be.tarsos.dsp

Class PitchShifter

java.lang.Object

be.tarsos.dsp.PitchShifter

All Implemented Interfaces:

AudioProcessor

public class PitchShifter
extends java.lang.Object
implements AudioProcessor

This is a translation of code by Stephan M. Bernsee. See the following explanation on this code: Pitch shifting using the STFT.

Author:

Joren Six, Stephan M. Bernsee

Constructor Summary

Constructors

Constructor and Description
PitchShifter(double factor, double sampleRate, int size, int overlap)

Method Summary

Modifier and Type	Method and Description
boolean	process(AudioEvent audioEvent) Process the audio event.
void	processingFinished() Notify the AudioProcessor that no more data is available and processing has finished.
void	setPitchShiftFactor(float newPitchShiftFactor)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PitchShifter

public PitchShifter(double factor,
                    double sampleRate,
                    int size,
                    int overlap)

Method Detail

setPitchShiftFactor

public void setPitchShiftFactor(float newPitchShiftFactor)

process

public boolean process(AudioEvent audioEvent)

Description copied from interface: AudioProcessor

Process the audio event. Do the actual signal processing on an (optionally) overlapping buffer.

Specified by:

process in interface AudioProcessor

Parameters:

audioEvent - The audio event that contains audio data.

Returns:

False if the chain needs to stop here, true otherwise. This can be used to implement e.g. a silence detector.

processingFinished

public void processingFinished()

Description copied from interface: AudioProcessor

Notify the AudioProcessor that no more data is available and processing has finished. Can be used to deallocate resources or cleanup.

Specified by:

processingFinished in interface AudioProcessor