A set of coefficients for use in an Filter object. More...

#include <juce_IIRFilter.h>

Collaboration diagram for juce::dsp::IIR::ArrayCoefficients< NumericType >:

Static Public Member Functions
static std::array< NumericType, 6 >	makeAllPass (double sampleRate, NumericType frequency)
	Returns the coefficients for an all-pass filter. More...

static std::array< NumericType, 6 >	makeAllPass (double sampleRate, NumericType frequency, NumericType Q)
	Returns the coefficients for an all-pass filter with variable Q. More...

static std::array< NumericType, 6 >	makeBandPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a band-pass filter. More...

static std::array< NumericType, 6 >	makeBandPass (double sampleRate, NumericType frequency, NumericType Q)
	Returns the coefficients for a band-pass filter with variable Q. More...

static std::array< NumericType, 4 >	makeFirstOrderAllPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a first order all-pass filter. More...

static std::array< NumericType, 4 >	makeFirstOrderHighPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a first order high-pass filter. More...

static std::array< NumericType, 4 >	makeFirstOrderLowPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a first order low-pass filter. More...

static std::array< NumericType, 6 >	makeHighPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a high-pass filter. More...

static std::array< NumericType, 6 >	makeHighPass (double sampleRate, NumericType frequency, NumericType Q)
	Returns the coefficients for a high-pass filter with variable Q. More...

static std::array< NumericType, 6 >	makeHighShelf (double sampleRate, NumericType cutOffFrequency, NumericType Q, NumericType gainFactor)
	Returns the coefficients for a high-pass shelf filter with variable Q and gain. More...

static std::array< NumericType, 6 >	makeLowPass (double sampleRate, NumericType frequency)
	Returns the coefficients for a low-pass filter. More...

static std::array< NumericType, 6 >	makeLowPass (double sampleRate, NumericType frequency, NumericType Q)
	Returns the coefficients for a low-pass filter with variable Q. More...

static std::array< NumericType, 6 >	makeLowShelf (double sampleRate, NumericType cutOffFrequency, NumericType Q, NumericType gainFactor)
	Returns the coefficients for a low-pass shelf filter with variable Q and gain. More...

static std::array< NumericType, 6 >	makeNotch (double sampleRate, NumericType frequency)
	Returns the coefficients for a notch filter. More...

static std::array< NumericType, 6 >	makeNotch (double sampleRate, NumericType frequency, NumericType Q)
	Returns the coefficients for a notch filter with variable Q. More...

static std::array< NumericType, 6 >	makePeakFilter (double sampleRate, NumericType centreFrequency, NumericType Q, NumericType gainFactor)
	Returns the coefficients for a peak filter centred around a given frequency, with a variable Q and gain. More...

Static Private Attributes
static constexpr NumericType	inverseRootTwo = static_cast<NumericType> (0.70710678118654752440L)

Detailed Description

template<typename NumericType>
struct juce::dsp::IIR::ArrayCoefficients< NumericType >

A set of coefficients for use in an Filter object.

@tags{DSP}

Member Function Documentation

◆ makeAllPass() [1/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeAllPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for an all-pass filter.

◆ makeAllPass() [2/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeAllPass	(	double	sampleRate,
		NumericType	frequency,
		NumericType	Q
	)

static

Returns the coefficients for an all-pass filter with variable Q.

◆ makeBandPass() [1/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeBandPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a band-pass filter.

◆ makeBandPass() [2/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeBandPass	(	double	sampleRate,
		NumericType	frequency,
		NumericType	Q
	)

static

Returns the coefficients for a band-pass filter with variable Q.

◆ makeFirstOrderAllPass()

template<typename NumericType >

static std::array<NumericType, 4> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeFirstOrderAllPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a first order all-pass filter.

◆ makeFirstOrderHighPass()

template<typename NumericType >

static std::array<NumericType, 4> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeFirstOrderHighPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a first order high-pass filter.

◆ makeFirstOrderLowPass()

template<typename NumericType >

static std::array<NumericType, 4> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeFirstOrderLowPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a first order low-pass filter.

◆ makeHighPass() [1/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeHighPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a high-pass filter.

◆ makeHighPass() [2/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeHighPass	(	double	sampleRate,
		NumericType	frequency,
		NumericType	Q
	)

static

Returns the coefficients for a high-pass filter with variable Q.

◆ makeHighShelf()

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeHighShelf	(	double	sampleRate,
		NumericType	cutOffFrequency,
		NumericType	Q,
		NumericType	gainFactor
	)

static

Returns the coefficients for a high-pass shelf filter with variable Q and gain.

The gain is a scale factor that the high frequencies are multiplied by, so values greater than 1.0 will boost the high frequencies, values less than 1.0 will attenuate them.

◆ makeLowPass() [1/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeLowPass	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a low-pass filter.

◆ makeLowPass() [2/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeLowPass	(	double	sampleRate,
		NumericType	frequency,
		NumericType	Q
	)

static

Returns the coefficients for a low-pass filter with variable Q.

◆ makeLowShelf()

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeLowShelf	(	double	sampleRate,
		NumericType	cutOffFrequency,
		NumericType	Q,
		NumericType	gainFactor
	)

static

Returns the coefficients for a low-pass shelf filter with variable Q and gain.

The gain is a scale factor that the low frequencies are multiplied by, so values greater than 1.0 will boost the low frequencies, values less than 1.0 will attenuate them.

◆ makeNotch() [1/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeNotch	(	double	sampleRate,
		NumericType	frequency
	)

static

Returns the coefficients for a notch filter.

◆ makeNotch() [2/2]

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makeNotch	(	double	sampleRate,
		NumericType	frequency,
		NumericType	Q
	)

static

Returns the coefficients for a notch filter with variable Q.

◆ makePeakFilter()

template<typename NumericType >

static std::array<NumericType, 6> juce::dsp::IIR::ArrayCoefficients< NumericType >::makePeakFilter	(	double	sampleRate,
		NumericType	centreFrequency,
		NumericType	Q,
		NumericType	gainFactor
	)

static

Returns the coefficients for a peak filter centred around a given frequency, with a variable Q and gain.

The gain is a scale factor that the centre frequencies are multiplied by, so values greater than 1.0 will boost the centre frequencies, values less than 1.0 will attenuate them.

Member Data Documentation

◆ inverseRootTwo

template<typename NumericType >

constexpr NumericType juce::dsp::IIR::ArrayCoefficients< NumericType >::inverseRootTwo = static_cast<NumericType> (0.70710678118654752440L)

staticconstexprprivate

The documentation for this struct was generated from the following file:

juce_dsp/processors/juce_IIRFilter.h

Static Public Member Functions

Static Private Attributes

Detailed Description

template<typename NumericType> struct juce::dsp::IIR::ArrayCoefficients< NumericType >

Member Function Documentation

◆ makeAllPass() [1/2]

◆ makeAllPass() [2/2]

◆ makeBandPass() [1/2]

◆ makeBandPass() [2/2]

◆ makeFirstOrderAllPass()

◆ makeFirstOrderHighPass()

◆ makeFirstOrderLowPass()

◆ makeHighPass() [1/2]

◆ makeHighPass() [2/2]

◆ makeHighShelf()

◆ makeLowPass() [1/2]

◆ makeLowPass() [2/2]

◆ makeLowShelf()

◆ makeNotch() [1/2]

◆ makeNotch() [2/2]

◆ makePeakFilter()

Member Data Documentation

◆ inverseRootTwo

template<typename NumericType>
struct juce::dsp::IIR::ArrayCoefficients< NumericType >