Silero VAD

Detect speech in audio, instantly
Speech (STT / TTS)Voice activity detectionMITRuns locallyPythonBeginner
OSAI Pulse ⓘ ★★★★★★★★★★ /100 signals tracked
🐳 Docker pulls 📦 PyPI downloads / month 📦 npm downloads / month 🚀 Latest release ·
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What is Silero VAD?

Silero VAD detects which parts of an audio stream contain speech, in under a millisecond per chunk — essential for real-time voice pipelines.

Why people choose Silero VAD

Silero VAD at a glance

CategorySpeech (STT / TTS)
TypeVoice activity detection
LicenseMIT
Runs locallyYes
Built withPython
Skill levelBeginner
Best forreal-time voice assistants

Open-source alternatives to Silero VAD

Other open-source speech (stt / tts) tools worth comparing:

WhisperOpenAI's open speech-to-text baselinefaster-whisperWhisper, much faster and lighterWhisperXWhisper plus word timestamps and diarizationPiperFast, local neural text-to-speechCoqui TTSDeep-learning TTS with voice cloningBarkText-to-audio with voices and effectsF5-TTSZero-shot voice cloning that actually convincesKokoroTiny 82M TTS with astonishing qualitywhisper.cppWhisper in pure C/C++, runs anywhereOpenVoiceClone a voice and control its emotionStyleTTS 2Human-level speech synthesispyannote.audioKnow who spoke when

Silero VAD head-to-head

Silero VAD vs WhisperSilero VAD vs faster-whisperSilero VAD vs WhisperXSilero VAD vs PiperSilero VAD vs Coqui TTSSilero VAD vs BarkSilero VAD vs F5-TTSSilero VAD vs KokoroSilero VAD vs whisper.cppSilero VAD vs OpenVoiceSilero VAD vs StyleTTS 2Silero VAD vs pyannote.audio

FAQ

Is Silero VAD free?

Silero VAD is free and open-source (MIT license), so you can use, self-host and modify it at no cost.

Can I run Silero VAD locally?

Yes. Silero VAD is designed to run on your own machine or server, keeping your data private.

What is the best alternative to Silero VAD?

Popular open-source alternatives include Whisper, faster-whisper, WhisperX. See the comparisons above to choose.

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