Pipecat Base Audio Filter (filters/base_audio_filter.py)

Abstract base class for input transport audio filters that process raw audio data prior to VAD processing. Reuse when implementing custom audio filters for voice pipelines.

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"""Base audio filter interface for input transport audio processing.

This module provides the abstract base class for implementing audio filters
that process audio data before VAD and downstream processing in input transports.
"""

from abc import ABC, abstractmethod

from pipecat.frames.frames import FilterControlFrame


class BaseAudioFilter(ABC):
    """Base class for input transport audio filters.

    This is a base class for input transport audio filters. If an audio
    filter is provided to the input transport it will be u

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