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added distortion effect

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This commit is contained in:
Jade (Rose) Rowland 2024-02-28 14:31:07 -05:00
parent c77b0098a7
commit 1221c6144c
3 changed files with 53 additions and 8 deletions
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28
packages/superdough/worklets.mjs
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@ -75,7 +75,8 @@ class ShapeProcessor extends AudioWorkletProcessor {
process(inputs, outputs, parameters) {
let shape = parameters.shape[0];
const postgain = Math.max(0.001, Math.min(1, parameters.postgain[0]));
shape = Math.expm1(shape * 5);
shape = shape < 1 ? shape : 1.0 - 4e-10;
shape = (2.0 * shape) / (1.0 - shape);
return processSample(inputs, outputs, (block) => {
const val = ((1 + shape) * block) / (1 + shape * Math.abs(block));
return val * postgain;
@ -84,3 +85,28 @@ class ShapeProcessor extends AudioWorkletProcessor {
}
registerProcessor('shape-processor', ShapeProcessor);
class DistortProcessor extends AudioWorkletProcessor {
static get parameterDescriptors() {
return [
{ name: 'distort', defaultValue: 0 },
{ name: 'postgain', defaultValue: 1 },
];
}
constructor() {
super();
}
process(inputs, outputs, parameters) {
let shape = parameters.distort[0];
const postgain = Math.max(0.001, Math.min(1, parameters.postgain[0]));
shape = Math.expm1(shape);
return processSample(inputs, outputs, (block) => {
const val = ((1 + shape) * block) / (1 + shape * Math.abs(block));
return val * postgain;
});
}
}
registerProcessor('distort-processor', DistortProcessor);