import jm.audio.io.SampleOut;
import jm.audio.synth.Envelope;
import jm.audio.synth.Oscillator;
import jm.audio.synth.Volume;
/**
* A basic amplitude modulation that causes a warbing trumolo effect
*
* @author Andrew Brown
*/
public final class TremoloInst 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 TremoloInst(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 modulator = new Oscillator(this, Oscillator.SINE_WAVE, this.sampleRate,
this.channels, Oscillator.FREQUENCY, (float) 5.0);
Volume vol = new Volume(modulator, 10.0f);
Oscillator carrier = new Oscillator(vol,
Oscillator.SINE_WAVE, Oscillator.AMPLITUDE);
Envelope env2 = new Envelope(carrier,
new double[]{0.0, 0.0, 0.1, 1.0, 1.0, 0.0});
SampleOut sout = new SampleOut(env2);
}
}