Audio::FBiquadFilter Class Reference

#include <Filter.h>

Classes
struct	FBiquadCoeff

Public Member Functions
SIGNALPROCESSING_API	FBiquadFilter ()
virtual SIGNALPROCESSING_API	~FBiquadFilter ()
SIGNALPROCESSING_API void	Init (const float InSampleRate, const int32 InNumChannels, const EBiquadFilter::Type InType, const float InCutoffFrequency=20000.0f, const float InBandwidth=2.0f, const float InGain=0.0f)
SIGNALPROCESSING_API int32	GetNumChannels () const
SIGNALPROCESSING_API void	Reset ()
SIGNALPROCESSING_API void	ProcessAudioFrame (const float *InFrame, float *OutFrame)
SIGNALPROCESSING_API void	ProcessAudio (const float *InBuffer, const int32 InNumSamples, float *OutBuffer)
SIGNALPROCESSING_API void	ProcessAudio (const float *const *InBuffers, const int32 InNumSamples, float *const *OutBuffers)
SIGNALPROCESSING_API void	SetParams (const EBiquadFilter::Type InFilterType, const float InCutoffFrequency, const float InBandwidth, const float InGainDB)
SIGNALPROCESSING_API void	SetType (const EBiquadFilter::Type InType)
SIGNALPROCESSING_API void	SetFrequency (const float InCutoffFrequency)
SIGNALPROCESSING_API void	SetBandwidth (const float InBandwidth)
SIGNALPROCESSING_API void	SetGainDB (const float InGainDB)
SIGNALPROCESSING_API void	SetEnabled (const bool bInEnabled)
SIGNALPROCESSING_API void	ArrayCalculateResponseInPlace (TArrayView< float > InOutComplexValues) const

Protected Member Functions
SIGNALPROCESSING_API void	CalculateBiquadCoefficients ()
SIGNALPROCESSING_API float	ClampCutoffFrequency (float InCutoffFrequency)

Protected Attributes
EBiquadFilter::Type	FilterType
FBiquadCoeff *	Biquad
float	SampleRate
int32	NumChannels
float	Frequency
float	Bandwidth
float	GainDB
bool	bEnabled

Constructor & Destructor Documentation

FBiquadFilter()

Audio::FBiquadFilter::FBiquadFilter

(

)

~FBiquadFilter()

Audio::FBiquadFilter::~FBiquadFilter ( )

virtual

Member Function Documentation

ArrayCalculateResponseInPlace()

void Audio::FBiquadFilter::ArrayCalculateResponseInPlace

(

TArrayView< float >

InOutComplexValues

)

const

CalculateBiquadCoefficients()

void Audio::FBiquadFilter::CalculateBiquadCoefficients ( )

protected

ClampCutoffFrequency()

float Audio::FBiquadFilter::ClampCutoffFrequency ( float  InCutoffFrequency )

protected

GetNumChannels()

int32 Audio::FBiquadFilter::GetNumChannels

(

)

const

Init()

void Audio::FBiquadFilter::Init	(	const float	InSampleRate,
		const int32	InNumChannels,
		const EBiquadFilter::Type	InType,
		const float	InCutoffFrequency = 20000.0f,
		const float	InBandwidth = 2.0f,
		const float	InGain = 0.0f
	)

ProcessAudio() [1/2]

void Audio::FBiquadFilter::ProcessAudio	(	const float *const *	InBuffers,
		const int32	InNumSamples,
		float *const *	OutBuffers
	)

ProcessAudio() [2/2]

void Audio::FBiquadFilter::ProcessAudio	(	const float *	InBuffer,
		const int32	InNumSamples,
		float *	OutBuffer
	)

ProcessAudioFrame()

void Audio::FBiquadFilter::ProcessAudioFrame	(	const float *	InFrame,
		float *	OutFrame
	)

Reset()

void Audio::FBiquadFilter::Reset

(

)

SetBandwidth()

void Audio::FBiquadFilter::SetBandwidth

(

const float

InBandwidth

)

SetEnabled()

void Audio::FBiquadFilter::SetEnabled

(

const bool

bInEnabled

)

SetFrequency()

void Audio::FBiquadFilter::SetFrequency

(

const float

InCutoffFrequency

)

SetGainDB()

void Audio::FBiquadFilter::SetGainDB

(

const float

InGainDB

)

SetParams()

void Audio::FBiquadFilter::SetParams	(	const EBiquadFilter::Type	InFilterType,
		const float	InCutoffFrequency,
		const float	InBandwidth,
		const float	InGainDB
	)

SetType()

void Audio::FBiquadFilter::SetType

(

const EBiquadFilter::Type

InType

)

Member Data Documentation

Bandwidth

float Audio::FBiquadFilter::Bandwidth

protected

bEnabled

bool Audio::FBiquadFilter::bEnabled

protected

Biquad

FBiquadCoeff* Audio::FBiquadFilter::Biquad

protected

FilterType

EBiquadFilter::Type Audio::FBiquadFilter::FilterType

protected

Frequency

float Audio::FBiquadFilter::Frequency

protected

GainDB

float Audio::FBiquadFilter::GainDB

protected

NumChannels

int32 Audio::FBiquadFilter::NumChannels

protected

SampleRate

float Audio::FBiquadFilter::SampleRate

protected

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The documentation for this class was generated from the following files:

• Engine/Source/Runtime/SignalProcessing/Public/DSP/Filter.h
• Engine/Source/Runtime/SignalProcessing/Private/Filter.cpp