BandLimitedLookupTable Class Reference

Lookup tables for holding bandlimited waveforms. More...

#include <gin_bandlimitedlookuptable.h>

Public Member Functions
	BandLimitedLookupTable ()=default
	BandLimitedLookupTable (std::function< float(float, float, float)> function, float sampleRate, int notesPerTable_=6, int tableSize_=2048)
void	reset (std::function< float(float, float, float)> function, float sampleRate, int notesPerTable_=6, int tableSize_=2048)
int	tableIndexForNote (float note)
std::vector< float > &	tableForNote (float note)
float	process (float note, float phase)
float	processLinear (float note, float phase)
float	get (int tableIndex, float phase)
float	getLinear (int tableIndex, float phase)
void	loadFromBuffer (std::unique_ptr< juce::dsp::FFT > &fft, float playbackSampleRate, juce::AudioSampleBuffer &buffer, float fileSampleRate, int notesPerTable)
	Load from an audio sample buffer, using an FFT to rerove high frequencies.
void	loadFromBuffer (float playbackSampleRate, juce::AudioSampleBuffer &buffer, float fileSampleRate, float fileFreq, int notesPerTable)
	Load from an audio sample buffer, using low pass filter to rerove high frequencies.

Public Attributes
std::vector< std::vector< float > >	tables
int	tableSize = 0
int	notesPerTable = 0

Detailed Description

Lookup tables for holding bandlimited waveforms.

Holds one waveform for every N number notes

Constructor & Destructor Documentation

BandLimitedLookupTable() [1/2]

BandLimitedLookupTable::BandLimitedLookupTable ( )

default

BandLimitedLookupTable() [2/2]

BandLimitedLookupTable::BandLimitedLookupTable	(	std::function< float(float, float, float)>	function,
		float	sampleRate,
		int	notesPerTable_ = 6,
		int	tableSize_ = 2048
	)

References reset().

Member Function Documentation

reset()

void BandLimitedLookupTable::reset	(	std::function< float(float, float, float)>	function,
		float	sampleRate,
		int	notesPerTable_ = 6,
		int	tableSize_ = 2048
	)

References getMidiNoteInHertz(), notesPerTable, tables, and tableSize.

Referenced by BandLimitedLookupTable().

tableIndexForNote()

int BandLimitedLookupTable::tableIndexForNote

(

float

note

)

References notesPerTable, and tables.

Referenced by tableForNote().

tableForNote()

std::vector< float > & BandLimitedLookupTable::tableForNote

(

float

note

)

References tableIndexForNote(), and tables.

Referenced by process(), and processLinear().

process()

float BandLimitedLookupTable::process	(	float	note,
		float	phase
	)

References tableForNote(), and tableSize.

processLinear()

float BandLimitedLookupTable::processLinear	(	float	note,
		float	phase
	)

References tableForNote(), and tableSize.

get()

float BandLimitedLookupTable::get	(	int	tableIndex,
		float	phase
	)

References tables, and tableSize.

getLinear()

float BandLimitedLookupTable::getLinear	(	int	tableIndex,
		float	phase
	)

References tables, and tableSize.

Referenced by BandLimitedLookupTables::processPulse(), BandLimitedLookupTables::processSawDown(), BandLimitedLookupTables::processSawUp(), BandLimitedLookupTables::processSine(), BandLimitedLookupTables::processSquare(), and BandLimitedLookupTables::processTriangle().

loadFromBuffer() [1/2]

void BandLimitedLookupTable::loadFromBuffer	(	std::unique_ptr< juce::dsp::FFT > &	fft,
		float	playbackSampleRate,
		juce::AudioSampleBuffer &	buffer,
		float	fileSampleRate,
		int	notesPerTable
	)

Load from an audio sample buffer, using an FFT to rerove high frequencies.

Usefull for wavetables.

loadFromBuffer() [2/2]

void BandLimitedLookupTable::loadFromBuffer	(	float	playbackSampleRate,
		juce::AudioSampleBuffer &	buffer,
		float	fileSampleRate,
		float	fileFreq,
		int	notesPerTable
	)

Load from an audio sample buffer, using low pass filter to rerove high frequencies.

Usefull for samples.

Member Data Documentation

tables

std::vector<std::vector<float> > BandLimitedLookupTable::tables

Referenced by get(), getLinear(), BandLimitedLookupTables::processPulse(), BandLimitedLookupTables::processSawDown(), BandLimitedLookupTables::processSawUp(), BandLimitedLookupTables::processSquare(), BandLimitedLookupTables::processTriangle(), reset(), tableForNote(), and tableIndexForNote().

tableSize

int BandLimitedLookupTable::tableSize = 0

Referenced by get(), getLinear(), process(), processLinear(), and reset().

notesPerTable

int BandLimitedLookupTable::notesPerTable = 0

Referenced by BandLimitedLookupTables::processSawDown(), BandLimitedLookupTables::processSawUp(), BandLimitedLookupTables::processTriangle(), reset(), and tableIndexForNote().

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

• gin_bandlimitedlookuptable.h