Examples of jm.audio.synth.Envelope

jm.audio.synth.Envelope
Envelope which can be set with an arbitrary number of points the envelope is constructed with linear lines between each specifed point. The points excepted by this class are positioned as a percent of the total length of the sound data being worked on and the envelope itself is constructed in the build() method.
Envelope objects can be used as either Generator Audio Objects (ie the first in the chain) or as processor Audio Objects (ie in the centre or the chain) depending on the constructor used.
As a generator the Envelope can be used to pass each envelope position onto another Audio Object as input data.
As a processor the Envelope object is used to change the Amplitude of incoming samples to reflect the shape of the envelope.
NOTE: The important distinction here is that when being used as a processor object the envelopes only possible function is to alter amplitude. But when used as a generator the Envelope can be used to send data to any AudioObjects input. (the volume of a volume object for example for doing crescendos on each note) @author Andrew Sorensen @version 1.0, Sun Feb 25 18:42:47 2001

        // set a fixed, rather the note determined, frequency
        if (frequency != -1.0f) {
            osc.setChoice(0);
            osc.setFrq(frequency);
        }
        Envelope env = new Envelope(osc, envPoints);
        Volume vol = new Volume(env);
        StereoPan span = new StereoPan(vol);
        if (output == RENDER) sout = new SampleOut(span);
    }

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     * this instrument will use and specify thier interconnections.
     */
    public void createChain() {
        Oscillator wt = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, this.channels);
        Filter filt = new Filter(wt, this.filterCutoff, Filter.LOW_PASS);
        Envelope env = new Envelope(filt,
                new double[]{0.0, 0.0, 0.05, 1.0, 0.3, 0.4, 1.0, 0.0});
        Volume vol = new Volume(env);
//    SampleOut sout = new SampleOut(vol);
    }

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        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);
    }

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     */
    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);
    }

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


        Filter filt = new Filter(wt, this.filterCutoff, Filter.HIGH_PASS);


        Envelope env = new Envelope(filt,
                new double[]{0.0, 0.0, 0.05, 1.0, 0.2,
                        0.4, 0.8, 0.3, 1.0, 0.0}
        );


        Volume vol = new Volume(env);

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     * any AudioObjects used by this instrument
     */
    public void createChain() {
        Oscillator osc = new Oscillator(this, Oscillator.SQUARE_WAVE,
                this.sampleRate, this.channels);
        Envelope env = new Envelope(osc, new double[]{0.0, 0.0, 0.1, 1.0, 0.3, 0.0});
        Comb comb = new Comb(env, delay, decay);
        SampleOut sout = new SampleOut(comb);
    }

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     * audio object(s) in that array. (One array element per channel)
     */
    public void createChain() {
        Oscillator osc = new Oscillator(this, Oscillator.SINE_WAVE,
                this.sampleRate, this.channels);
        Envelope env = new Envelope(osc,
                new double[]{0.0, 0.0, 0.1, 1.0, 1.0, 0.0});
        SampleOut sout = new SampleOut(env);
    }

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     */
    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);
    }

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     */
    public void createChain() {
        Pluck plk = new Pluck(this, this.sampleRate, this.channels, this.feedback);
        Volume vol = new Volume(plk);
        StereoPan span = new StereoPan(vol);
        Envelope env = new Envelope(span, new double[]{0.0, 1.0, 0.9, 1.0, 1.0, 0.0});
        SampleOut sout;
        if (output == RENDER) sout = new SampleOut(env);
    }

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        StereoPan span = new StereoPan(vol);
        if (wholeFile) {
            sin.setWholeFile(wholeFile);
            if (output == RENDER) sout = new SampleOut(span);
        } else {
            Envelope env = new Envelope(span, points);
            if (output == RENDER) sout = new SampleOut(env);
        }
    }

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