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FGranularSynth

A stereo granulator.

API > API/Runtime > API/Runtime/SignalProcessing

A stereo granulator.

   
Name FGranularSynth
Type class
Header File /Engine/Source/Runtime/SignalProcessing/Public/DSP/Granulator.h
Include Path #include "DSP/Granulator.h"

Syntax

class FGranularSynth

Constructors

Name Remarks Include Path Unreal Specifiers

FGranularSynth()

   DSP/Granulator.h  

Destructors

Name Remarks Include Path Unreal Specifiers

~FGranularSynth()

   DSP/Granulator.h  

Structs

Name Remarks
FGrainParam Current grain azimuth modulation.

Functions

Public

Name Remarks Include Path Unreal Specifiers

void Generate ( float* OutAudiobuffer,
const int32 NumFrames
)

 Generate the next audio buffer. DSP/Granulator.h  

float GetCurrentPlayheadTime()

 Get current playback time (in granular mode) DSP/Granulator.h  

int32 GetNumActiveGrains()

 Return the number of currently active grains. DSP/Granulator.h  

float GetSampleDuration()

 Returns the duration of the internal loaded sample buffer. DSP/Granulator.h  

void Init ( const int32 InSampleRate,
const int32 InNumInitialGrains
)

   DSP/Granulator.h  

void LoadSampleBuffer ( const TSampleBuffer< int16 >& InSampleBuffer
)

 Loads a sound wave to use for granular synth mode. DSP/Granulator.h  

void NoteOff ( const uint32 InMidiNote,
const bool bKill
)

 Note off, triggers release envelope. DSP/Granulator.h  

void NoteOn ( const uint32 InMidiNote,
const float InVelocity,
const float InDurationSec
)

 Plays a granular synthesis "Note". DSP/Granulator.h  

void SeekTime ( const float InTimeSec,
const float LerpTimeSec,
const ESeekType::Type InSeekType
)

 Seeks the loaded buffer used for granulation. Grains will spawn from this location. DSP/Granulator.h  

void SetAttackTime ( const float InAttackTimeMSec
)

 Sets the granular synth attack time. DSP/Granulator.h  

void SetDecayTime ( const float InDecayTimeMSec
)

 Sets the granular synth decay time. DSP/Granulator.h  

void SetGrainDuration ( const float InBaseDuration,
const FVector2D InDurationRange
)

 Sets the grain duration. DSP/Granulator.h  

void SetGrainDurationScale ( const float InDurationScale
)

 Sets the grain duration modulation. DSP/Granulator.h  

void SetGrainEnvelopeType ( const EGrainEnvelopeType InGrainEnvelopeType
)

 Sets the envelope type to use for new grains. Will instantly switch all grains to this envelope type so may cause discontinuities if switched while playing. DSP/Granulator.h  

void SetGrainFrequency ( const float InFrequency,
const FVector2D InPitchRange
)

 Sets the grain frequency. DSP/Granulator.h  

void SetGrainFrequencyModulation ( const float InFrequencyModulation
)

 Sets the grain frequency modulation. DSP/Granulator.h  

void SetGrainOscType ( const EOsc::Type InGrainOscType
)

 Sets the grain oscillator type (for use with granular synthesis mode) DSP/Granulator.h  

void SetGrainPan ( const float InBasePan,
const FVector2D InPanRange
)

 Sets the grain azimuth (pan) and randomization range. DSP/Granulator.h  

void SetGrainPanModulation ( const float InPanModulation
)

 Sets the grain azimuth modulation - allows modulating actively playing grain azimuths. DSP/Granulator.h  

void SetGrainPitch ( const float InBasePitch,
const FVector2D InPitchRange
)

 Sets the base grain pitch and randomization range. DSP/Granulator.h  

void SetGrainPitchModulation ( const float InPitchModulation
)

 Sets the grain pitch modulation allows modulating actively playing grain pitches. DSP/Granulator.h  

void SetGrainProbability ( const float InGrainProbability
)

 The probability at which a grain will occur when a grain tries to spawn. Allows for sporatic grain generation. DSP/Granulator.h  

void SetGrainsPerSecond ( const float InNumberOfGrainsPerSecond
)

 The rate at which new grains are attempted to be spawned. DSP/Granulator.h  

void SetGrainVolume ( const float InBaseVolume,
const FVector2D InVolumeRange
)

 Sets the base grain volume and randomization range. DSP/Granulator.h  

void SetGrainVolumeModulation ( const float InVolumeModulation
)

 Sets the grain modulation allows modulating actively playing grain volumes. DSP/Granulator.h  

void SetPlaybackSpeed ( const float InPlaybackSpeed
)

 Sets how fast the granular play head for granulation is is played (and in what direction) DSP/Granulator.h  

void SetReleaseTime ( const float InReleaseTimeMSec
)

 Sets the granular synth releas etime. DSP/Granulator.h  

void SetScrubMode ( const bool bIsScrubMode
)

 Sets whether or not the buffer playback advances on its own or if it just sits in one place. DSP/Granulator.h  

void SetSustainGain ( const float InSustainGain
)

 Sets the granular synth sustain gain. DSP/Granulator.h  

Protected

Name Remarks Include Path Unreal Specifiers

float GetWrappedPlayheadPosition ( float PlayheadFrame
)

 Return wrapped playhead position. DSP/Granulator.h  

void SpawnGrain()

 Spawns grains. DSP/Granulator.h  

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