/*
<This Java Class is part of the jMusic API version 1.5, March 2004.>
Copyright (C) 2000 Andrew Sorensen & Andrew Brown
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or any
later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package jm.audio.synth;
import jm.audio.AOException;
import jm.audio.AudioObject;
import jm.audio.math.RealFloatFFT_Radix2;
/**
* An FFT transformation from time to frq.
*
* @author Andrew Sorensen
* @version 1.0, Sun Feb 25 18:42:46 2001
*/
public final class FFT extends AudioObject {
//----------------------------------------------
// Constructors
//----------------------------------------------
/**
*
*/
public FFT(AudioObject ao) {
super(ao, "[FFT]");
}
//----------------------------------------------
// Methods
//----------------------------------------------
/**
* Process each buffer of samples in turn.
*/
public int work(float[] buffer) throws AOException {
int returned = this.previous[0].nextWork(buffer);
RealFloatFFT_Radix2 fft = null;
fft = new RealFloatFFT_Radix2(inst.getBufSize());
fft.transform(buffer);
return returned;
}
}