fix(asr): [PKG-ASR-08] keep captured fallback off the audible route

packages/artplayer-plugin-asr/src/audio-graph.ts

@@ -100,14 +100,16 @@ export class AudioGraph {
     this.disconnect()
     const gain = this.gain = previousGain || context.createGain()
     if (!previousGain)
-      gain.gain.value = 1
+      gain.gain.value = this.direct ? 1 : 0
     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)
+    if (this.direct)
+      source.connect(gain)
+    else recorder.connect(gain)
     gain.connect(context.destination)
   }