Feat/rnnoise

[gui217]

Add RNNoiseFilter implementation for real-time noise suppression using
RNNoise neural network via pyrnnoise library. The filter buffers audio
to match RNNoise's required frame length (480 samples at 48kHz) and
processes it in chunks.

• Add RNNoiseFilter class with start/stop/process_frame/filter methods
• Add comprehensive test suite covering noise reduction, passthrough
  when disabled, buffering behavior and. resampling
• Add rnnoise optional dependency (pyrnnoise~=0.2.0) to pyproject.toml

In order to use simply:

TransportParams(
             ...
            audio_in_filter=RNNoiseFilter(),
            ...
        ),

[aconchillo]

Awesome! Thank you @gui217 ! Do you mind rebasing and updating uv.lock?

[gui217]

@aconchillo rebased and fixed uv.lock 🙏

[aconchillo]

@aconchillo rebased and fixed uv.lock 🙏

Thanks! Something is off with the UT.

[gui217]

@aconchillo rebased and fixed uv.lock 🙏

Thanks! Something is off with the UT.

should be fixed now - how can i re-trigger the workflows?

[codecov]

Codecov Report

❌ Patch coverage is 83.33333% with 11 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/pipecat/audio/filters/rnnoise_filter.py	83.33%	11 Missing ⚠️

Files with missing lines	Coverage Δ
src/pipecat/audio/filters/rnnoise_filter.py	83.33% <83.33%> (ø)

... and 10 files with indirect coverage changes

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