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juce::dsp::IIR::ArrayCoefficients< NumericType > Struct Template Reference

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

Static Public Member Functions

static std::array< NumericType, 4 > makeFirstOrderLowPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a first order low-pass filter.
 
static std::array< NumericType, 4 > makeFirstOrderHighPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a first order high-pass filter.
 
static std::array< NumericType, 4 > makeFirstOrderAllPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a first order all-pass filter.
 
static std::array< NumericType, 6 > makeLowPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a low-pass filter.
 
static std::array< NumericType, 6 > makeLowPass (double sampleRate, NumericType frequency, NumericType Q)
 Returns the coefficients for a low-pass filter with variable Q.
 
static std::array< NumericType, 6 > makeHighPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a high-pass filter.
 
static std::array< NumericType, 6 > makeHighPass (double sampleRate, NumericType frequency, NumericType Q)
 Returns the coefficients for a high-pass filter with variable Q.
 
static std::array< NumericType, 6 > makeBandPass (double sampleRate, NumericType frequency)
 Returns the coefficients for a band-pass filter.
 
static std::array< NumericType, 6 > makeBandPass (double sampleRate, NumericType frequency, NumericType Q)
 Returns the coefficients for a band-pass filter with variable Q.
 
static std::array< NumericType, 6 > makeNotch (double sampleRate, NumericType frequency)
 Returns the coefficients for a notch filter.
 
static std::array< NumericType, 6 > makeNotch (double sampleRate, NumericType frequency, NumericType Q)
 Returns the coefficients for a notch filter with variable Q.
 
static std::array< NumericType, 6 > makeAllPass (double sampleRate, NumericType frequency)
 Returns the coefficients for an all-pass filter.
 
static std::array< NumericType, 6 > makeAllPass (double sampleRate, NumericType frequency, NumericType Q)
 Returns the coefficients for an all-pass filter with variable Q.
 
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.
 
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.
 
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.
 

Detailed Description

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

A set of coefficients for use in an Filter object.

Member Function Documentation

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.

◆ 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.