webrtc::aec3 Namespace Reference

Functions
void	AdaptPartitions (const FftBuffer &X_buffer, const FftData &G, rtc::ArrayView< FftData > H)
void	ApplyFilter (const FftBuffer &X_buffer, rtc::ArrayView< const FftData > H, FftData *S)
void	EstimateComfortNoise (const std::array< float, kFftLengthBy2Plus1 > &N2, uint32_t *seed, FftData *lower_band_noise, FftData *upper_band_noise)
void	UpdateDbMetric (const std::array< float, kFftLengthBy2Plus1 > &value, std::array< EchoRemoverMetrics::DbMetric, 2 > *statistic)
int	TransformDbMetricForReporting (bool negate, float min_value, float max_value, float offset, float scaling, float value)
void	MatchedFilterCore (size_t x_start_index, float x2_sum_threshold, rtc::ArrayView< const float > x, rtc::ArrayView< const float > y, rtc::ArrayView< float > h, bool *filters_updated, float *error_sum)
void	ComputeGains (const std::array< float, kFftLengthBy2Plus1 > &nearend_power, const std::array< float, kFftLengthBy2Plus1 > &residual_echo_power, const std::array< float, kFftLengthBy2Plus1 > &comfort_noise_power, float strong_nearend_margin, std::array< float, kFftLengthBy2 - 1 > *previous_gain_squared, std::array< float, kFftLengthBy2 - 1 > *previous_masker, std::array< float, kFftLengthBy2Plus1 > *gain)
	TEST (AdaptiveFirFilter, FilterStatisticsAccess)
	TEST (AdaptiveFirFilter, FilterSize)
	TEST (AdaptiveFirFilter, FilterAndAdapt)
	TEST (ComfortNoiseGenerator, CorrectLevel)
	TEST (MatchedFilter, LagEstimation)
	TEST (MatchedFilter, LagNotReliableForUncorrelatedRenderAndCapture)
	TEST (MatchedFilter, LagNotUpdatedForLowLevelRender)
	TEST (MatchedFilter, NumberOfLagEstimates)
void	ComputeGains (const std::array< float, kFftLengthBy2Plus1 > &nearend_power, const std::array< float, kFftLengthBy2Plus1 > &residual_echo_power, const std::array< float, kFftLengthBy2Plus1 > &comfort_noise_power, float strong_nearend_margin, std::array< float, kFftLengthBy2Minus1 > *previous_gain_squared, std::array< float, kFftLengthBy2Minus1 > *previous_masker, std::array< float, kFftLengthBy2Plus1 > *gain)
	TEST (SuppressionGain, BasicGainComputation)

Function Documentation

AdaptPartitions()

void webrtc::aec3::AdaptPartitions	(	const FftBuffer &	X_buffer,
		const FftData &	G,
		rtc::ArrayView< FftData >	H
	)

ApplyFilter()

void webrtc::aec3::ApplyFilter	(	const FftBuffer &	X_buffer,
		rtc::ArrayView< const FftData >	H,
		FftData *	S
	)

ComputeGains() [1/2]

void webrtc::aec3::ComputeGains	(	const std::array< float, kFftLengthBy2Plus1 > &	nearend_power,
		const std::array< float, kFftLengthBy2Plus1 > &	residual_echo_power,
		const std::array< float, kFftLengthBy2Plus1 > &	comfort_noise_power,
		float	strong_nearend_margin,
		std::array< float, kFftLengthBy2 - 1 > *	previous_gain_squared,
		std::array< float, kFftLengthBy2 - 1 > *	previous_masker,
		std::array< float, kFftLengthBy2Plus1 > *	gain
	)

ComputeGains() [2/2]

void webrtc::aec3::ComputeGains	(	const std::array< float, kFftLengthBy2Plus1 > &	nearend_power,
		const std::array< float, kFftLengthBy2Plus1 > &	residual_echo_power,
		const std::array< float, kFftLengthBy2Plus1 > &	comfort_noise_power,
		float	strong_nearend_margin,
		std::array< float, kFftLengthBy2Minus1 > *	previous_gain_squared,
		std::array< float, kFftLengthBy2Minus1 > *	previous_masker,
		std::array< float, kFftLengthBy2Plus1 > *	gain
	)

EstimateComfortNoise()

void webrtc::aec3::EstimateComfortNoise	(	const std::array< float, kFftLengthBy2Plus1 > &	N2,
		uint32_t *	seed,
		FftData *	lower_band_noise,
		FftData *	upper_band_noise
	)

MatchedFilterCore()

void webrtc::aec3::MatchedFilterCore	(	size_t	x_start_index,
		float	x2_sum_threshold,
		rtc::ArrayView< const float >	x,
		rtc::ArrayView< const float >	y,
		rtc::ArrayView< float >	h,
		bool *	filters_updated,
		float *	error_sum
	)

TEST() [1/9]

webrtc::aec3::TEST	(	MatchedFilter	,
		LagEstimation
	)

TEST() [2/9]

webrtc::aec3::TEST	(	ComfortNoiseGenerator	,
		CorrectLevel
	)

TEST() [3/9]

webrtc::aec3::TEST	(	SuppressionGain	,
		BasicGainComputation
	)

TEST() [4/9]

webrtc::aec3::TEST	(	AdaptiveFirFilter	,
		FilterStatisticsAccess
	)

TEST() [5/9]

webrtc::aec3::TEST	(	AdaptiveFirFilter	,
		FilterSize
	)

TEST() [6/9]

webrtc::aec3::TEST	(	MatchedFilter	,
		LagNotReliableForUncorrelatedRenderAndCapture
	)

TEST() [7/9]

webrtc::aec3::TEST	(	AdaptiveFirFilter	,
		FilterAndAdapt
	)

TEST() [8/9]

webrtc::aec3::TEST	(	MatchedFilter	,
		LagNotUpdatedForLowLevelRender
	)

TEST() [9/9]

webrtc::aec3::TEST	(	MatchedFilter	,
		NumberOfLagEstimates
	)

TransformDbMetricForReporting()

int webrtc::aec3::TransformDbMetricForReporting	(	bool	negate,
		float	min_value,
		float	max_value,
		float	offset,
		float	scaling,
		float	value
	)

UpdateDbMetric()

void webrtc::aec3::UpdateDbMetric	(	const std::array< float, kFftLengthBy2Plus1 > &	value,
		std::array< EchoRemoverMetrics::DbMetric, 2 > *	statistic
	)