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connect source to output destination when used as chrome extension to keep audio playing

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Quentin Fuxa 2025-09-27 13:59:44 +02:00
parent 545ea15c9a
commit 2fe3ca0188
1 changed files with 21 additions and 0 deletions
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21
whisperlivekit/web/live_transcription.js
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@ -29,6 +29,8 @@ let selectedMicrophoneId = null;
let serverUseAudioWorklet = null; let serverUseAudioWorklet = null;
let configReadyResolve; let configReadyResolve;
const configReady = new Promise((r) => (configReadyResolve = r)); const configReady = new Promise((r) => (configReadyResolve = r));
let outputAudioContext = null;
let audioSource = null;
waveCanvas.width = 60 * (window.devicePixelRatio || 1); waveCanvas.width = 60 * (window.devicePixelRatio || 1);
waveCanvas.height = 30 * (window.devicePixelRatio || 1); waveCanvas.height = 30 * (window.devicePixelRatio || 1);
@ -511,6 +513,15 @@ async function startRecording() {
} }
}); });
}); });
try {
outputAudioContext = new (window.AudioContext || window.webkitAudioContext)();
audioSource = outputAudioContext.createMediaStreamSource(stream);
audioSource.connect(outputAudioContext.destination);
} catch (audioError) {
console.warn('could not preserve system audio:', audioError);
}
statusText.textContent = "Using tab audio capture."; statusText.textContent = "Using tab audio capture.";
} catch (tabError) { } catch (tabError) {
console.log('Tab capture not available, falling back to microphone', tabError); console.log('Tab capture not available, falling back to microphone', tabError);
@ -659,6 +670,16 @@ async function stopRecording() {
audioContext = null; audioContext = null;
} }
if (audioSource) {
audioSource.disconnect();
audioSource = null;
}
if (outputAudioContext && outputAudioContext.state !== "closed") {
outputAudioContext.close()
outputAudioContext = null;
}
if (animationFrame) { if (animationFrame) {
cancelAnimationFrame(animationFrame); cancelAnimationFrame(animationFrame);
animationFrame = null; animationFrame = null;