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Some final tweaks

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Aria 2025-11-16 13:12:47 -06:00
parent 22807b3833
commit 3962558c09
1 changed files with 15 additions and 15 deletions
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30
packages/superdough/worklets.mjs
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@ -825,13 +825,12 @@ const chyx = {
/*bit reverse*/ br: function (x, size = 8) { /*bit reverse*/ br: function (x, size = 8) {
if (size > 32) { if (size > 32) {
throw new Error('br() Size cannot be greater than 32'); throw new Error('br() Size cannot be greater than 32');
} else {
let result = 0;
for (let idx = 0; idx < size - 0; idx++) {
result += chyx.bitC(x, 2 ** idx, 2 ** (size - (idx + 1)));
}
return result;
} }
let result = 0;
for (let idx = 0; idx < size; idx++) {
result |= chyx.bitC(x, 1 << idx, 1 << (size - (idx + 1)));
}
return result;
}, },
/*sin that loops every 128 "steps", instead of every pi steps*/ sinf: function (x) { /*sin that loops every 128 "steps", instead of every pi steps*/ sinf: function (x) {
return Math.sin((x * PI) / 128); return Math.sin((x * PI) / 128);
@ -842,7 +841,7 @@ const chyx = {
/*tan that loops every 128 "steps", instead of every pi steps*/ tanf: function (x) { /*tan that loops every 128 "steps", instead of every pi steps*/ tanf: function (x) {
return Math.tan((x * PI) / 128); return Math.tan((x * PI) / 128);
}, },
/*converts t into a string composed of it's bits, regex's that*/ regG: function (t, X) { /*converts t into a string composed of its bits; regexes that*/ regG: function (t, X) {
return X.test(t.toString(2)); return X.test(t.toString(2));
}, },
}; };
@ -850,7 +849,7 @@ const chyx = {
// Create shortened Math functions // Create shortened Math functions
let mathParams, byteBeatHelperFuncs; let mathParams, byteBeatHelperFuncs;
function getByteBeatFunc(codetext) { function getByteBeatFunc(codetext) {
if ((mathParams || byteBeatHelperFuncs) == null) { if (mathParams == null) {
mathParams = Object.getOwnPropertyNames(Math); mathParams = Object.getOwnPropertyNames(Math);
byteBeatHelperFuncs = mathParams.map((k) => Math[k]); byteBeatHelperFuncs = mathParams.map((k) => Math[k]);
const chyxNames = Object.getOwnPropertyNames(chyx); const chyxNames = Object.getOwnPropertyNames(chyx);
@ -883,7 +882,7 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
this.func = getByteBeatFunc(codeText); this.func = getByteBeatFunc(codeText);
}; };
this.initialOffset = null; this.initialOffset = 0;
this.t = null; this.t = null;
this.func = null; this.func = null;
} }
@ -930,18 +929,19 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
this.t = params.begin[0] * sampleRate; this.t = params.begin[0] * sampleRate;
} }
const output = outputs[0]; const output = outputs[0];
const scale = 256 * INVSR;
for (let i = 0; i < output[0].length; i++) { for (let i = 0; i < output[0].length; i++) {
const detune = pv(params.detune, i); const detune = pv(params.detune, i);
const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100); const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
let local_t = 256 * this.t * INVSR * freq + this.initialOffset; const local_t = scale * freq * this.t + this.initialOffset;
const funcValue = this.func(local_t); const funcValue = this.func(local_t);
let signal = (funcValue & 255) / 127.5 - 1; const signal = (funcValue & 255) / 127.5 - 1;
const out = signal * 0.2; //prevent speaker blowout via clipping if threshold exceeds
const out = clamp(signal * 0.2, -0.4, 0.4);
for (let c = 0; c < output.length; c++) { for (let c = 0; c < output.length; c++) {
//prevent speaker blowout via clipping if threshold exceeds output[c][i] = out;
output[c][i] = clamp(out, -0.4, 0.4);
} }
this.t = this.t + 1; this.t++;
} }
return true; // keep the audio processing going return true; // keep the audio processing going