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import jm.audio.io.SampleOut;
import jm.audio.synth.Envelope;
import jm.audio.synth.Oscillator;
/**
* A basic ring modulation synthesis instrument
* which is pure Amplitude Modulation
*
* @author Andrew Brown
*/
public final class RingModulationInst extends jm.audio.Instrument {
//----------------------------------------------
// Attributes
//----------------------------------------------
/**
* the sample rate passed to the instrument
*/
private int sampleRate;
//----------------------------------------------
// Constructor
//----------------------------------------------
/**
* Basic default constructor to set an initial
* sampling rate.
*
* @param sampleRate
*/
public RingModulationInst(int sampleRate) {
this.sampleRate = sampleRate;
}
//----------------------------------------------
// Methods
//----------------------------------------------
/**
* Initialisation method used to build the objects that
* this instrument will use.
*/
public void createChain() {
Oscillator wt1 = new Oscillator(this, Oscillator.SINE_WAVE,
this.sampleRate, Oscillator.MONO);
wt1.setFrqRatio((float) 2.2);
Envelope env = new Envelope(wt1,
new double[]{0.0, 1.0, 1.0, 0.0});
Oscillator wt2 = new Oscillator(env,
Oscillator.SINE_WAVE, Oscillator.AMPLITUDE);
Envelope env2 = new Envelope(wt2,
new double[]{0.0, 0.0, 0.05, 1.0, 1.0, 0.0});
SampleOut sout = new SampleOut(env2);
}
}