primeira versão customizada de VAD- Voice Activity Detection

src/voice_assistant/audio_gateway/web/pcm-player.js

@@ -82,8 +82,12 @@ export class PCMPlayer {
   }
 
   async enqueue(buffer) {
+    const generation = this.generation;
+
     if (this.finished) {
-      throw new Error("Playback has already been finalized.");
+      // Playback was already stopped or finalized.
+      // Late audio chunks must not terminate the conversation.
+      return;
     }
 
     const samples = this.decodePCM(buffer);
@@ -94,8 +98,12 @@ export class PCMPlayer {
 
     await this.context.resume();
 
+    if (generation !== this.generation) {
+      return;
+    }
+
     if (this.finished) {
-      throw new Error("Playback was finalized during enqueue.");
+      return;
     }
 
     const audioBuffer = this.context.createBuffer(
@@ -116,9 +124,6 @@ export class PCMPlayer {
     );
 
     this.nextStartTime = startAt + audioBuffer.duration;
-
-    const generation = this.generation;
-
     this.sources.add(source);
 
     if (!this.playing) {