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Merge pull request #3889 from ai-coustics/goedev/aic-voice-focus-and-memoryview-fix

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AIC Voice Focus version update & concurrency safety issue on audio buffer.
This commit is contained in:
Mark Backman
2026-03-03 09:28:13 -05:00
committed by GitHub
parent 150c8b92e5 7575ea7e07
commit ca0ec16373
6 changed files with 93 additions and 13 deletions
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20
src/pipecat/audio/filters/aic_filter.py
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@@ -375,12 +375,7 @@ class AICFilter(BaseAudioFilter):
self._vad_ctx = self._processor.get_vad_context()
# Apply initial parameters
try:
self._processor_ctx.set_parameter(
ProcessorParameter.Bypass, 1.0 if self._bypass else 0.0
)
except ParameterFixedError as e:
logger.error(f"AIC parameter update failed: {e}")
self._processor_ctx.set_parameter(ProcessorParameter.Bypass, 1.0 if self._bypass else 0.0)
# Log processor information
logger.debug(f"ai-coustics filter started:")
@@ -389,7 +384,8 @@ class AICFilter(BaseAudioFilter):
logger.debug(f" Frames per chunk: {self._frames_per_block}")
logger.debug(f" Optimal sample rate: {self._model.get_optimal_sample_rate()} Hz")
logger.debug(
f" Optimal number of frames for {self._sample_rate} Hz: {self._model.get_optimal_num_frames(self._sample_rate)}"
f" Optimal number of frames for {self._sample_rate} Hz: "
f"{self._model.get_optimal_num_frames(self._sample_rate)}"
)
logger.debug(
f" Output delay: {self._processor_ctx.get_output_delay()} samples "
@@ -458,13 +454,16 @@ class AICFilter(BaseAudioFilter):
if num_blocks == 0:
return b""
filtered_chunks: List[bytes] = []
mv = memoryview(self._audio_buffer)
block_size = self._frames_per_block * self._bytes_per_sample
total_size = num_blocks * block_size
blocks_data = bytes(self._audio_buffer[:total_size])
self._audio_buffer = self._audio_buffer[total_size:]
filtered_chunks: List[bytes] = []
for i in range(num_blocks):
start = i * block_size
block_i16 = np.frombuffer(mv[start : start + block_size], dtype=self._dtype)
block_i16 = np.frombuffer(blocks_data[start : start + block_size], dtype=self._dtype)
# Reuse input buffer, in-place divide
np.copyto(self._in_f32[0], block_i16)
@@ -479,5 +478,4 @@ class AICFilter(BaseAudioFilter):
filtered_chunks.append(self._out_i16.tobytes())
self._audio_buffer = self._audio_buffer[num_blocks * block_size :]
return b"".join(filtered_chunks)