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Silero-VAD

Lightweight, high‑accuracy voice activity detection model for real‑time speech/silence classification.

Silero VAD is a compact, production‑ready Voice Activity Detection model trained on a large multilingual corpus. It processes 32 ms audio chunks at 16 kHz and outputs a speech probability per chunk, enabling real‑time detection of speech segments in streaming or file‑based audio. The model uses an LSTM‑based architecture and is well‑suited for edge deployment on Qualcomm Snapdragon devices.

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Technical Details

Input resolution:512 samples (32 ms at 16 kHz)
Model size (float):2.27 MB
Number of parameters:0.24M
Supported sample rates:16000 Hz

Applicable Scenarios

  • Smart Home
  • Voice Assistants
  • Accessibility
  • Transcription Services

Supported Mobile Form Factors

  • Phone
  • Tablet

License

Model:MIT

Tags

  • real-time

Supported Mobile Devices

  • Samsung Galaxy S21
  • Samsung Galaxy S21 Ultra
  • Samsung Galaxy S22 5G
  • Samsung Galaxy S22 Ultra 5G
  • Samsung Galaxy S22+ 5G
  • Samsung Galaxy S23
  • Samsung Galaxy S23 Ultra
  • Samsung Galaxy S23+
  • Samsung Galaxy S24
  • Samsung Galaxy S24 Ultra
  • Samsung Galaxy S24+
  • Samsung Galaxy S25
  • Samsung Galaxy S25 Ultra
  • Samsung Galaxy S25+
  • Samsung Galaxy S26
  • Samsung Galaxy S26 Ultra
  • Samsung Galaxy S26+
  • Samsung Galaxy Tab S8
  • Snapdragon 7 Gen 4 QRD
  • Xiaomi 12

Supported Mobile Chipsets

  • Snapdragon® 7 Gen 4 Mobile
  • Snapdragon® 8 Elite For Galaxy Mobile
  • Snapdragon® 8 Elite Gen 5 For Galaxy Mobile
  • Snapdragon® 8 Gen 1 Mobile
  • Snapdragon® 8 Gen 2 Mobile
  • Snapdragon® 8 Gen 3 Mobile
  • Snapdragon® 888 Mobile

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