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Merge pull request 'Feature: Distortion Modes' (#1561) from glossing/strudel:glossing/distortion-modes into main

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Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1561
This commit is contained in:
Switch Angel AKA Jade Rose 2025-10-13 07:26:50 +02:00
commit ded91fab7d
14 changed files with 325 additions and 40 deletions
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15
packages/superdough/worklets.mjs
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@ -4,6 +4,7 @@
import OLAProcessor from './ola-processor';
import FFT from './fft.js';
import { getDistortionAlgorithm } from './helpers.mjs';
const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
const mod = (n, m) => ((n % m) + m) % m;
@ -430,9 +431,10 @@ class DistortProcessor extends AudioWorkletProcessor {
];
}
constructor() {
constructor({ processorOptions }) {
super();
this.started = false;
this.algorithm = getDistortionAlgorithm(processorOptions.algorithm);
}
process(inputs, outputs, parameters) {
@ -444,13 +446,12 @@ class DistortProcessor extends AudioWorkletProcessor {
return false;
}
this.started = hasInput;
const shape = Math.expm1(parameters.distort[0]);
const postgain = Math.max(0.001, Math.min(1, parameters.postgain[0]));
for (let n = 0; n < blockSize; n++) {
for (let i = 0; i < input.length; i++) {
output[i][n] = (((1 + shape) * input[i][n]) / (1 + shape * Math.abs(input[i][n]))) * postgain;
const postgain = clamp(pv(parameters.postgain, n), 0.001, 1);
const shape = Math.expm1(pv(parameters.distort, n));
for (let ch = 0; ch < input.length; ch++) {
const x = input[ch][n];
output[ch][n] = postgain * this.algorithm(x, shape);
}
}
return true;