be.hogent.tarsos.dsp.pitch
Class PitchProcessor

java.lang.Object
  be.hogent.tarsos.dsp.pitch.PitchProcessor

All Implemented Interfaces:

AudioProcessor

public class PitchProcessor
extends java.lang.Object
implements AudioProcessor

Is responsible to call a pitch estimation algorithm. It also calculates progress. The underlying pitch detection algorithm must implement the PitchDetector interface.

Author:

Joren Six

Nested Class Summary

static class

PitchProcessor.PitchEstimationAlgorithm A list of pitch estimation algorithms.

Constructor Summary

PitchProcessor(PitchProcessor.PitchEstimationAlgorithm algorithm, float sampleRate, int bufferSize, PitchDetectionHandler handler)
Initialize a new pitch processor.

Method Summary

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

PitchProcessor

public PitchProcessor(PitchProcessor.PitchEstimationAlgorithm algorithm,
                      float sampleRate,
                      int bufferSize,
                      PitchDetectionHandler handler)

Initialize a new pitch processor.

Parameters:

algorithm - An enum defining the algorithm.

sampleRate - The sample rate of the buffer (Hz).

bufferSize - The size of the buffer in samples.

handler - The handler handles detected pitch.

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