import jm.audio.AudioObject;
import jm.audio.io.SampleIn;
import jm.audio.io.SampleOut;
import jm.audio.synth.*;
public final class SimpleReverbInst extends jm.audio.Instrument {
//----------------------------------------------
// Attributes
//----------------------------------------------
/**
* the name of the sample file
*/
private String fileName;
/**
* How many channels is the sound file we are using
*/
private int numOfChannels;
/**
* the base frequency of the sample file to be read in
*/
private double baseFreq;
/**
* should we play the wholeFile or just what we need for note duration
*/
private boolean wholeFile;
/**
* The points to use in the construction of Envelopes
*/
private EnvPoint[] pointArray = new EnvPoint[10];
//----------------------------------------------
// Constructor
//----------------------------------------------
/**
* Constructor
*/
public SimpleReverbInst(String fileName) {
this(fileName, 440.00);
}
public SimpleReverbInst(String fileName, double baseFreq) {
this(fileName, baseFreq, false);
}
public SimpleReverbInst(String fileName, double baseFreq, boolean wholeFile) {
this.fileName = fileName;
this.baseFreq = baseFreq;
this.wholeFile = wholeFile;
//envelope
EnvPoint[] tempArray = {
new EnvPoint((float) 0.0, (float) 0.0),
new EnvPoint((float) 0.1, (float) 1.0),
new EnvPoint((float) 0.4, (float) 0.5),
new EnvPoint((float) 0.95, (float) 0.4),
new EnvPoint((float) 1.0, (float) 0.0)
};
pointArray = tempArray;
}
//----------------------------------------------
// Methods
//----------------------------------------------
/**
* Create the Audio Chain for this Instrument
* and assign the primary Audio Object(s). The
* primary audio object(s) are the one or more
* objects which head up the chain(s)
*/
public void createChain() {
//define the chain
SampleIn sin = new SampleIn(this, fileName);
SampleIn sin2 = new SampleIn(this, fileName);
SampleIn sin3 = new SampleIn(this, fileName);
SampleIn sin4 = new SampleIn(this, fileName);
Comb comb = new Comb(sin, 20, 0.5);
Comb comb2 = new Comb(sin2, 100, 0.4);
Comb comb3 = new Comb(sin3, 70, 0.6);
Comb comb4 = new Comb(sin4, 50, 0.5);
AudioObject[] array = {comb, comb2, comb3, comb4};
Add add = new Add(array);
//AllPass ap = new AllPass(add,50,0.9);
Filter filter = new Filter(add, 2000.0, Filter.LOW_PASS);
Filter filter2 = new Filter(filter, 2000.0, Filter.HIGH_PASS);
ReSample reSample = new ReSample(filter2, this.baseFreq);
Volume vol = new Volume(reSample);
Envelope env = new Envelope(vol, pointArray);
StereoPan span = new StereoPan(env);
SampleOut sout = new SampleOut(span);
}
}