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Jade (Rose) Rowland 2025-09-24 00:24:25 -07:00
parent 0633954e24
commit 28c94efaa9
3 changed files with 195 additions and 201 deletions
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38
packages/superdough/worklets.mjs
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@ -276,8 +276,8 @@ class TwoPoleFilter {
s1 = 0;
update(s, cutoff, resonance = 0) {
// Out of bound values can produce NaNs
resonance = clamp(resonance, 0, 1)
cutoff = clamp(cutoff, 0, sampleRate / 2 - 1)
resonance = clamp(resonance, 0, 1);
cutoff = clamp(cutoff, 0, sampleRate / 2 - 1);
const c = clamp(2 * Math.sin(cutoff * (_PI / sampleRate)), 0, 1.14);
const r = Math.pow(0.5, (resonance + 0.125) / 0.125);
const mrc = 1 - r * c;
@ -289,14 +289,12 @@ class TwoPoleFilter {
class DJFProcessor extends AudioWorkletProcessor {
static get parameterDescriptors() {
return [
{ name: 'value', defaultValue: 0.5 },
];
return [{ name: 'value', defaultValue: 0.5 }];
}
constructor() {
super();
this.filters = [new TwoPoleFilter(), new TwoPoleFilter()]
this.filters = [new TwoPoleFilter(), new TwoPoleFilter()];
}
process(inputs, outputs, parameters) {
@ -307,38 +305,34 @@ class DJFProcessor extends AudioWorkletProcessor {
this.started = hasInput;
const value = clamp(parameters.value[0], 0, 1);
let filterType = 'none'
let cutoff
let filterType = 'none';
let cutoff;
let v = 1;
if (value > 0.5) {
filterType = 'hipass'
v = (value - .5) * 2
filterType = 'hipass';
v = (value - 0.5) * 2;
} else if (value < 0.5) {
filterType = 'lopass'
v = value * 2
filterType = 'lopass';
v = value * 2;
}
cutoff = Math.pow((v * 11), 4)
cutoff = Math.pow(v * 11, 4);
// let cutoff = parameters.frequency[0];
for (let i = 0; i < input.length; i++) {
for (let n = 0; n < blockSize; n++) {
if (filterType == 'none') {
output[i][n] = input[i][n]
output[i][n] = input[i][n];
} else {
this.filters[i].update(input[i][n], cutoff, 0.2)
this.filters[i].update(input[i][n], cutoff, 0.2);
if (filterType === 'lopass') {
output[i][n] = this.filters[i].s1
output[i][n] = this.filters[i].s1;
} else if (filterType === 'hipass') {
output[i][n] = input[i][n] - this.filters[i].s1
output[i][n] = input[i][n] - this.filters[i].s1;
} else {
output[i][n] = input[i][n]
output[i][n] = input[i][n];
}
}
}
}
return true;