​

//oscillator >> ADSR >> filter >> master

​

let osc;

let ampEnv;

let aFilter;

​

//Try a lowpass filter and lower frequencies for a bass sound

aFilter = new Tone.Filter(150, "lowpass");

aFilter.toDestination();

​

//Plucked String

ampEnv = new Tone.AmplitudeEnvelope({

  "attack": 0,

  "decay": 0.3,

  "sustain": 1,

  "release": 1

});

ampEnv.releaseCurve = "linear";

ampEnv.connect(aFilter);

​

// osc = new Tone.Oscillator(100, "sine");

osc = new Tone.Oscillator(100, "square");

// osc = new Tone.Oscillator(100, "sawtooth");

// osc = new Tone.Oscillator(100, "triangle");

osc.connect(ampEnv);

osc.start();

​

function setup() {

}

​

function keyPressed() {

  ampEnv.triggerAttack();

}

​

function keyReleased() {

  ampEnv.triggerRelease();

}

​