Package

Source Code of BreathyFluteInst

import jm.audio.AudioObject;
import jm.audio.io.SampleOut;
import jm.audio.synth.*;


/**
* A basic layered synthesis instrument
*
* @author Andrew Brown after Andrew Sorensen
*/


public final class BreathyFluteInst extends jm.audio.Instrument {

    //----------------------------------------------

    // Attributes

    //----------------------------------------------

    /**
     * The points to use in the construction of Envelopes
     */

    private EnvPoint[] pointArray = new EnvPoint[10];

    /**
     * The points to use in the construction of Envelopes
     */

    private EnvPoint[] pointArray2 = new EnvPoint[10];

    /**
     * The number of channels
     */

    private int channels;

    /**
     * the sample rate passed to the instrument
     */

    private int sampleRate;


    //----------------------------------------------

    // Constructor

    //----------------------------------------------

    /**
     * Basic default constructor to set an initial
     * <p/>
     * sampling rate.
     *
     * @param sampleRate
     */

    public BreathyFluteInst(int sampleRate) {

        this(sampleRate, 1);

    }

    /**
     * A constructor to set an initial
     * <p/>
     * sampling rate and number of channels.
     *
     * @param sampleRate
     */

    public BreathyFluteInst(int sampleRate, int channels) {

        this.sampleRate = sampleRate;

        this.channels = channels;

        // tone env

        EnvPoint[] tempArray = {

                new EnvPoint((float) 0.0, (float) 0.0),

                new EnvPoint((float) 0.2, (float) 1.0),

                new EnvPoint((float) 0.5, (float) 0.7),

                new EnvPoint((float) 0.8, (float) 0.5),

                new EnvPoint((float) 1.0, (float) 0.0)

        };

        pointArray = tempArray;

        // Noise env

        EnvPoint[] tempArray2 = {

                new EnvPoint((float) 0.0, (float) 0.0),

                new EnvPoint((float) 0.05, (float) 0.7),

                new EnvPoint((float) 0.2, (float) 0.1),

                new EnvPoint((float) 1.0, (float) 0.0)

        };

        pointArray2 = tempArray2;

    }


    //----------------------------------------------

    // Methods

    //----------------------------------------------


    /**
     * Initialisation method used to build the objects that
     * <p/>
     * this instrument will use
     */

    public void createChain() {

        // main tone

        Oscillator wt = new Oscillator(this, Oscillator.SINE_WAVE, this.sampleRate, channels);

        Volume vol = new Volume(wt, (float) 1.0);

        // overtone

        Oscillator wt2 = new Oscillator(this, Oscillator.SINE_WAVE, this.sampleRate, channels);

        wt2.setFrqRatio((float) 2.001);

        Volume vol2 = new Volume(wt2, (float) 0.5);

        // overtone

        Oscillator wt3 = new Oscillator(this, Oscillator.SINE_WAVE, this.sampleRate, channels);

        wt3.setFrqRatio((float) 4.0);

        Volume vol3 = new Volume(wt3, (float) 0.1);

        // breath

        Noise noise = new Noise(this, Noise.WHITE_NOISE, this.sampleRate);

        Volume vol4 = new Volume(noise, (float) 0.2);

        // all together now

        AudioObject[] parts = {vol, vol2, vol3, vol4};

        Add add = new Add(parts);

        Envelope env = new Envelope(add, pointArray);

        StereoPan span = new StereoPan(env);

        SampleOut sout = new SampleOut(span);

    }

}
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