ADSR

ADSR stands for attack, decay, sustain, and release.

Glicol provides a node adsr for that and we need to use the concept covered so far.

First, create a const sig 0 to control the node.

glicol.play({
  o: saw(100).mul("~amp"),
  "~amp": sig(0).adsr(1, 2, 0.3, 3),
});

The we can sendMsg to the sig node:

document.getElementById("gateoff").onclick = () => {
  glicol.sendMsg(`~amp, 0, 0, 1`);
};

This will trigger the attack and decay, and the value stays at the the sustain value 0.3.

Then we send the gate off information, which will trigger the release phase:

document.getElementById("gateoff").onclick = () => {
  glicol.sendMsg(`~amp, 0, 0, 0`);
};

ADSR ​