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clarify voice confidence method behavior in AIC VAD.

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Gökmen Görgen
2026-01-23 15:53:14 +01:00
parent 34e9f224a8
commit bd92104fb3
1 changed files with 9 additions and 3 deletions
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src/pipecat/audio/vad/aic_vad.py
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@@ -149,13 +149,19 @@ class AICVADAnalyzer(VADAnalyzer):
return int(self.sample_rate * 0.01) if self.sample_rate > 0 else 160 return int(self.sample_rate * 0.01) if self.sample_rate > 0 else 160
def voice_confidence(self, buffer: bytes) -> float: def voice_confidence(self, buffer: bytes) -> float:
"""Calculate voice activity confidence for the given audio buffer. """Return voice activity detection result for the given audio buffer.
Note:
The AIC SDK provides binary speech detection (not a probability score).
This method returns 1.0 when speech is detected and 0.0 otherwise,
rather than a true confidence value.
Args: Args:
buffer: Audio buffer to analyze. buffer: Audio buffer (unused - AIC VAD state is updated internally
by the enhancement pipeline).
Returns: Returns:
Voice confidence score is 0.0 or 1.0. 1.0 if speech is detected, 0.0 otherwise.
""" """
# Ensure VAD context exists (filter might have started since last call) # Ensure VAD context exists (filter might have started since last call)
self._ensure_vad_context_initialized() self._ensure_vad_context_initialized()