be.tarsos.dsp.pitch

Class GeneralizedGoertzel

java.lang.Object

be.tarsos.dsp.pitch.GeneralizedGoertzel

All Implemented Interfaces:

AudioProcessor

public class GeneralizedGoertzel
extends java.lang.Object
implements AudioProcessor

Goertzel algorithm generalized to non-integer multiples of fundamental frequency Petr Sysel and Pavel Rajmic

Author:

Joren Six

Constructor Summary

Constructors

Constructor and Description
GeneralizedGoertzel(float audioSampleRate, int bufferSize, double[] frequencies, Goertzel.FrequenciesDetectedHandler handler)

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.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeneralizedGoertzel

public GeneralizedGoertzel(float audioSampleRate,
                           int bufferSize,
                           double[] frequencies,
                           Goertzel.FrequenciesDetectedHandler handler)

Method Detail

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