@kuralle-syrinx/pipecat-smart-turn

Smart Turn v3 endpointing for Syrinx, fused with transcript-level semantic completeness.

InteractionPolicy selection

Use SmartTurnInteractionPolicy when the session policy seam should own endpointing. Register Silero VAD and provider STT as usual, but do not register PipecatEOSPlugin; the session disables provider-owned EOS and routes the policy's take_turn through STT finalization.

const session = new VoiceAgentSession({
  plugins: pluginConfig,
  interactionPolicy: new SmartTurnInteractionPolicy(),
  interactionPolicyConfig: pluginConfig.eos,
});

session.registerPlugin("stt", new DeepgramSTTPlugin());
session.registerPlugin("vad", new SileroVADPlugin());

The policy consumes session audio_frame, Silero speech-boundary, STT, and playout observations. Acoustic and semantic completion confidence maps monotonically to a 150-2000 ms wait before turn commit. The model inference is asynchronous; observe() remains synchronous and is gated at p99 <= 5 ms/frame.

PipecatEOSPlugin remains available for existing plugin-based sessions.