- Processing
- p5.js
- Processing.py
- Processing for Android
- Processing for Pi

- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Class | Env
Name | ### play()
Examples |
    import processing.sound.*;

    TriOsc triOsc;
    Env env;

    float attackTime = 0.001;
    float sustainTime = 0.004;
    float sustainLevel = 0.3;
    float releaseTime = 0.4;

    void setup() {
      size(640, 360);
      background(255);

      // Create triangle wave
      triOsc = new TriOsc(this);

      // Create the envelope
      env  = new Env(this);

    }

    void draw() {
    }

    void mousePressed() {
      triOsc.play();
      env.play(triOsc, attackTime, sustainTime, sustainLevel, releaseTime);
    }
Description | Triggers the envelope function
Syntax |
    .play(input, attackTime, sustainTime, sustainLevel, releaseTime)
Parameters |
input | SoundObject: Input sound source
attackTime | float: Attack time value as a float.
sustainTime | float: Sustain time value as a float.
releaseTime | float: Release time value as a float.
Returns | void

Updated on January 9, 2020 00:33:16pm EST