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vad-integration

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Add or modify VAD providers and tuning in assistant-api with strict separation from EOS internals. Use for speech activity detection engines, provider registration, and VAD config wiring.

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Source SKILL.md: https://github.com/rapidaai/voice-ai/blob/HEAD/.codex/skills/vad-integration/SKILL.md

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VAD Integration Skill

Mission

Implement VAD providers that emit stable speech activity and interruption signals with low false positives.

Hard boundaries

In scope:

  • api/assistant-api/internal/vad/internal/<provider>/...
  • api/assistant-api/internal/vad/vad.go
  • api/assistant-api/internal/type/vad.go and packet compatibility if needed
  • ui/src/providers/<provider>/vad.json

Out of scope:

  • api/assistant-api/internal/end_of_speech/internal/...
  • EOS factory behavior
  • telephony/STT/TTS internals

Inputs expected from user

  1. Detector type: ONNX/native/sdk.
  2. Input audio assumptions.
  3. Latency vs false-positive tradeoff.

If missing:

  • Assume 16kHz LINEAR16 mono internal input.
  • Use existing threshold/frame defaults.

Packet contract

Input:

  • UserAudioPacket

Required outputs:

  • InterruptionPacket{Source:"vad"} on speech onset
  • VadSpeechActivityPacket heartbeat during active speech
  • optional ConversationEventPacket{Name:"vad"} diagnostics

Implementation workflow

  1. Pick baseline (silero_vad, ten_vad, firered_vad).
  2. Implement provider under internal/<provider>/.
  3. Register provider in vad.go.
  4. Ensure resource lifecycle and Close() safety.
  5. Wire VAD UI config.
  6. Add unit/benchmark coverage.

Validation commands

  • go test ./api/assistant-api/internal/vad/...
  • go test -bench=. ./api/assistant-api/internal/vad/internal/<provider>/...
  • cd ui && yarn test providers
  • ./skills/vad-integration/scripts/validate.sh --check-diff --provider <provider>

References

  • references/checklist.md
  • references/vad-checklist.md
  • examples/sample.md