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BargeInDetector

gemini_adk_fluent_rs::wire

Struct BargeInDetector 

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pub struct BargeInDetector { /* private fields */ }
Expand description

Barge-in detector — checks whether user speech should interrupt model output.

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impl BargeInDetector

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pub fn new(config: BargeInConfig) -> BargeInDetector

Create a new barge-in detector.

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pub fn check( &mut self, current_phase: SessionPhase, vad_is_speaking: bool, ) -> BargeInAction

Check whether a VAD speech detection during model output should trigger barge-in.

Call this when the VAD detects speech while the session is in ModelSpeaking phase.

When tentative mode is enabled, the sequence is:

  • First speech frame → Duck(volume) (reduce playback volume)
  • Sustained speech reaching min_speech_frames → Interrupt (flush and signal)
  • Silence before confirmation → Restore (false positive)

When tentative mode is disabled, the legacy behavior applies:

  • None until min_speech_frames consecutive frames → Interrupt
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pub fn reset(&mut self)

Reset the detector state.

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pub fn execute_barge_in(jitter_buffer: &mut AudioJitterBuffer) -> SessionCommand

Execute the barge-in sequence:

  1. Flush the jitter buffer (instant silence)
  2. Return the command to signal activity start

The caller is responsible for sending the command and transitioning the FSM.

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