Granular clouds and spectral-freeze textures from live input. More...

#include <GranularProcessor.h>

Public Member Functions
void	prepare (const AudioSpec &spec, double bufferSeconds=4.0)
	Allocates the capture ring and grain pool.

void	reset () noexcept
	Kills all grains and clears the capture ring. RT-safe.

void	setGrainSize (T ms) noexcept
	Grain duration in milliseconds [10, 500] (default 80). Non-finite values are ignored.

void	setDensity (T perSecond) noexcept
	Grains per second [1, 200] (default 25). Non-finite values are ignored.

void	setJitter (T amount) noexcept
	Position jitter [0, 1]: how far back grains may start (default 0.3). Non-finite values are ignored.

void	setPitch (T semitones) noexcept
	Per-grain pitch shift in semitones [-24, +24] (default 0). Non-finite values are ignored.

void	setPitchJitter (T semitones) noexcept
	Random pitch spread per grain in semitones [0, 12] (default 0). Non-finite values are ignored.

void	setSpread (T amount) noexcept
	Stereo spread of grain panning [0, 1] (default 0.5). Non-finite values are ignored.

void	setFreeze (bool frozen) noexcept
	Freezes capture: grains keep playing the held history.

void	setMix (T mix) noexcept
	Dry/wet mix [0, 1] (default 1); smoothed linearly over one block. Non-finite values are ignored.

T	getGrainSize () const noexcept

T	getDensity () const noexcept

T	getJitter () const noexcept

T	getPitch () const noexcept

T	getPitchJitter () const noexcept

T	getSpread () const noexcept

bool	getFreeze () const noexcept

T	getMix () const noexcept

std::vector< uint8_t >	getState () const
	Serializes the parameter state (setup/UI threads; allocates).

bool	setState (const uint8_t *data, size_t size)
	Restores parameters from a blob (tolerant; rejects foreign ids).

void	processBlock (AudioBufferView< T > buffer) noexcept
	Processes a block in-place (1 or 2 channels). Pass-through until prepare() succeeds.

Static Public Member Functions
static constexpr int	getLatency () noexcept
	Zero: the cloud is parallel to the dry path.

Static Public Attributes
static constexpr int	kMaxGrains = 64

Detailed Description

template<FloatType T>
class dspark::GranularProcessor< T >

Granular clouds and spectral-freeze textures from live input.

Template Parameters

T	Sample type (float or double).

Definition at line 65 of file GranularProcessor.h.

Member Function Documentation

◆ getDensity()

template<FloatType T>

T dspark::GranularProcessor< T >::getDensity ( ) const

inlinenoexcept

Definition at line 186 of file GranularProcessor.h.

◆ getFreeze()

template<FloatType T>

bool dspark::GranularProcessor< T >::getFreeze ( ) const

inlinenoexcept

Definition at line 191 of file GranularProcessor.h.

◆ getGrainSize()

template<FloatType T>

T dspark::GranularProcessor< T >::getGrainSize ( ) const

inlinenoexcept

Definition at line 185 of file GranularProcessor.h.

◆ getJitter()

template<FloatType T>

T dspark::GranularProcessor< T >::getJitter ( ) const

inlinenoexcept

Definition at line 187 of file GranularProcessor.h.

◆ getLatency()

template<FloatType T>

static constexpr int dspark::GranularProcessor< T >::getLatency ( )

inlinestaticconstexprnoexcept

Zero: the cloud is parallel to the dry path.

Definition at line 195 of file GranularProcessor.h.

◆ getMix()

template<FloatType T>

T dspark::GranularProcessor< T >::getMix ( ) const

inlinenoexcept

Definition at line 192 of file GranularProcessor.h.

◆ getPitch()

template<FloatType T>

T dspark::GranularProcessor< T >::getPitch ( ) const

inlinenoexcept

Definition at line 188 of file GranularProcessor.h.

◆ getPitchJitter()

template<FloatType T>

T dspark::GranularProcessor< T >::getPitchJitter ( ) const

inlinenoexcept

Definition at line 189 of file GranularProcessor.h.

◆ getSpread()

template<FloatType T>

T dspark::GranularProcessor< T >::getSpread ( ) const

inlinenoexcept

Definition at line 190 of file GranularProcessor.h.

◆ getState()

template<FloatType T>

std::vector< uint8_t > dspark::GranularProcessor< T >::getState ( ) const

inline

Serializes the parameter state (setup/UI threads; allocates).

Definition at line 198 of file GranularProcessor.h.

◆ prepare()

template<FloatType T>

void dspark::GranularProcessor< T >::prepare	(	const AudioSpec &	spec,
		double	bufferSeconds = `4.0`
	)

inline

Allocates the capture ring and grain pool.

Invalid specs (non-positive/non-finite rate, block size or channel count) are ignored: the previous state is kept and an unprepared instance stays pass-through. A non-finite bufferSeconds falls back to the 4 s default.

Parameters

spec	Audio environment specification.
bufferSeconds	Capture history length, clamped to [0.5, 16] s (default 4 s).

Definition at line 84 of file GranularProcessor.h.

◆ processBlock()

template<FloatType T>

void dspark::GranularProcessor< T >::processBlock ( AudioBufferView< T > buffer )

inlinenoexcept

Processes a block in-place (1 or 2 channels). Pass-through until prepare() succeeds.

Definition at line 234 of file GranularProcessor.h.

◆ reset()

template<FloatType T>

void dspark::GranularProcessor< T >::reset ( )

inlinenoexcept

Kills all grains and clears the capture ring. RT-safe.

Definition at line 110 of file GranularProcessor.h.

◆ setDensity()

template<FloatType T>

void dspark::GranularProcessor< T >::setDensity ( T perSecond )

inlinenoexcept

Grains per second [1, 200] (default 25). Non-finite values are ignored.

Definition at line 133 of file GranularProcessor.h.

◆ setFreeze()

template<FloatType T>

void dspark::GranularProcessor< T >::setFreeze ( bool frozen )

inlinenoexcept

Freezes capture: grains keep playing the held history.

Definition at line 172 of file GranularProcessor.h.

◆ setGrainSize()

template<FloatType T>

void dspark::GranularProcessor< T >::setGrainSize ( T ms )

inlinenoexcept

Grain duration in milliseconds [10, 500] (default 80). Non-finite values are ignored.

Definition at line 125 of file GranularProcessor.h.

◆ setJitter()

template<FloatType T>

void dspark::GranularProcessor< T >::setJitter ( T amount )

inlinenoexcept

Position jitter [0, 1]: how far back grains may start (default 0.3). Non-finite values are ignored.

Definition at line 141 of file GranularProcessor.h.

◆ setMix()

template<FloatType T>

void dspark::GranularProcessor< T >::setMix ( T mix )

inlinenoexcept

Dry/wet mix [0, 1] (default 1); smoothed linearly over one block. Non-finite values are ignored.

Definition at line 179 of file GranularProcessor.h.

◆ setPitch()

template<FloatType T>

void dspark::GranularProcessor< T >::setPitch ( T semitones )

inlinenoexcept

Per-grain pitch shift in semitones [-24, +24] (default 0). Non-finite values are ignored.

Definition at line 149 of file GranularProcessor.h.

◆ setPitchJitter()

template<FloatType T>

void dspark::GranularProcessor< T >::setPitchJitter ( T semitones )

inlinenoexcept

Random pitch spread per grain in semitones [0, 12] (default 0). Non-finite values are ignored.

Definition at line 157 of file GranularProcessor.h.

◆ setSpread()

template<FloatType T>

void dspark::GranularProcessor< T >::setSpread ( T amount )

inlinenoexcept

Stereo spread of grain panning [0, 1] (default 0.5). Non-finite values are ignored.

Definition at line 165 of file GranularProcessor.h.

◆ setState()

template<FloatType T>

bool dspark::GranularProcessor< T >::setState	(	const uint8_t *	data,
		size_t	size
	)

inline

Restores parameters from a blob (tolerant; rejects foreign ids).

Definition at line 215 of file GranularProcessor.h.

Member Data Documentation

◆ kMaxGrains

template<FloatType T>

constexpr int dspark::GranularProcessor< T >::kMaxGrains = 64

staticconstexpr

Definition at line 68 of file GranularProcessor.h.

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

GranularProcessor.h

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

◆ getDensity()

◆ getFreeze()

◆ getGrainSize()

◆ getJitter()

◆ getLatency()

◆ getMix()

◆ getPitch()

◆ getPitchJitter()

◆ getSpread()

◆ getState()

◆ prepare()

◆ processBlock()

◆ reset()

◆ setDensity()

◆ setFreeze()

◆ setGrainSize()

◆ setJitter()

◆ setMix()

◆ setPitch()

◆ setPitchJitter()

◆ setSpread()

◆ setState()

Member Data Documentation

◆ kMaxGrains