@thi.ng/dsp/impulse.js

Composable signal generators, oscillators, filters, FFT, spectrum, windowing & related DSP utils

import { AGen } from "./agen.js";
const impulse = (on = 1) => new Impulse(on, 0);
const impulseT = (on, off) => new Impulse(on, off);
const impulseB = (start = true) => new Impulse(start, !start);
class Impulse extends AGen {
  constructor(_on, _off) {
    super(_on);
    this._on = _on;
    this._off = _off;
  }
  copy() {
    return new Impulse(this._on, this._off);
  }
  reset() {
    this._val = this._on;
    return this;
  }
  next() {
    const x = this._val;
    this._val = this._off;
    return x;
  }
}
export {
  Impulse,
  impulse,
  impulseB,
  impulseT
};