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  3. FTapDelayPitchShifter

FTapDelayPitchShifter

Class which reads doppler-shifted tap from a delay buffer.

API > API/Runtime > API/Runtime/SignalProcessing > API/Runtime/SignalProcessing/DSP

References

   
Module SignalProcessing
Header /Engine/Source/Runtime/SignalProcessing/Public/DSP/TapDelayPitchShifter.h
Include #include "DSP/TapDelayPitchShifter.h"

Syntax

class FTapDelayPitchShifter

Remarks

Class which reads doppler-shifted tap from a delay buffer.

Constructors

  Type Name Description
Public function   Constructor.

Destructors

  Type Name Description
Public function Virtual   Virtual Destructor.

Functions

  Type Name Description
Public function void

Init ( const float InSampleRate,
const float InPitchShift,
const float InDelayLength
)

 Initialization of the internal delay with given sample rate, pitch shift in semitones, and delay length in milliseconds.
Public function void

ProcessAudio ( Audio::FDelay& InDelayBuffer,
const float* InAudioBuffer,
const int32 InNumFrames,
float* OutAudioBuffer
)

 Process whole block of audio reading to and writing from delay line from input buffer.
Public function float

ReadDopplerShiftedTapFromDelay ( const Audio::FDelay& InDelayBuffer,
const float ReadOffsetMilliseconds
)

 Reads the next sample tap from the input delay buffer.
Public function void

SetDelayLength ( const float InDelayLength
)

 Sets the internal delay line length.
Public function void

SetPitchShift ( const float InPitchScaleSemitones
)

 Sets the pitch shift in semitones.
Public function void

SetPitchShiftRatio ( const float InPitchShiftRatio
)

 Sets the pitch shift in terms of a sample rate ratio.

Constants

Name Description
MaxAbsPitchShiftInOctaves  
MaxDelayLength  
MinDelayLength  

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