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Add control over phase randomization and fix a bug with supersaw

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This commit is contained in:
Aria 2025-09-25 00:05:50 -07:00
parent ef87f65bef
commit e3741ae8fa
4 changed files with 22 additions and 10 deletions
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8
packages/superdough/worklets.mjs
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@ -474,10 +474,10 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
gainR = gain1;
}
// Individual voice detuning
freq = applySemitoneDetuneToFrequency(freq, getUnisonDetune(voices, freqspread, n));
const voiceFreq = applySemitoneDetuneToFrequency(freq, getUnisonDetune(voices, freqspread, n));
// We must wrap this here because it is passed into sawblep below which
// has domain [0, 1]
const dt = mod(freq / sampleRate, 1);
const dt = mod(voiceFreq / sampleRate, 1);
this.phase[n] = this.phase[n] ?? Math.random();
const v = waveshapes.sawblep(this.phase[n], dt);
@ -988,6 +988,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
{ name: 'warpMode', defaultValue: 0 },
{ name: 'voices', defaultValue: 1, minValue: 1, maxValue: 32 },
{ name: 'spread', defaultValue: 0, minValue: 0, maxValue: 1 },
{ name: 'phaserand', defaultValue: 1, minValue: 0, maxValue: 1 },
];
}
@ -1188,6 +1189,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
const warpAmount = pv(parameters.warp, i);
const warpMode = pv(parameters.warpMode, i);
const voices = pv(parameters.voices, i);
const phaseRand = pv(parameters.phaserand, i);
const gain1 = Math.sqrt(1 - spread);
const gain2 = Math.sqrt(spread);
let f = pv(parameters.frequency, i);
@ -1207,7 +1209,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
const bank = this.tables[level];
// warp phase then sample
this.phase[n] = this.phase[n] ?? Math.random();
this.phase[n] = this.phase[n] ?? Math.random() * phaseRand;
let ph = this._warpPhase(this.phase[n], warpAmount, warpMode);
const s0 = this._sampleFrame(bank[fIdx], ph);
const s1 = this._sampleFrame(bank[Math.min(this.numFrames - 1, fIdx + 1)], ph);