AD Envelope

This is a one-stage envelope generator useful to create percusive sounds.

Unlike ADSR, this envelope can finish before the gate is released.

import { AdEnv, registerAdWorklet } from "synthlet";
 
const audioContext = new AudioContext();
await registerAdWorklet(audioContext);
 
const ad = AdEnv(audioContext, {
  attack: 0.1,
  decay: 0.1,
  gain: 1,
});
const osc = new OscillatorNode(audioContext);
osc.start();
const amp = new GainNode(audioContext, { gain: 0 });
ad.connect(amp.gain);
 
ad.trigger.value = 1;

Parameters

• attack: The attack time in seconds. Default is 0.1.
• decay: The decay time in seconds. Default is 0.1.
• trigger: The envelope trigger. 1 means start. You need to move the trigger back to 1 to restart the envelope.
• offset: The offset of the envelope. Default is 0.
• gain: The gain of the envelope. Default is 1.