Crate webrtc_audio_processing_config 

This crate provides config structs for webrtc-audio-processing without any FFI and with only minimal dependencies. Handy when you want to configure it from e.g. WASM project.

Structs

AdaptiveDigital

Parameters for the adaptive digital controller, which adjusts and applies a digital gain after echo cancellation and after noise suppression.

AnalogGainController

Enables the analog gain controller functionality.

AnalogMicGainEmulation

Analog mic gain emulation for capture level adjustment.

CaptureAmplifierIter

An iterator over the variants of CaptureAmplifier

CaptureLevelAdjustment

Functionality for general level adjustment in the capture pipeline. This should not be used together with the legacy PreAmplifier functionality.

ClippingPredictor

Enables clipping prediction functionality.

ClippingPredictorModeIter

An iterator over the variants of ClippingPredictorMode

Config

The parameters and behavior of the audio processing module are controlled by changing the default values in this Config struct. The config is applied by passing the struct to the Processor::set_config() method.

DownmixMethodIter

An iterator over the variants of DownmixMethod

EchoCancellerIter

An iterator over the variants of EchoCanceller

FixedDigital

Parameters for the fixed digital controller, which applies a fixed digital gain after the adaptive digital controller and before the limiter.

GainController1

Enables automatic gain control (AGC) functionality. The automatic gain control (AGC) component brings the signal to an appropriate range. This is done by applying a digital gain directly and, in the analog mode, prescribing an analog gain to be applied at the audio HAL. Recommended to be enabled on the client-side.

GainController2

Parameters for AGC2, an Automatic Gain Control (AGC) sub-module which replaces the AGC sub-module parameterized by gain_controller1. AGC2 brings the captured audio signal to the desired level by combining three different controllers (namely, input volume controller, adaptive digital controller and fixed digital controller) and a limiter.

GainControllerIter

An iterator over the variants of GainController

GainControllerModeIter

An iterator over the variants of GainControllerMode

HighPassFilter

HPF (high-pass filter) configuration.

NoiseSuppression

Enables background noise suppression.

NoiseSuppressionLevelIter

An iterator over the variants of NoiseSuppressionLevel

Pipeline

Sets the properties of the audio processing pipeline.

PipelineProcessingRateIter

An iterator over the variants of PipelineProcessingRate

PreAmplifier

The PreAmplifier amplifies the capture signal before any other processing is done. TODO(webrtc:5298): Will be deprecated to use the pre-gain functionality in capture_level_adjustment instead.

Enums

CaptureAmplifier

A choice of capture-side pre-amplification/volume adjustment.

ClippingPredictorMode

Clipping predictor mode.

DownmixMethod

Downmix method for multi-channel capture audio.

EchoCanceller

AEC (acoustic echo cancellation) configuration. Defaults to Full (AEC3) mode with delay estimation (stream_delay unset).

GainController

A choice of the gain controller implementation.

GainControllerMode

Gain control mode.

NoiseSuppressionLevel

Noise suppression level.

PipelineProcessingRate

Internal processing rate.