Function for distorting an audio input

distortion-curve.js

export default function distortionCurve(amount = 0) {
  const sampleRate = 44100;
  const curve = new Float32Array(sampleRate);
  const deg = Math.PI / 180;

  for (let i = 0; i < sampleRate; ++i) {
    const x = (i * 2 / sampleRate) - 1;
    curve[i] = (
      (
        (3 + amount) * x * 20 * deg
      ) / (
        (amount * Math.abs(x)) + Math.PI
      )
    );
  }

  return curve;
}