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This commit is contained in:
Jade (Rose) Rowland 2025-05-27 17:35:35 +02:00
parent 366637026b
commit 63f4f202f1
3 changed files with 17 additions and 23 deletions
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28
packages/superdough/worklets.mjs
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@ -767,11 +767,12 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
super();
this.codeText = '0';
this.port.onmessage = (event) => {
this.codeText = event.data.trim().replace(
/^eval\(unescape\(escape(?:`|\('|\("|\(`)(.*?)(?:`|'\)|"\)|`\)).replace\(\/u\(\.\.\)\/g,["'`]\$1%["'`]\)\)\)$/,
(match, m1) => unescape(escape(m1).replace(/u(..)/g, '$1%')));
this.codeText = event.data
.trim()
.replace(
/^eval\(unescape\(escape(?:`|\('|\("|\(`)(.*?)(?:`|'\)|"\)|`\)).replace\(\/u\(\.\.\)\/g,["'`]\$1%["'`]\)\)\)$/,
(match, m1) => unescape(escape(m1).replace(/u(..)/g, '$1%')),
);
};
this.virtualRate = 112600; // target sample rate
// this.nativeRate = sampleRate; // actual context rate, e.g., 48000
@ -820,33 +821,30 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
return false;
}
if (this.t == null) {
this.t = params.begin[0] * this.virtualRate
this.t = params.begin[0] * this.virtualRate;
}
let codeText = this.codeText;
this.func = Function('t', 'return ' + codeText);
const output = outputs[0];
const tIncrement = this.virtualRate / sampleRate
const tIncrement = this.virtualRate / sampleRate;
for (let i = 0; i < output[0].length; i++) {
let t = Math.floor(this.t)
let t = Math.floor(this.t);
const detune = getParamValue(i, params.detune);
const freq = applySemitoneDetuneToFrequency(getParamValue(i, params.frequency), detune / 100);
t = t / (this.virtualRate / 256) * freq
t = (t / (this.virtualRate / 256)) * freq;
const funcValue = this.func(t)
let signal = (funcValue & 255) / 127.5 - 1
const funcValue = this.func(t);
let signal = (funcValue & 255) / 127.5 - 1;
const out = signal;
for (let c = 0; c < output.length; c++) {
output[c][i] = out;
}
this.t = this.t + tIncrement
this.t = this.t + tIncrement;
}
return true; // keep the audio processing going
}
}