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JMusic - Java Music Library

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/*



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 java.io.IOException;

import jm.audio.AudioObject;
import jm.audio.AOException;
import jm.music.data.Note;

/**
 * The Smooth Audio Object is a simple filter. Any samples
 * that pass through the Smooth Object will have their amplitudes
 * avergaed with the previous sample.
 * @author Andrew Brown
 * @version 1.0, July 2003.
 */

public final class Smooth extends AudioObject{
        private float[] prevSampleValues;
        
	//----------------------------------------------
	// Constructors 
	//----------------------------------------------
	/**
	* The standard Smooth constructor takes a Single
	 * Audio Object as input.
	 * @param ao The single AudioObject taken as input.
	 */
	public Smooth(AudioObject ao){
	    super(ao, "[Smooth]");
	}
        
        public void build() {
            prevSampleValues = new float[channels];
            for(int i=0; iSmooth will average amplitude values.
	 */
	public int work(float[] buffer)throws AOException{
		int returned = this.previous[0].nextWork(buffer);
                for(int i=0;i