async function vad()

in conversational-webgpu/src/worker.js [121:136]

• 10 lines of code
• 3 McCabe index (conditional complexity)

async function vad(buffer) {
  const input = new Tensor("float32", buffer, [1, buffer.length]);

  const { stateN, output } = await silero_vad({ input, sr, state });
  state = stateN; // Update state

  const isSpeech = output.data[0];

  // Use heuristics to determine if the buffer is speech or not
  return (
    // Case 1: We are above the threshold (definitely speech)
    isSpeech > SPEECH_THRESHOLD ||
    // Case 2: We are in the process of recording, and the probability is above the negative (exit) threshold
    (isRecording && isSpeech >= EXIT_THRESHOLD)
  );
}