import jm.audio.AudioObject;
import jm.audio.io.SampleOut;
import jm.audio.synth.Add;
import jm.audio.synth.Envelope;
import jm.audio.synth.Oscillator;
//import jm.audio.lang.*;
/**
* A basic amplitude modulation synthesis instrument
* which implements envelope and volume control
*
* @author Andrew Brown
*/
public final class AddInst extends jm.audio.Instrument {
//----------------------------------------------
// Attributes
//----------------------------------------------
/**
* the sample rate passed to the instrument
*/
private int sampleRate;
/**
* the sample rate passed to the instrument
*/
private int channels;
//----------------------------------------------
// Constructor
//----------------------------------------------
/**
* Basic default constructor to set an initial
* sampling rate.
*
* @param sampleRate
*/
public AddInst(int sampleRate) {
this.sampleRate = sampleRate;
this.channels = 1;
}
//----------------------------------------------
// Methods
//----------------------------------------------
/**
* Initialisation method used to build the objects that
* this instrument will use.
*/
public void createChain() {
Oscillator mod = new Oscillator(this, Oscillator.SINE_WAVE,
this.sampleRate, this.channels);
mod.setFrqRatio((float) 7.5);
Envelope env = new Envelope(mod,
new double[]{0.0, 0.0, 0.4, 1.0, 1.0, 0.8});
//Value offsetAmp = new Value(this, this.sampleRate,
// this.channels, (float)0.7);
Oscillator wt2 = new Oscillator(this, Oscillator.SINE_WAVE,
this.sampleRate, this.channels);
Envelope env2 = new Envelope(wt2,
new double[]{0.0, 0.0, 0.5, 1.0, 1.0, 0.0});
Add add = new Add(new AudioObject[]{env, env2});
SampleOut sout = new SampleOut(add);
}
}