AudioGraphBuilder.silenceDetect() method
A windowed silence-detection tap (audio passes through): per window emits silent (0/1) + rms_db, flagged when the loudest channel is below thresholdDb (default −60 dBFS).
Signature:
silenceDetect(input: AudioNode, opts: {
name: string;
windowMs: number;
thresholdDb?: number;
}): AudioNode;