be.hogent.tarsos.dsp
Class Oscilloscope

java.lang.Object
  be.hogent.tarsos.dsp.Oscilloscope

All Implemented Interfaces:

AudioProcessor

public class Oscilloscope
extends java.lang.Object
implements AudioProcessor

The oscilloscope generates a float array with array[i] an x coordinate in percentage array[i+1] the value of the amplitude in audio buffer array[i+2] another x coordinate in percentage array[i+3] the next amplitude in the audio buffer The implementation is based on the one by Dan Ellis found at http://www.ee.columbia.edu/~dpwe/resources/Processing/

Author:

Dan Ellis, Joren Six

Nested Class Summary

static interface

Oscilloscope.OscilloscopeEventHandler

Constructor Summary

Oscilloscope(Oscilloscope.OscilloscopeEventHandler handler)

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

Oscilloscope

public Oscilloscope(Oscilloscope.OscilloscopeEventHandler 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