RealtimeVAD: Open-Source VAD Trades False Positives for ~110ms Faster End-of-Speech
Lonligrin · reddit · 2026-11-12
A developer hunting latency in a local voice assistant found silero's speech-end probability lags the actual end of speech. RealtimeVAD adds a naive 10ms energy check with room-noise tracking once silero detects speech onset.
- Result: median end-of-speech 110ms earlier than silero (threshold 0.5) across 3200 real turns; another user got 92ms on noisier data
- Trade-off: 10x more false positives (breaths, inter-word pauses), only viable for pipelines that can discard speculative work fast
- Pure CPU, MIT, drop-in for silero VADIterator, pip install realtimevad; benchmark script included
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