#include <KrotosAudioBufferDSP.h>

Inheritance diagram for krotos::KrotosAudioBufferDSP:

Public Types
enum class	SegmentationMethod { SegmentationNone = 0 , STFT = 32 , EnvOnset = 64 , OverlapWindow = 96 , SuperFlux = 128 , NUM_SEGMENTATIONS = 129 }

enum class	FeatureExtrMethod { FeatureExtrMethodNone = 0 , Harmonic_PitchEstimation = 1 , MFCC_PCA = 32 , Centroid_Level = 64 , SpCentroid_RMS = 96 , SpFlatness_RMS = 128 , ERBSpCentroid_RMS = 160 , ERBSpCentroid_ERBSpFlatness = 192 , NUM_FEATUREMETHODS = 193 }

enum class	AnalysisScheme { SchemeNone = 0 , Vehicle , GeneralScheme , NUM_SCHEMES }

Public Types inherited from krotos::KrotosAudioBuffer
enum	BufferType { Samples = 0 , Spectral }

enum	InterpolationType { Linear = 0 , Cubic , Cosine , Cubic3d , NUM_TYPES }

Public Member Functions
	KrotosAudioBufferDSP ()

	~KrotosAudioBufferDSP ()

void	exitSignalSent () override

void	generalScheme ()

void	writeSpectrogramToFile (const std::vector< std::vector< float > > &spectrogram, const juce::String filename)

void	writeFeatureToFile (const std::vector< float > &feature, const std::string &filename)

float	crossCorrelate (const float referencePointer, const float candidatePointer, const int testSize)
	crossCorrelate - Perform a cross-correlation function

float	autoCorrelateCentred (int centerIndex, int testSize)
	autoCorrelateCentred - Autocorrelate both sides of supplied index

int	calcFreeGrain (int centerIndex, int previousGrainSize, GrainRange range)
	calcFreeGrain - find the next grain size

void	setPhaseAnalysisCoefficients (AnalysisCoefficientsPhase coeff)

int	size ()

float *	data ()

AnalysisCoefficients &	getAnalysisCoefficients ()

void	analyse ()
	analyse Analyses the audio waveform stored in the buffer according to the selected scheme This method needs to be non-blocking so it doesn't hold up the message thread. If there is already an analysis in progress, this method will ask the thread to exit then restart it

void	analysePhase ()

void	setDefaultPhaseAnalysisCoefficients ()

void	invalidate ()

void	validate ()

bool	analysisResultsAreValid ()

void	triggerDisplayCacheRegeneration ()

bool	shouldRegenerateDisplayCache ()

bool	scanForGrainsFreeMarker (std::vector< int > &returnGrains, const int audioIndexStart, const int useableIndexEnd, const int startGrainSize)

bool	scanBackwardsForGrainsFreeMarker (std::vector< int > &returnGrains, const int audioIndexStart, const int useableIndexEnd, const int startGrainSize)

void	buildDescriptors (std::vector< AudioDescriptor > &descriptors, const std::vector< int > &grainsList, const int startGrainAudioIndex, bool goingBackwards)

void	setAnalysisWavRange (float start, float end)
	setAnalysisWavRange - define a subset of the audio range for analysis

void	setAnalysisGrainSizeRange ()
	Set the frequency range we want to analyse for.

std::vector< AudioDescriptor > &	getGrainDescriptionByTime ()

std::vector< AudioDescriptor > &	getGrainDescriptionByZ ()

std::size_t	getNearestNeighbour2D (float x, float y)

std::vector< std::size_t >	getNearestNeighbour2D (float x, float y, std::size_t k)

std::vector< std::size_t >	getNearestNeighbour2D (float x, float y, float search_radius)

std::size_t	getNearestNeighbour3D (float x, float y, float z)

std::vector< std::size_t >	getNearestNeighbour3D (float x, float y, float z, std::size_t k)

std::vector< std::size_t >	getNearestNeighbour3D (float x, float y, float z, float search_radius)

void	setTrackingValue (float newValue)

void	setTrackingCycles (float newValue)

AudioDescriptor &	audioIndexToDescriptor (int audioIndex)

AudioDescriptor &	audioPercentToDescriptor (float audioPercent)

AudioDescriptor &	audioFrequencyToDescriptor (float frequency)

void	clampGrainDescriptionByTimeIndex (size_t &index)

StereoSample	getSampleFromGrainPhase (double grainPhase)

double	getFrequencyFromGrainPhase (double grainPhase)

ProgressTracker &	getProgressTracker ()
	Get a reference to this buffer's ProgressTracker.

SegmentationMethod	getSegmentationMethod () const

FeatureExtrMethod	getFeatureExtractionMethod ()

AnalysisScheme	getAnalysisScheme ()

void	setSegmentationMethod (SegmentationMethod segmentation)

void	setFeatureExtrMethod (FeatureExtrMethod featureExtraction)

void	setAnalysisScheme (AnalysisScheme scheme)

Public Member Functions inherited from krotos::KrotosAudioBuffer
	KrotosAudioBuffer ()

	KrotosAudioBuffer (int channels, int size)

	KrotosAudioBuffer (const AudioBuffer< float > &buffer)
	Creates a krotos buffer from a juce buffer.

	KrotosAudioBuffer (const AudioBuffer< float > &buffer, int numOfChannels)
	Creates a krotos buffer from a juce buffer but with a new number of channels, this constructor tries to be as efficient as possible by not reallocating or clearing the extra space.

	~KrotosAudioBuffer ()

float	getPeak (int channel) const

float	getRMS (int channel) const

void	setSize (int newNumChannels, int numSamples, bool keepExistingContent=true, bool clearExtraSpace=true, bool avoidReallocating=true)

void	setSize (KrotosAudioBuffer &prototypeBuffer)

void	copyFrom (int destChannel, const float *source, int numSamples)

void	copyFrom (KrotosAudioBuffer &sourceBuffer)

void	addFrom (int destChannel, const float *source, int numSamples)

void	addFrom (KrotosAudioBuffer &srcBuffer)

void	processWetDry (KrotosAudioBuffer &wetBuffer, SmoothedFloat &wetDryValue)

void	processGain (SmoothedFloat &gainFactor)

void	processGain (float gainFactor)

void	processPan (SmoothedFloat &panValue)

bool	processClamp (float clampValue)

void	fillWithNoise ()

void	processMute (MuteStateMachine &state)

void	setDataValid (bool state)

bool	isDataValid () const

void	setSampleRate (float sampleRate)

float	getSampleRate (void)

void	setSourceSampleRate (float sampleRate)

float	getSourceSampleRate (void)

float	getNativeNoteFrequency (void)

void	setInterpolationType (InterpolationType newInterpolationType)

StereoSample	makeRamp (StereoSample startValue, int samples)
	Create a ramp in the buffer.

StereoSample	getLastSample ()
	Get the last stereo sample from the audio buffer.

StereoSample	getInterpolatedSample (double index)
	Get a stereo sample from the audio buffer.

float	getInterpolatedSampleMono (float playHead)

KrotosAudioBuffer	getMonoBuffer ()

void	reverse (int channel, int startSample, int numSamples)

void	reverse (int startSample, int numSamples)

juce::AudioBuffer< float > &	getJuceAudioBuffer ()

void	equalPowerCrossFadeFrom (const KrotosAudioBuffer &previousBuffer)

float	findAbsMax ()

void	normaliseTo (float scale)

Private Member Functions
void	timerCallback () override

void	run () override

void	cleanupAnalysis ()

std::vector< float >	averageBufferToMono ()

std::vector< std::vector< float > >	segmentOnsetSlices (std::vector< int > onsetPositions, std::vector< float > signalBufferMono)

std::vector< std::vector< float > >	segmentChunks (std::vector< int > onsetPositions, std::vector< float > signalBufferMono, std::size_t window_length)

std::vector< int >	chunk (const std::vector< float > &bufferVector, std::size_t window_length, std::size_t hop_length)

std::vector< int >	envelopeOnsetDetection (const std::vector< float > &bufferVector, float samplerate)

std::vector< int >	superFluxOnsetDetection (float samplerate)

std::vector< AudioDescriptor >	getDescriptorsTime (const std::vector< std::vector< float > > &timeDomainSlices, const std::vector< int > &onsetPositions)

std::vector< std::vector< float > >	mfccFeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices, const std::vector< int > &onsetPositions)

std::vector< std::vector< float > >	temporalFeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	specCntrRMS_FeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	specFlatnessRMS_FeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	erbSpecCentroidRMS_FeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	erbSpecCentroidFlatness_FeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	harmonicPitchEstimation (std::vector< std::vector< float > > &timeDomainSlices)

std::vector< std::vector< float > >	pitchPeakRMSFeatureExtraction (std::vector< std::vector< float > > &timeDomainSlices)

void	applyPCA (std::vector< std::vector< float > > &features, const std::size_t &n_components)

void	setFeaturesAndNormalise (const std::vector< std::vector< float > > &features, std::vector< AudioDescriptor > &descriptorsTime)

void	buildKNNIndex (const std::vector< AudioDescriptor > &descriptorsTime)

void	buildKNNIndexWithZ (const std::vector< AudioDescriptor > &descriptorsTime)

void	sortByZ (const std::vector< AudioDescriptor > &descriptorsTime)

Private Attributes
const int	ANALYSIS_TIMER_PERIOD {250}

SegmentationMethod	m_segmentationMethod {SegmentationMethod::SegmentationNone}

FeatureExtrMethod	m_featureMethod {FeatureExtrMethod::FeatureExtrMethodNone}

AnalysisScheme	m_analysisScheme {AnalysisScheme::SchemeNone}

AnalysisCoefficients	m_AnalysisCoefficients

ProgressTracker	m_progressTracker

float	m_trackingValue {0.5f}

float	m_trackingCycles {1.0f}

GrainRange	m_analysisGrainSizeRange

volatile std::atomic< bool >	m_trackingDataIsValid {false}

volatile std::atomic< bool >	m_requestDisplayCacheRegeneration {false}

std::vector< AudioDescriptor >	m_grainDescriptionByFrequency

std::vector< AudioDescriptor >	m_grainDescriptionByTime

std::vector< AudioDescriptor >	m_grainDescriptionByZ

std::unique_ptr< KDTree >	m_nnSearch

std::unique_ptr< KDTree >	m_grainMapper

std::unique_ptr< PCA >	m_principalComponentAnalysis

float	m_startPos {0.0f}

float	m_endPos {1.0f}

AnalysisCoefficientsPhase	m_phaseAnalysisCoefficients

std::vector< std::vector< float > >	m_timeDomainSlices

std::vector< int >	m_onsetPositions

std::vector< AudioDescriptor >	m_descriptorsTime

Additional Inherited Members
Static Public Member Functions inherited from krotos::KrotosAudioBuffer
static KrotosAudioBuffer	mixToMono (KrotosAudioBuffer &multiChannelBuffer)

Member Enumeration Documentation

◆ AnalysisScheme

enum class krotos::KrotosAudioBufferDSP::AnalysisScheme

strong

Enumerator
SchemeNone
Vehicle
GeneralScheme
NUM_SCHEMES

◆ FeatureExtrMethod

enum class krotos::KrotosAudioBufferDSP::FeatureExtrMethod

strong

Enumerator
FeatureExtrMethodNone
Harmonic_PitchEstimation
MFCC_PCA
Centroid_Level
SpCentroid_RMS
SpFlatness_RMS
ERBSpCentroid_RMS
ERBSpCentroid_ERBSpFlatness
NUM_FEATUREMETHODS

◆ SegmentationMethod

enum class krotos::KrotosAudioBufferDSP::SegmentationMethod

strong

Enumerator
SegmentationNone
STFT
EnvOnset
OverlapWindow
SuperFlux
NUM_SEGMENTATIONS

Constructor & Destructor Documentation

◆ KrotosAudioBufferDSP()

krotos::KrotosAudioBufferDSP::KrotosAudioBufferDSP ( )

◆ ~KrotosAudioBufferDSP()

krotos::KrotosAudioBufferDSP::~KrotosAudioBufferDSP ( )

inline

Member Function Documentation

◆ analyse()

void krotos::KrotosAudioBufferDSP::analyse ( )

analyse Analyses the audio waveform stored in the buffer according to the selected scheme This method needs to be non-blocking so it doesn't hold up the message thread. If there is already an analysis in progress, this method will ask the thread to exit then restart it

◆ analysePhase()

void krotos::KrotosAudioBufferDSP::analysePhase ( )

◆ analysisResultsAreValid()

bool krotos::KrotosAudioBufferDSP::analysisResultsAreValid ( )

inline

◆ applyPCA()

void krotos::KrotosAudioBufferDSP::applyPCA	(	std::vector< std::vector< float > > &	features,
		const std::size_t &	n_components )

private

◆ audioFrequencyToDescriptor()

AudioDescriptor & krotos::KrotosAudioBufferDSP::audioFrequencyToDescriptor ( float frequency )

◆ audioIndexToDescriptor()

AudioDescriptor & krotos::KrotosAudioBufferDSP::audioIndexToDescriptor ( int audioIndex )

◆ audioPercentToDescriptor()

AudioDescriptor & krotos::KrotosAudioBufferDSP::audioPercentToDescriptor ( float audioPercent )

◆ autoCorrelateCentred()

float krotos::KrotosAudioBufferDSP::autoCorrelateCentred	(	int	centerIndex,
		int	testSize )

autoCorrelateCentred - Autocorrelate both sides of supplied index

Parameters

centerIndex
testSize

Returns: result

◆ averageBufferToMono()

std::vector< float > krotos::KrotosAudioBufferDSP::averageBufferToMono ( )

private

Average Signal to Mono.

◆ buildDescriptors()

void krotos::KrotosAudioBufferDSP::buildDescriptors	(	std::vector< AudioDescriptor > &	descriptors,
		const std::vector< int > &	grainsList,
		const int	startGrainAudioIndex,
		bool	goingBackwards = false )

◆ buildKNNIndex()

void krotos::KrotosAudioBufferDSP::buildKNNIndex ( const std::vector< AudioDescriptor > & descriptorsTime )

private

◆ buildKNNIndexWithZ()

void krotos::KrotosAudioBufferDSP::buildKNNIndexWithZ ( const std::vector< AudioDescriptor > & descriptorsTime )

private

◆ calcFreeGrain()

int krotos::KrotosAudioBufferDSP::calcFreeGrain	(	int	centerIndex,
		int	previousGrainSize,
		GrainRange	range )

calcFreeGrain - find the next grain size

Parameters

centerIndex
previousGrainSize
range

Returns: result in samples

◆ chunk()

std::vector< int > krotos::KrotosAudioBufferDSP::chunk	(	const std::vector< float > &	bufferVector,
		std::size_t	window_length,
		std::size_t	hop_length )

private

◆ clampGrainDescriptionByTimeIndex()

void krotos::KrotosAudioBufferDSP::clampGrainDescriptionByTimeIndex ( size_t & index )

inline

◆ cleanupAnalysis()

void krotos::KrotosAudioBufferDSP::cleanupAnalysis ( )

private

Cleanup after analysis, called on thread exit

◆ crossCorrelate()

float krotos::KrotosAudioBufferDSP::crossCorrelate	(	const float *	referencePointer,
		const float *	candidatePointer,
		const int	testSize )

crossCorrelate - Perform a cross-correlation function

Parameters

referencePointer	- pointer to data
candidatePointer	- pointer to data
testSize	- size of data

Returns: returns result

◆ data()

float * krotos::KrotosAudioBufferDSP::data ( )

inline

◆ envelopeOnsetDetection()

std::vector< int > krotos::KrotosAudioBufferDSP::envelopeOnsetDetection	(	const std::vector< float > &	bufferVector,
		float	samplerate )

private

◆ erbSpecCentroidFlatness_FeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::erbSpecCentroidFlatness_FeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ erbSpecCentroidRMS_FeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::erbSpecCentroidRMS_FeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ exitSignalSent()

void krotos::KrotosAudioBufferDSP::exitSignalSent ( )

inlineoverride

◆ generalScheme()

void krotos::KrotosAudioBufferDSP::generalScheme ( )

◆ getAnalysisCoefficients()

AnalysisCoefficients & krotos::KrotosAudioBufferDSP::getAnalysisCoefficients ( )

◆ getAnalysisScheme()

AnalysisScheme krotos::KrotosAudioBufferDSP::getAnalysisScheme ( )

inline

◆ getDescriptorsTime()

std::vector< AudioDescriptor > krotos::KrotosAudioBufferDSP::getDescriptorsTime	(	const std::vector< std::vector< float > > &	timeDomainSlices,
		const std::vector< int > &	onsetPositions )

private

◆ getFeatureExtractionMethod()

FeatureExtrMethod krotos::KrotosAudioBufferDSP::getFeatureExtractionMethod ( )

inline

◆ getFrequencyFromGrainPhase()

double krotos::KrotosAudioBufferDSP::getFrequencyFromGrainPhase ( double grainPhase )

inline

◆ getGrainDescriptionByTime()

std::vector< AudioDescriptor > & krotos::KrotosAudioBufferDSP::getGrainDescriptionByTime ( )

inline

◆ getGrainDescriptionByZ()

std::vector< AudioDescriptor > & krotos::KrotosAudioBufferDSP::getGrainDescriptionByZ ( )

inline

◆ getNearestNeighbour2D() [1/3]

std::size_t krotos::KrotosAudioBufferDSP::getNearestNeighbour2D	(	float	x,
		float	y )

inline

◆ getNearestNeighbour2D() [2/3]

std::vector< std::size_t > krotos::KrotosAudioBufferDSP::getNearestNeighbour2D	(	float	x,
		float	y,
		float	search_radius )

inline

◆ getNearestNeighbour2D() [3/3]

std::vector< std::size_t > krotos::KrotosAudioBufferDSP::getNearestNeighbour2D	(	float	x,
		float	y,
		std::size_t	k )

inline

◆ getNearestNeighbour3D() [1/3]

std::size_t krotos::KrotosAudioBufferDSP::getNearestNeighbour3D	(	float	x,
		float	y,
		float	z )

inline

◆ getNearestNeighbour3D() [2/3]

std::vector< std::size_t > krotos::KrotosAudioBufferDSP::getNearestNeighbour3D	(	float	x,
		float	y,
		float	z,
		float	search_radius )

inline

◆ getNearestNeighbour3D() [3/3]

std::vector< std::size_t > krotos::KrotosAudioBufferDSP::getNearestNeighbour3D	(	float	x,
		float	y,
		float	z,
		std::size_t	k )

inline

◆ getProgressTracker()

ProgressTracker & krotos::krotos::KrotosAudioBufferDSP::getProgressTracker ( )

Get a reference to this buffer's ProgressTracker.

Returns: Reference to ProgressTracker

◆ getSampleFromGrainPhase()

StereoSample krotos::KrotosAudioBufferDSP::getSampleFromGrainPhase ( double grainPhase )

inline

◆ getSegmentationMethod()

SegmentationMethod krotos::KrotosAudioBufferDSP::getSegmentationMethod ( ) const

inline

◆ harmonicPitchEstimation()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::harmonicPitchEstimation ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ invalidate()

void krotos::KrotosAudioBufferDSP::invalidate ( )

inline

◆ mfccFeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::mfccFeatureExtraction	(	std::vector< std::vector< float > > &	timeDomainSlices,
		const std::vector< int > &	onsetPositions )

private

◆ pitchPeakRMSFeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::pitchPeakRMSFeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ run()

void krotos::KrotosAudioBufferDSP::run ( )

overrideprivate

◆ scanBackwardsForGrainsFreeMarker()

bool krotos::KrotosAudioBufferDSP::scanBackwardsForGrainsFreeMarker	(	std::vector< int > &	returnGrains,
		const int	audioIndexStart,
		const int	useableIndexEnd,
		const int	startGrainSize )

◆ scanForGrainsFreeMarker()

bool krotos::KrotosAudioBufferDSP::scanForGrainsFreeMarker	(	std::vector< int > &	returnGrains,
		const int	audioIndexStart,
		const int	useableIndexEnd,
		const int	startGrainSize )

◆ segmentChunks()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::segmentChunks	(	std::vector< int >	onsetPositions,
		std::vector< float >	signalBufferMono,
		std::size_t	window_length )

private

◆ segmentOnsetSlices()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::segmentOnsetSlices	(	std::vector< int >	onsetPositions,
		std::vector< float >	signalBufferMono )

private

Create sub Buffers from the onsetPositions.

◆ setAnalysisGrainSizeRange()

void krotos::KrotosAudioBufferDSP::setAnalysisGrainSizeRange ( )

Set the frequency range we want to analyse for.

◆ setAnalysisScheme()

void krotos::KrotosAudioBufferDSP::setAnalysisScheme ( AnalysisScheme scheme )

inline

◆ setAnalysisWavRange()

void krotos::KrotosAudioBufferDSP::setAnalysisWavRange	(	float	start,
		float	end )

inline

setAnalysisWavRange - define a subset of the audio range for analysis

Parameters

start
end

◆ setDefaultPhaseAnalysisCoefficients()

void krotos::KrotosAudioBufferDSP::setDefaultPhaseAnalysisCoefficients ( )

◆ setFeatureExtrMethod()

void krotos::KrotosAudioBufferDSP::setFeatureExtrMethod ( FeatureExtrMethod featureExtraction )

inline

◆ setFeaturesAndNormalise()

void krotos::KrotosAudioBufferDSP::setFeaturesAndNormalise	(	const std::vector< std::vector< float > > &	features,
		std::vector< AudioDescriptor > &	descriptorsTime )

private

◆ setPhaseAnalysisCoefficients()

void krotos::KrotosAudioBufferDSP::setPhaseAnalysisCoefficients ( AnalysisCoefficientsPhase coeff )

inline

◆ setSegmentationMethod()

void krotos::KrotosAudioBufferDSP::setSegmentationMethod ( SegmentationMethod segmentation )

inline

◆ setTrackingCycles()

void krotos::KrotosAudioBufferDSP::setTrackingCycles ( float newValue )

inline

◆ setTrackingValue()

void krotos::KrotosAudioBufferDSP::setTrackingValue ( float newValue )

inline

◆ shouldRegenerateDisplayCache()

bool krotos::KrotosAudioBufferDSP::shouldRegenerateDisplayCache ( )

◆ size()

int krotos::KrotosAudioBufferDSP::size ( )

inline

◆ sortByZ()

void krotos::KrotosAudioBufferDSP::sortByZ ( const std::vector< AudioDescriptor > & descriptorsTime )

private

◆ specCntrRMS_FeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::specCntrRMS_FeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ specFlatnessRMS_FeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::specFlatnessRMS_FeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ superFluxOnsetDetection()

std::vector< int > krotos::KrotosAudioBufferDSP::superFluxOnsetDetection ( float samplerate )

private

◆ temporalFeatureExtraction()

std::vector< std::vector< float > > krotos::KrotosAudioBufferDSP::temporalFeatureExtraction ( std::vector< std::vector< float > > & timeDomainSlices )

private

◆ timerCallback()

void krotos::KrotosAudioBufferDSP::timerCallback ( )

overrideprivate

◆ triggerDisplayCacheRegeneration()

void krotos::KrotosAudioBufferDSP::triggerDisplayCacheRegeneration ( )

inline

◆ validate()

void krotos::KrotosAudioBufferDSP::validate ( )

inline

◆ writeFeatureToFile()

void krotos::KrotosAudioBufferDSP::writeFeatureToFile	(	const std::vector< float > &	feature,
		const std::string &	filename )

inline

◆ writeSpectrogramToFile()

void krotos::KrotosAudioBufferDSP::writeSpectrogramToFile	(	const std::vector< std::vector< float > > &	spectrogram,
		const juce::String	filename )

inline

Member Data Documentation

◆ ANALYSIS_TIMER_PERIOD

const int krotos::KrotosAudioBufferDSP::ANALYSIS_TIMER_PERIOD {250}

private

◆ m_AnalysisCoefficients

AnalysisCoefficients krotos::KrotosAudioBufferDSP::m_AnalysisCoefficients

private

◆ m_analysisGrainSizeRange

GrainRange krotos::KrotosAudioBufferDSP::m_analysisGrainSizeRange

private

◆ m_analysisScheme

AnalysisScheme krotos::KrotosAudioBufferDSP::m_analysisScheme {AnalysisScheme::SchemeNone}

private

◆ m_descriptorsTime

std::vector<AudioDescriptor> krotos::KrotosAudioBufferDSP::m_descriptorsTime

private

◆ m_endPos

float krotos::KrotosAudioBufferDSP::m_endPos {1.0f}

private

◆ m_featureMethod

FeatureExtrMethod krotos::KrotosAudioBufferDSP::m_featureMethod {FeatureExtrMethod::FeatureExtrMethodNone}

private

◆ m_grainDescriptionByFrequency

std::vector<AudioDescriptor> krotos::KrotosAudioBufferDSP::m_grainDescriptionByFrequency

private

◆ m_grainDescriptionByTime

std::vector<AudioDescriptor> krotos::KrotosAudioBufferDSP::m_grainDescriptionByTime

private

◆ m_grainDescriptionByZ

std::vector<AudioDescriptor> krotos::KrotosAudioBufferDSP::m_grainDescriptionByZ

private

◆ m_grainMapper

std::unique_ptr<KDTree> krotos::KrotosAudioBufferDSP::m_grainMapper

private

◆ m_nnSearch

std::unique_ptr<KDTree> krotos::KrotosAudioBufferDSP::m_nnSearch

private

◆ m_onsetPositions

std::vector<int> krotos::KrotosAudioBufferDSP::m_onsetPositions

private

◆ m_phaseAnalysisCoefficients

AnalysisCoefficientsPhase krotos::KrotosAudioBufferDSP::m_phaseAnalysisCoefficients

private

◆ m_principalComponentAnalysis

std::unique_ptr<PCA> krotos::KrotosAudioBufferDSP::m_principalComponentAnalysis

private

◆ m_progressTracker

ProgressTracker krotos::KrotosAudioBufferDSP::m_progressTracker

private

◆ m_requestDisplayCacheRegeneration

volatile std::atomic<bool> krotos::KrotosAudioBufferDSP::m_requestDisplayCacheRegeneration {false}

private

◆ m_segmentationMethod

SegmentationMethod krotos::KrotosAudioBufferDSP::m_segmentationMethod {SegmentationMethod::SegmentationNone}

private

◆ m_startPos

float krotos::KrotosAudioBufferDSP::m_startPos {0.0f}

private

◆ m_timeDomainSlices

std::vector<std::vector<float> > krotos::KrotosAudioBufferDSP::m_timeDomainSlices

private

◆ m_trackingCycles

float krotos::KrotosAudioBufferDSP::m_trackingCycles {1.0f}

private

◆ m_trackingDataIsValid

volatile std::atomic<bool> krotos::KrotosAudioBufferDSP::m_trackingDataIsValid {false}

private

◆ m_trackingValue

float krotos::KrotosAudioBufferDSP::m_trackingValue {0.5f}

private

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

krotos_dsp/utilities/audio_buffer/KrotosAudioBufferDSP.h
krotos_dsp/utilities/audio_buffer/KrotosAudioBufferDSP.cpp
krotos_dsp/utilities/audio_buffer/KrotosAudioBufferDSPCorrelation.cpp
krotos_dsp/utilities/audio_buffer/KrotosAudioBufferDSPPhaseDetection.cpp

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ AnalysisScheme

◆ FeatureExtrMethod

◆ SegmentationMethod

Constructor & Destructor Documentation

◆ KrotosAudioBufferDSP()

◆ ~KrotosAudioBufferDSP()

Member Function Documentation

◆ analyse()

◆ analysePhase()

◆ analysisResultsAreValid()

◆ applyPCA()

◆ audioFrequencyToDescriptor()

◆ audioIndexToDescriptor()

◆ audioPercentToDescriptor()

◆ autoCorrelateCentred()

◆ averageBufferToMono()

◆ buildDescriptors()

◆ buildKNNIndex()

◆ buildKNNIndexWithZ()

◆ calcFreeGrain()

◆ chunk()

◆ clampGrainDescriptionByTimeIndex()

◆ cleanupAnalysis()

◆ crossCorrelate()

◆ data()

◆ envelopeOnsetDetection()

◆ erbSpecCentroidFlatness_FeatureExtraction()

◆ erbSpecCentroidRMS_FeatureExtraction()

◆ exitSignalSent()

◆ generalScheme()

◆ getAnalysisCoefficients()

◆ getAnalysisScheme()

◆ getDescriptorsTime()

◆ getFeatureExtractionMethod()

◆ getFrequencyFromGrainPhase()

◆ getGrainDescriptionByTime()

◆ getGrainDescriptionByZ()

◆ getNearestNeighbour2D() [1/3]

◆ getNearestNeighbour2D() [2/3]

◆ getNearestNeighbour2D() [3/3]

◆ getNearestNeighbour3D() [1/3]

◆ getNearestNeighbour3D() [2/3]

◆ getNearestNeighbour3D() [3/3]

◆ getProgressTracker()

◆ getSampleFromGrainPhase()

◆ getSegmentationMethod()

◆ harmonicPitchEstimation()

◆ invalidate()

◆ mfccFeatureExtraction()

◆ pitchPeakRMSFeatureExtraction()

◆ run()

◆ scanBackwardsForGrainsFreeMarker()

◆ scanForGrainsFreeMarker()

◆ segmentChunks()

◆ segmentOnsetSlices()

◆ setAnalysisGrainSizeRange()

◆ setAnalysisScheme()

◆ setAnalysisWavRange()

◆ setDefaultPhaseAnalysisCoefficients()

◆ setFeatureExtrMethod()

◆ setFeaturesAndNormalise()

◆ setPhaseAnalysisCoefficients()

◆ setSegmentationMethod()

◆ setTrackingCycles()

◆ setTrackingValue()

◆ shouldRegenerateDisplayCache()

◆ size()

◆ sortByZ()

◆ specCntrRMS_FeatureExtraction()

◆ specFlatnessRMS_FeatureExtraction()

◆ superFluxOnsetDetection()

◆ temporalFeatureExtraction()

◆ timerCallback()

◆ triggerDisplayCacheRegeneration()