create(option = {}, capabilities = {}) {
+  return asrAudioEnvironment(implementation, { sampleRate: 8000, interval: 1, ...option }, capabilities)
+}
+
+function pcmSamples(chunk) {
+  const bytes = new DataView(chunk.pcm)
+  return Array.from({ length: chunk.pcm.byteLength / 2 }, (_, index) => bytes.getInt16(index * 2, true))
+}
+
+test('ASR candidate lazy factory and synchronous registration keep result keys and Promise stop', async () => {
+  const environment = asrEnvironment(implementation)
+  assert.equal(environment.exported.default, environment.exported, 'Both historical CJS factory paths remain callable')
+  assert.deepEqual(Object.keys(environment.exported), [])
+  const option = { length: 1, autoHideTimeout: 321 }
+  const register = environment.factory(option)
+  assert.equal(typeof register, 'function')
+  assert.equal(environment.layers.length, 0)
+  assert.equal(environment.listeners.size, 0)
+  option.length = 3
+  option.autoHideTimeout = 999
+  const result = register(environment.art)
+  assert.equal(result.then, undefined)
+  assert.deepEqual(Object.keys(result), ['name', 'stop', 'hide', 'append'])
+  assert.equal(result.name, 'artplayerPluginAsr')
+  assert.equal(environment.layers.length, 1)
+  assert.equal(environment.layers[0].name, 'asr')
+  assert.equal(environment.layers[0].html, '')
+  result.append('One. Two! <b>Three</b>')
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line"><b>Three</b></div>')
+  assert.equal([...environment.timeouts.values()][0].delay, 321, 'Factory snapshots its configuration')
+  const stopping = result.stop()
+  assert.equal(typeof stopping.then, 'function')
+  assert.equal(await stopping, undefined)
+  assert.equal(environment.timeouts.size, 1, 'A displayed subtitle keeps its existing auto-hide deadline after stop')
+  ;[...environment.timeouts.values()][0].callback()
+  assert.equal(environment.layer.style.display, 'none')
+  await environment.emit('destroy')
+  assert.equal(environment.timeouts.size, 0)
+})
+
+test('ASR candidate append keeps punctuation, HTML, ignored non-string values and timer replacement', async () => {
+  const environment = create({ length: 2, autoHideTimeout: 432 })
+  assert.equal(environment.plugin.append('First. Second! Third?'), undefined)
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">Second!</div><div class="art-asr-line">Third?</div>')
+  const firstTimer = [...environment.timeouts.keys()][0]
+  environment.plugin.append(42)
+  assert.equal([...environment.timeouts.keys()][0], firstTimer)
+  environment.plugin.append('<b>Raw</b>')
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line"><b>Raw</b></div>')
+  assert.equal(environment.timeouts.size, 1)
+  assert.notEqual([...environment.timeouts.keys()][0], firstTimer)
+  const timer = [...environment.timeouts.values()][0]
+  assert.equal(timer.delay, 432)
+  timer.callback()
+  assert.equal(environment.layer.style.display, 'none')
+  environment.plugin.append('Visible.')
+  assert.equal(environment.layer.style.display, '')
+  assert.equal(environment.plugin.hide(), undefined)
+  assert.equal(environment.layer.style.display, 'none')
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">Visible.</div>')
+  await environment.plugin.stop()
+})
+
+test('ASR candidate preserves chunk payload, exact PCM/WAV bytes and callback subtitles', async () => {
+  let chunk
+  const environment = create({ onAudioChunk(value) {
+    chunk = value
+    return 'One. Two!'
+  } })
+  await environment.emit('play')
+  environment.send([-Infinity, -1, -0.5, Number.NaN, 0, 0.5, 1, Infinity])
+  await environment.tick()
+  assert.deepEqual(Object.keys(chunk), ['pcm', 'wav'])
+  assert.deepEqual(pcmSamples(chunk), [-32768, -32768, -16384, 0, 0, 16383, 32767, 32767])
+  const wav = Buffer.from(chunk.wav)
+  assert.equal(wav.byteLength, 60)
+  assert.equal(wav.toString('ascii', 0, 4), 'RIFF')
+  assert.equal(wav.readUInt32LE(4), 52)
+  assert.equal(wav.readUInt16LE(22), 1)
+  assert.equal(wav.readUInt32LE(24), 8000)
+  assert.equal(wav.readUInt32LE(28), 16000)
+  assert.equal(wav.readUInt32LE(40), 16)
+  assert.deepEqual(wav.subarray(44), Buffer.from(chunk.pcm))
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">One.</div><div class="art-asr-line">Two!</div>')
+  await environment.plugin.stop()
+})
+
+test('ASR candidate preserves short chunks across ticks and excess tail in FIFO order', async () => {
+  const chunks = []
+  const environment = create({ onAudioChunk: value => chunks.push(value) })
+  await environment.emit('play')
+  environment.send(block(0.5, 4))
+  await environment.tick()
+  assert.equal(chunks.length, 0)
+  environment.send(block(-0.5, 8))
+  await environment.tick()
+  assert.deepEqual(pcmSamples(chunks[0]), [16383, 16383, 16383, 16383, -16384, -16384, -16384, -16384])
+  await environment.tick()
+  assert.equal(chunks.length, 1)
+  environment.send(block(1, 4))
+  await environment.tick()
+  assert.deepEqual(pcmSamples(chunks[1]), [-16384, -16384, -16384, -16384, 32767, 32767, 32767, 32767])
+  await environment.plugin.stop()
+})
+
+test('ASR candidate allows one in-flight recognizer and retains queued audio', async () => {
+  const pending = deferredAudio()
+  const calls = []
+  const environment = create({ onAudioChunk: (chunk) => {
+    calls.push(chunk)
+    return calls.length === 1 ? pending.promise : 'Second.'
+  } })
+  await environment.emit('play')
+  environment.send(block(0.5))
+  const first = environment.tick()
+  environment.send(block(-0.5))
+  await environment.tick()
+  await environment.tick()
+  assert.equal(calls.length, 1)
+  pending.resolve('First.')
+  await first
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">First.</div>')
+  await environment.tick()
+  assert.equal(calls.length, 2)
+  assert.deepEqual(pcmSamples(calls[1]), Array.from({ length: 8 }, () => -16384))
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">Second.</div>')
+  await environment.plugin.stop()
+})
+
+for (const mode of ['throw', 'reject']) {
+  test(`ASR candidate handles callback ${mode} and continues subsequent audio`, async () => {
+    const failure = new Error('recognition failed')
+    let count = 0
+    const environment = create({ onAudioChunk: () => {
+      if (++count > 1)
+        return 'Recovered.'
+      if (mode === 'throw')
+        throw failure
+      return Promise.reject(failure)
+    } })
+    await environment.emit('play')
+    environment.send(block())
+    await assert.doesNotReject(environment.tick())
+    assert.equal(environment.errors.length, 1)
+    assert.equal(environment.errors[0][1], failure)
+    environment.send(block())
+    await environment.tick()
+    assert.equal(count, 2)
+    assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">Recovered.</div>')
+    await environment.plugin.stop()
+  })
+}
+
+for (const event of ['pause', 'stop', 'destroy', 'restart']) {
+  test(`ASR candidate invalidates pending callback after ${event}`, async () => {
+    const pending = deferredAudio()
+    const environment = create({ onAudioChunk: () => pending.promise })
+    await environment.emit('play')
+    environment.send(block())
+    const recognizing = environment.tick()
+    await (event === 'stop' ? environment.plugin.stop() : environment.emit(event))
+    pending.resolve('Obsolete.')
+    await recognizing
+    assert.equal(environment.layer.innerHTML, '')
+    assert.equal(environment.timeouts.size, 0)
+    assert.equal(environment.errors.length, 0)
+    assert.equal(environment.intervals.size, event === 'restart' ? 1 : 0)
+    await environment.plugin.stop()
+  })
+}
+
+test('ASR candidate reset clears old queued audio without dropping the next source', async () => {
+  const calls = []
+  const environment = create({ onAudioChunk: value => calls.push(value) })
+  await environment.emit('play')
+  environment.send(block(0.5))
+  environment.art.video.src = 'local-new-source.mp4'
+  await environment.emit('restart')
+  await environment.tick()
+  assert.equal(calls.length, 0)
+  environment.send(block(-0.5))
+  await environment.tick()
+  assert.deepEqual(pcmSamples(calls[0]), Array.from({ length: 8 }, () => -16384))
+  await environment.plugin.stop()
+})
+
+test('ASR candidate old callback completion cannot unlock a new session pending callback', async () => {
+  const pending = [deferredAudio(), deferredAudio()]
+  let calls = 0
+  const environment = create({ onAudioChunk: () => pending[calls++].promise })
+  await environment.emit('play')
+  environment.send(block())
+  const old = environment.tick()
+  await environment.emit('pause')
+  await environment.emit('play')
+  environment.send(block())
+  const current = environment.tick()
+  pending[0].resolve('Old.')
+  await old
+  environment.send(block())
+  await environment.tick()
+  assert.equal(calls, 2)
+  assert.equal(environment.layer.innerHTML, '')
+  pending[1].resolve('Current.')
+  await current
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">Current.</div>')
+  await environment.plugin.stop()
+})
+
+test('ASR candidate concurrent play creates one graph and one interval', async () => {
+  const moduleGate = deferredAudio()
+  const moduleEntered = deferredAudio()
+  const environment = create({}, { moduleGate, moduleEntered })
+  const starting = environment.emit('play')
+  const duplicate = environment.emit('play')
+  await moduleEntered.promise
+  assert.equal(environment.modules.length, 1)
+  moduleGate.resolve()
+  await Promise.all([starting, duplicate])
+  await environment.emit('play')
+  assert.equal(environment.contexts.length, 1)
+  assert.equal(environment.recorders.length, 1)
+  assert.equal(environment.intervals.size, 1)
+  await environment.plugin.stop()
+  assert.equal(environment.intervals.size, 0)
+  assert.equal(environment.recorders[0].port.onmessage, null)
+  assert.equal(environment.recorders[0].disconnects, 1)
+})
+
+test('ASR candidate pause during module loading prevents late connection and later resumes prepared graph', async () => {
+  const moduleGate = deferredAudio()
+  const moduleEntered = deferredAudio()
+  const environment = create({}, { moduleGate, moduleEntered, capture: false })
+  const starting = environment.emit('play')
+  await moduleEntered.promise
+  await environment.emit('pause')
+  moduleGate.resolve()
+  await starting
+  assert.equal(environment.intervals.size, 0)
+  assert.equal(environment.recorders.length, 0)
+  assert.equal(environment.contexts[0].closes, 0)
+  await environment.emit('play')
+  assert.equal(environment.contexts.length, 1)
+  assert.equal(environment.modules.length, 1)
+  assert.equal(environment.recorders.length, 1)
+  assert.equal(environment.intervals.size, 1)
+  assert.equal(environment.captures(), 0)
+  assert.equal(environment.errors.length, 0)
+  await environment.plugin.stop()
+})
+
+for (const event of ['stop', 'destroy']) {
+  test(`ASR candidate ${event} during module loading frees URL and context without resurrection`, async () => {
+    const moduleGate = deferredAudio()
+    const moduleEntered = deferredAudio()
+    const environment = create({}, { moduleGate, moduleEntered })
+    const starting = environment.emit('play')
+    await moduleEntered.promise
+    assert.equal(environment.blobs.size, 1)
+    await (event === 'stop' ? environment.plugin.stop() : environment.emit(event))
+    assert.equal(environment.blobs.size, 0)
+    assert.equal(environment.contexts[0].closes, 1)
+    moduleGate.resolve()
+    await starting
+    assert.equal(environment.revoked.length, 1)
+    assert.equal(environment.intervals.size, 0)
+    assert.equal(environment.recorders.length, 0)
+    assert.equal(environment.errors.length, 0)
+  })
+}
+
+test('ASR candidate failed module initialization releases context and URL before binding video', async () => {
+  const failure = new Error('failed worklet')
+  const environment = create({}, { moduleError: failure })
+  await environment.emit('play')
+  assert.equal(environment.errors.length, 1)
+  assert.equal(environment.errors[0][1], failure)
+  assert.equal(environment.contexts[0].closes, 1)
+  assert.equal(environment.blobs.size, 0)
+  assert.equal(environment.revoked.length, 1)
+  assert.equal(environment.nodes.filter(node => node.kind === 'element').length, 0)
+  assert.equal(environment.intervals.size, 0)
+  await environment.plugin.stop()
+  assert.equal(environment.contexts[0].closes, 1)
+})
+
+test('ASR candidate pause/resume reuses direct source without captureStream', async () => {
+  const environment = create({}, { capture: false })
+  await environment.emit('play')
+  const source = environment.nodes.find(node => node.kind === 'element')
+  await environment.emit('pause')
+  assert.equal(source.connections.length, 1, 'The player-owned audio route remains available while ASR is paused')
+  assert.equal(source.connections[0].kind, 'gain')
+  assert.equal(source.connections[0].connections[0], environment.contexts[0].destination)
+  assert.equal(environment.recorders[0].port.onmessage, null)
+  await environment.emit('play')
+  assert.equal(environment.contexts.length, 1)
+  assert.equal(environment.modules.length, 1)
+  assert.equal(environment.nodes.filter(node => node.kind === 'element').length, 1)
+  assert.equal(source.connections.length, 2)
+  assert.equal(environment.errors.length, 0)
+  assert.equal(environment.intervals.size, 1)
+  await environment.plugin.stop()
+})
+
+test('ASR candidate ignores old worklet delivery after pause/resume reconnect', async () => {
+  const calls = []
+  const environment = create({ onAudioChunk: value => calls.push(value) })
+  await environment.emit('play')
+  const staleMessage = environment.recorders[0].port.onmessage
+  await environment.emit('pause')
+  await environment.emit('play')
+  staleMessage({ data: block(0.5) })
+  environment.send(block(-0.5))
+  await environment.tick()
+  assert.equal(calls.length, 1)
+  assert.deepEqual(pcmSamples(calls[0]), Array.from({ length: 8 }, () => -16384))
+  await environment.plugin.stop()
+})
+
+test('ASR candidate overload explicitly reports and pauses instead of silently discarding samples', async () => {
+  const environment = create()
+  await environment.emit('play')
+  environment.send(block(0, 8000 * 60))
+  assert.equal(environment.errors.length, 0)
+  assert.equal(environment.intervals.size, 1)
+  environment.send(block(0, 1))
+  assert.equal(environment.errors.length, 1)
+  assert.deepEqual(environment.errors[0], ['[artplayerPluginAsr] Audio callback backlog exceeded its capture limit'])
+  assert.equal(environment.intervals.size, 0)
+  assert.equal(environment.recorders[0].port.onmessage, null)
+  await environment.plugin.stop()
+  await environment.emit('destroy')
+  const longChunk = create({ interval: 120000 })
+  await longChunk.emit('play')
+  longChunk.send(block(0, 8000 * 60 + 1))
+  assert.equal(longChunk.errors.length, 0, 'A configured chunk longer than 60 seconds must still be collectable')
+  assert.equal(longChunk.intervals.size, 1)
+  await longChunk.emit('destroy')
+})
+
+test('ASR candidate destroy cancels subtitle timers, removes subscriptions and forbids public append resurrection', async () => {
+  const environment = create()
+  await environment.emit('play')
+  environment.plugin.append('Kept.')
+  assert.equal(environment.timeouts.size, 1)
+  await environment.emit('destroy')
+  assert.equal(environment.timeouts.size, 0)
+  assert.equal([...environment.listeners.values()].flat().length, 0)
+  const html = environment.layer.innerHTML
+  const display = environment.layer.style.display
+  environment.plugin.append('Unexpected.')
+  environment.plugin.hide()
+  await environment.emit('play')
+  await environment.emit('restart')
+  await environment.emit('video:volumechange')
+  await environment.plugin.stop()
+  assert.equal(environment.layer.innerHTML, html)
+  assert.equal(environment.layer.style.display, display)
+  assert.equal(environment.timeouts.size, 0)
+  assert.equal(environment.contexts.length, 1)
+  assert.equal(environment.contexts[0].closes, 1)
+  assert.equal(environment.intervals.size, 0)
+})
+
+test('ASR candidate public stop retains the current hide deadline and allows append and subsequent play', async () => {
+  const environment = create({}, { capture: false })
+  await environment.emit('play')
+  environment.plugin.append('Before.')
+  const beforeTimer = [...environment.timeouts.keys()][0]
+  await environment.plugin.stop()
+  assert.equal(environment.timeouts.size, 1)
+  assert.equal([...environment.timeouts.keys()][0], beforeTimer)
+  assert.equal(environment.contexts[0].closes, 0, 'Direct media ownership lasts until player destruction')
+  const source = environment.nodes.find(node => node.kind === 'element')
+  assert.equal(source.connections[0].kind, 'gain')
+  assert.equal(source.connections[0].connections[0], environment.contexts[0].destination)
+  environment.plugin.append('After.')
+  assert.equal(environment.layer.innerHTML, '<div class="art-asr-line">After.</div>')
+  await environment.emit('play')
+  assert.equal(environment.contexts.length, 1)
+  assert.equal(environment.captures(), 0)
+  assert.equal(environment.intervals.size, 1)
+  await environment.plugin.stop()
+  await environment.emit('destroy')
+  assert.equal(environment.contexts[0].closes, 1)
+  assert.equal(source.connections.length, 0)
+})
+
+test('ASR candidate volume route survives stop and resume without resetting gain', async () => {
+  const environment = create({}, { capture: false })
+  await environment.emit('play')
+  environment.art.volume = 0.25
+  await environment.emit('video:volumechange')
+  await environment.plugin.stop()
+  const source = environment.nodes.find(node => node.kind === 'element')
+  assert.equal(source.connections[0].gain.value, 0.25)
+  await environment.emit('play')
+  assert.equal(source.connections.find(node => node.kind === 'gain').gain.value, 0.25)
+  await environment.emit('destroy')
+  assert.equal(environment.contexts[0].closes, 1)
+})
+
+test('ASR candidate source restart releases captured tracks and obtains a new fallback source', async () => {
+  const environment = create({}, { directError: new Error('video belongs to another context') })
+  await environment.emit('play')
+  assert.equal(environment.captures(), 1)
+  await environment.emit('restart')
+  assert.equal(environment.captures(), 2)
+  assert.equal(environment.contexts[0].closes, 1)
+  assert.equal(environment.contexts[1].closes, 0)
+  assert.equal(environment.tracks[0].stops, 1)
+  assert.equal(environment.intervals.size, 1)
+  await environment.plugin.stop()
+  assert.equal(environment.contexts[1].closes, 1)
+  assert.equal(environment.tracks[0].stops, 2)
+})
diff --git a/test/asr.test.js b/test/asr.test.js
index 0cecc29ad..009ce3537 100644
--- a/test/asr.test.js
+++ b/test/asr.test.js
@@ -30,7 +30,7 @@ for (const implementation of await asrHistorical()) {
       assert.equal(env.styles.size, 1)
     })
   }
-  test(`ASR ${implementation.name}: append replaces punctuation lines, permits markup, and hide retains content`, () => {
+  test(`ASR ${implementation.name}: append replaces punctuation lines, permits markup, and hide retains content`, async () => {
     const env = asrEnvironment(implementation)
     const result = env.factory()(env.art)
     assert.equal(result.append('One. Two! 三。 Four?'), undefined)
@@ -47,6 +47,9 @@ for (const implementation of await asrHistorical()) {
     result.append('')
     assert.equal(env.layer.innerHTML, '')
     assert.equal(env.layer.style.display, '')
+    const timer = [...env.timeouts.keys()][0]
+    await result.stop()
+    assert.equal([...env.timeouts.keys()][0], timer, 'Stopping audio preserves an existing subtitle hide deadline')
     ;[...env.timeouts.values()][0].callback()
     assert.equal(env.layer.style.display, 'none')
   })
diff --git a/test/browser/asr-audio.spec.js b/test/browser/asr-audio.spec.js
index 8ebde5ec5..829aa37b9 100644
--- a/test/browser/asr-audio.spec.js
+++ b/test/browser/asr-audio.spec.js
@@ -2,20 +2,23 @@ import fs from 'node:fs'
 import process from 'node:process'
 import { verifyAsrContract } from '../../refactor/scripts/asr-contract.mjs'
 import { hash, readMember } from '../../refactor/scripts/releases.mjs'
+import { compilePackage } from '../helpers/load.js'
 import { expect, test } from './fixtures.js'
 
 let contract
+let candidateCode
 test.beforeAll(async () => {
   contract = await verifyAsrContract()
+  candidateCode = process.env.ARTPLAYER_ASR_ARTIFACT ? fs.readFileSync(process.env.ARTPLAYER_ASR_ARTIFACT) : await compilePackage('artplayer-plugin-asr', 'umd')
 })
 
-for (const version of ['2.0.0', '2.1.0']) {
+for (const version of ['2.0.0', '2.1.0', 'candidate']) {
   for (const core of ['published', 'candidate']) {
-    test(`ASR ${version} + ${core}: native Worklet supplies local PCM and stop closes AudioContext`, async ({ page }, testInfo) => {
+    test(`ASR ${version} + ${core}: native Worklet supplies local PCM with owned stop and destroy`, async ({ page }, testInfo) => {
       const release = [contract.baseline.release, ...contract.baseline.previous].find(release => release.version === version)
-      const code = readMember(contract.archives.get(version), 'package/dist/artplayer-plugin-asr.js')
+      const code = version === 'candidate' ? candidateCode : readMember(contract.archives.get(version), 'package/dist/artplayer-plugin-asr.js')
       const media = fs.readFileSync(new URL('./media/audio-tone.m4a', import.meta.url))
-      await testInfo.attach('asr-inputs', { contentType: 'application/json', body: JSON.stringify({ version, core, pluginSha256: hash(code), integrity: release.integrity, mediaSha256: hash(media), media: 'local mono AAC 440 Hz tone', networkService: false }) })
+      await testInfo.attach('asr-inputs', { contentType: 'application/json', body: JSON.stringify({ version, core, pluginSha256: hash(code), integrity: release?.integrity || null, candidate: process.env.ARTPLAYER_ASR_ARTIFACT || 'workspace source', mediaSha256: hash(media), media: 'local mono AAC 440 Hz tone', networkService: false }) })
       await page.goto(`/test/player.html?core=${core}`)
       const capabilities = await page.evaluate(() => ({ AudioContext: typeof window.AudioContext, webkitAudioContext: typeof window.webkitAudioContext, AudioWorkletNode: typeof window.AudioWorkletNode }))
       await testInfo.attach('asr-audio-capabilities', { contentType: 'application/json', body: JSON.stringify(capabilities) })
@@ -47,7 +50,7 @@ for (const version of ['2.0.0', '2.1.0']) {
               const samples = new Int16Array(pcm)
               let max = 0
               for (const sample of samples) max = Math.max(max, Math.abs(sample))
-              window.asrChunks.push({ samples: samples.length, max, wavBytes: wav.byteLength, sampleRate: new DataView(wav).getUint32(24, true) })
+              window.asrChunks.push({ samples: samples.length, max, wavBytes: wav.byteLength, sampleRate: new DataView(wav).getUint32(24, true), source: window.art.video.currentSrc })
               return 'Local transcript.'
             },
           })],
@@ -60,10 +63,36 @@ for (const version of ['2.0.0', '2.1.0']) {
       const chunks = await page.evaluate(() => window.asrChunks)
       expect(chunks.every(chunk => chunk.samples === 1600 && chunk.wavBytes === 3244 && chunk.sampleRate === 16000)).toBe(true)
       await expect(page.locator('.art-layer-asr')).toContainText('Local transcript.')
+      if (version === 'candidate') {
+        await page.evaluate(() => window.art.pause())
+        const before = await page.evaluate(() => window.asrChunks.length)
+        await page.waitForTimeout(250)
+        expect(await page.evaluate(() => window.asrChunks.length)).toBe(before)
+        await page.locator('#play').click()
+        await expect.poll(() => page.evaluate(() => window.asrChunks.length)).toBeGreaterThan(before + 2)
+        expect(await page.evaluate(() => window.asrContexts.length)).toBe(1)
+        await page.evaluate(() => {
+          window.art.url = '/test/audio-tone.m4a?asr=second'
+        })
+        await expect.poll(() => page.evaluate(() => window.art.video.currentSrc.includes('asr=second') && window.art.video.readyState >= 2)).toBe(true)
+        await page.locator('#play').click()
+        await expect.poll(() => page.evaluate(() => window.asrChunks.filter(chunk => chunk.source.includes('asr=second') && chunk.max > 0).length)).toBeGreaterThanOrEqual(3)
+        expect(await page.evaluate(() => window.asrContexts.length)).toBe(1)
+      }
       await page.evaluate(() => window.art.plugins.artplayerPluginAsr.stop())
-      expect(await page.evaluate(() => window.asrContexts.map(context => context.state))).toEqual(['closed'])
-      await testInfo.attach('asr-native-chunks', { contentType: 'application/json', body: JSON.stringify(chunks) })
+      expect(await page.evaluate(() => window.asrContexts.map(context => context.state))).toEqual([version === 'candidate' ? 'running' : 'closed'])
+      if (version === 'candidate') {
+        await page.evaluate(() => window.art.pause())
+        const before = await page.evaluate(() => window.asrChunks.filter(chunk => chunk.max > 0).length)
+        await page.locator('#play').click()
+        await expect.poll(() => page.evaluate(() => window.asrChunks.filter(chunk => chunk.max > 0).length)).toBeGreaterThan(before + 2)
+        expect(await page.evaluate(() => window.asrContexts.length)).toBe(1)
+        await page.evaluate(() => window.art.plugins.artplayerPluginAsr.stop())
+        expect(await page.evaluate(() => window.asrContexts.map(context => context.state))).toEqual(['running'])
+      }
+      await testInfo.attach('asr-native-chunks', { contentType: 'application/json', body: JSON.stringify(await page.evaluate(() => window.asrChunks)) })
       await page.evaluate(() => window.art.destroy())
+      await expect.poll(() => page.evaluate(() => window.asrContexts.map(context => context.state))).toEqual(['closed'])
     })
   }
 }
diff --git a/test/helpers/asr.js b/test/helpers/asr.js
index 965dc69ae..d0851d7c5 100644
--- a/test/helpers/asr.js
+++ b/test/helpers/asr.js
@@ -32,6 +32,7 @@ export function asrEnvironment(implementation, { script = false } = {}) {
       return id
     },
     clearTimeout(timer) { timeouts.delete(timer) },
+    clearInterval() {},
     document: {
       getElementById: id => styles.get(id),
       createElement: () => ({}),
@@ -57,6 +58,7 @@ export function asrEnvironment(implementation, { script = false } = {}) {
       return layer
     } },
     on(name, callback) { listeners.set(name, [...listeners.get(name) || [], callback]) },
+    off(name, callback) { listeners.set(name, (listeners.get(name) || []).filter(listener => listener !== callback)) },
   }
   return { context, factory, exported, styles, layer, layers, listeners, timeouts, art, reload: () => vm.runInContext(code, context), emit: name => Promise.all((listeners.get(name) || []).map(callback => callback())) }
 }