Refactor ASR plugin options and improve audio processing

- Renamed `hideTimeout` to `autoHideTimeout` for clarity.
- Updated the default options destructuring for better readability.
- Removed unnecessary comments and cleaned up the audio processing logic.
- Ensured that the audio buffer is processed correctly before sending to the `onAudioChunk` callback.

docs/assets/example/asr.js

@@ -11,16 +11,25 @@ var art = new Artplayer({
             sampleRate: 16000,
             autoHideTimeout: 10000,
             // Use your AI tool to convert buffer into subtitles
-            onAudioChunk: (buffer) => tencentASR(buffer),
+            onAudioChunk: (buffer) => startAsr(buffer),
         }),
     ]
 });
 
 var ws = null;
 var loading = false;
-async function tencentASR(buffer) {
-    if (loading) return;
 
+function stopAsr() {
+    try {
+        ws.send(JSON.stringify({ type: 'end' }));
+        ws.close();
+    } catch {}
+    ws = null;
+    loading = false;
+}
+
+async function startAsr(buffer) {
+    if (loading) return;
     if (!ws) {
         loading = true;
         const api = 'https://api.aimu.app/asr/tencent?engine_model_type=16k_en';
@@ -30,26 +39,16 @@ async function tencentASR(buffer) {
         ws.onmessage = (event) => {
             const { code, result } = JSON.parse(event.data);
             if (code === 0) {
-                const subtitle = result?.voice_text_str;
-                art.plugins.artplayerPluginAsr.append(subtitle);
+                art.plugins.artplayerPluginAsr.append(result.voice_text_str);
             } else {
-                ws.close();
-                ws = null;
+                stopAsr();
             }
-
         };
         loading = false;
     }
-
-    if (ws.readyState === WebSocket.OPEN) {
+    if (ws?.readyState === WebSocket.OPEN) {
         ws.send(buffer);
     }
 }
 
-art.on('destroy', () => {
-    try {
-        ws.send(JSON.stringify({ type: 'end' }));
-        ws.close();
-    } catch {}
-    ws = null;
-});
+art.on('destroy', stopAsr);