juce::dsp::Phaser< SampleType > Class Template Reference

A 6 stage phaser that modulates first order all-pass filters to create sweeping notches in the magnitude frequency response. More...

#include <juce_Phaser.h>

Collaboration diagram for juce::dsp::Phaser< SampleType >:

Public Member Functions
	Phaser ()
	Constructor. More...
void	prepare (const ProcessSpec &spec)
	Initialises the processor. More...
template<typename ProcessContext >
void	process (const ProcessContext &context) noexcept
	Processes the input and output samples supplied in the processing context. More...
void	reset ()
	Resets the internal state variables of the processor. More...
void	setCentreFrequency (SampleType newCentreHz)
	Sets the centre frequency (in Hz) of the phaser all-pass filters modulation. More...
void	setDepth (SampleType newDepth)
	Sets the volume (between 0 and 1) of the LFO modulating the phaser all-pass filters. More...
void	setFeedback (SampleType newFeedback)
	Sets the feedback volume (between -1 and 1) of the phaser. More...
void	setMix (SampleType newMix)
	Sets the amount of dry and wet signal in the output of the phaser (between 0 for full dry and 1 for full wet). More...
void	setRate (SampleType newRateHz)
	Sets the rate (in Hz) of the LFO modulating the phaser all-pass filters. More...

Private Member Functions
void	update ()

Private Attributes
AudioBuffer< SampleType >	bufferFrequency
SampleType	centreFrequency = 1300.0
SampleType	depth = 0.5
DryWetMixer< SampleType >	dryWet
SampleType	feedback = 0.0
std::vector< SmoothedValue< SampleType, ValueSmoothingTypes::Linear > >	feedbackVolume { 2 }
OwnedArray< FirstOrderTPTFilter< SampleType > >	filters
std::vector< SampleType >	lastOutput { 2 }
SampleType	mix = 0.5
SampleType	normCentreFrequency = 0.5
Oscillator< SampleType >	osc
SmoothedValue< SampleType, ValueSmoothingTypes::Linear >	oscVolume
SampleType	rate = 1.0
double	sampleRate = 44100.0
int	updateCounter = 0

Static Private Attributes
static constexpr int	maxUpdateCounter = 4
static constexpr int	numStages = 6

Detailed Description

template<typename SampleType>
class juce::dsp::Phaser< SampleType >

A 6 stage phaser that modulates first order all-pass filters to create sweeping notches in the magnitude frequency response.

This audio effect can be controlled with standard phaser parameters: the speed and depth of the LFO controlling the frequency response, a mix control, a feedback control, and the centre frequency of the modulation.

@tags{DSP}

Constructor & Destructor Documentation

Phaser()

template<typename SampleType >

juce::dsp::Phaser< SampleType >::Phaser

(

)

Constructor.

Member Function Documentation

prepare()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::prepare

(

const ProcessSpec &

spec

)

Initialises the processor.

process()

template<typename SampleType >

template<typename ProcessContext >

void juce::dsp::Phaser< SampleType >::process ( const ProcessContext &  context )

inlinenoexcept

Processes the input and output samples supplied in the processing context.

References juce::dsp::Phaser< SampleType >::bufferFrequency, juce::gl::counter, juce::dsp::Phaser< SampleType >::dryWet, juce::dsp::Phaser< SampleType >::feedbackVolume, juce::dsp::Phaser< SampleType >::filters, juce::dsp::AudioBlock< SampleType >::getSubBlock(), juce::AudioBuffer< Type >::getWritePointer(), juce::gl::input, int(), jassert, juce::jlimit(), juce::jmin(), juce::dsp::Phaser< SampleType >::lastOutput, juce::mapToLog10(), juce::dsp::Phaser< SampleType >::maxUpdateCounter, juce::gl::n, juce::dsp::Phaser< SampleType >::normCentreFrequency, juce::dsp::Phaser< SampleType >::numStages, juce::dsp::Phaser< SampleType >::osc, juce::dsp::Phaser< SampleType >::oscVolume, juce::gl::output, juce::dsp::Phaser< SampleType >::sampleRate, and juce::dsp::Phaser< SampleType >::updateCounter.

reset()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::reset

(

)

Resets the internal state variables of the processor.

setCentreFrequency()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::setCentreFrequency

(

SampleType

newCentreHz

)

Sets the centre frequency (in Hz) of the phaser all-pass filters modulation.

setDepth()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::setDepth

(

SampleType

newDepth

)

Sets the volume (between 0 and 1) of the LFO modulating the phaser all-pass filters.

setFeedback()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::setFeedback

(

SampleType

newFeedback

)

Sets the feedback volume (between -1 and 1) of the phaser.

Negative can be used to get specific phaser sounds.

setMix()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::setMix

(

SampleType

newMix

)

Sets the amount of dry and wet signal in the output of the phaser (between 0 for full dry and 1 for full wet).

setRate()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::setRate

(

SampleType

newRateHz

)

Sets the rate (in Hz) of the LFO modulating the phaser all-pass filters.

This rate must be lower than 100 Hz.

update()

template<typename SampleType >

void juce::dsp::Phaser< SampleType >::update ( )

private

Member Data Documentation

bufferFrequency

template<typename SampleType >

AudioBuffer<SampleType> juce::dsp::Phaser< SampleType >::bufferFrequency

private

Referenced by juce::dsp::Phaser< SampleType >::process().

centreFrequency

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::centreFrequency = 1300.0

private

depth

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::depth = 0.5

private

dryWet

template<typename SampleType >

DryWetMixer<SampleType> juce::dsp::Phaser< SampleType >::dryWet

private

Referenced by juce::dsp::Phaser< SampleType >::process().

feedback

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::feedback = 0.0

private

feedbackVolume

template<typename SampleType >

std::vector<SmoothedValue<SampleType, ValueSmoothingTypes::Linear> > juce::dsp::Phaser< SampleType >::feedbackVolume { 2 }

private

Referenced by juce::dsp::Phaser< SampleType >::process().

filters

template<typename SampleType >

OwnedArray<FirstOrderTPTFilter<SampleType> > juce::dsp::Phaser< SampleType >::filters

private

Referenced by juce::dsp::Phaser< SampleType >::process().

lastOutput

template<typename SampleType >

std::vector<SampleType> juce::dsp::Phaser< SampleType >::lastOutput { 2 }

private

Referenced by juce::dsp::Phaser< SampleType >::process().

maxUpdateCounter

template<typename SampleType >

constexpr int juce::dsp::Phaser< SampleType >::maxUpdateCounter = 4

staticconstexprprivate

Referenced by juce::dsp::Phaser< SampleType >::process().

mix

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::mix = 0.5

private

normCentreFrequency

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::normCentreFrequency = 0.5

private

Referenced by juce::dsp::Phaser< SampleType >::process().

numStages

template<typename SampleType >

constexpr int juce::dsp::Phaser< SampleType >::numStages = 6

staticconstexprprivate

Referenced by juce::dsp::Phaser< SampleType >::process().

osc

template<typename SampleType >

Oscillator<SampleType> juce::dsp::Phaser< SampleType >::osc

private

Referenced by juce::dsp::Phaser< SampleType >::process().

oscVolume

template<typename SampleType >

SmoothedValue<SampleType, ValueSmoothingTypes::Linear> juce::dsp::Phaser< SampleType >::oscVolume

private

Referenced by juce::dsp::Phaser< SampleType >::process().

rate

template<typename SampleType >

SampleType juce::dsp::Phaser< SampleType >::rate = 1.0

private

sampleRate

template<typename SampleType >

double juce::dsp::Phaser< SampleType >::sampleRate = 44100.0

private

Referenced by juce::dsp::Phaser< SampleType >::process().

updateCounter

template<typename SampleType >

int juce::dsp::Phaser< SampleType >::updateCounter = 0

private

Referenced by juce::dsp::Phaser< SampleType >::process().

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

• juce_Phaser.h