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Jade (Rose) Rowland 2024-03-04 00:43:03 -05:00
parent 1666b50857
commit c2df8aa6b9
2 changed files with 49 additions and 6 deletions
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48
packages/superdough/synth.mjs
View File

@ -25,11 +25,51 @@ const waveforms = ['triangle', 'square', 'sawtooth', 'sine'];
const noises = ['pink', 'white', 'brown', 'crackle'];
export function registerSynthSounds() {
[...waveforms].forEach((s) => {
registerSound(
s,
(t, value, onended) => {
const [attack, decay, sustain, release] = getADSRValues(
[value.attack, value.decay, value.sustain, value.release],
'linear',
[0.001, 0.05, 0.6, 0.01],
);
let sound;
sound = getOscillator(s, t, value);
let { node: o, stop, triggerRelease } = sound;
// turn down
const g = gainNode(0.3);
const { duration } = value;
o.onended = () => {
o.disconnect();
g.disconnect();
onended();
};
const envGain = gainNode(1);
let node = o.connect(g).connect(envGain);
const holdEnd = t + duration;
getParamADSR(node.gain, attack, decay, sustain, release, 0, 1, t, holdEnd, 'linear');
const envEnd = holdEnd + release + 0.01;
triggerRelease?.(envEnd);
stop(envEnd);
return {
node,
stop: (releaseTime) => {},
};
},
{ type: 'synth', prebake: true },
);
});
registerSound(
'supersaw',
(begin, value, onended) => {
const ac = getAudioContext();
let { note, freq, duration } = value;
let { note, freq, duration, n = 2 } = value;
note = note || 36;
if (typeof note === 'string') {
note = noteToMidi(note); // e.g. c3 => 48
@ -58,7 +98,9 @@ export function registerSynthSounds() {
frequency: freq,
begin,
end,
detune: 0,
detune: Math.min(200, Math.max(0, n * 0.1)),
// voices: n,
// spread: 0,
},
{
outputChannelCount: [2],
@ -68,7 +110,7 @@ export function registerSynthSounds() {
const envGain = gainNode(1);
node = node.connect(envGain);
getParamADSR(node.gain, attack, decay, sustain, release, 0, 0.1, begin, holdend, 'linear');
getParamADSR(node.gain, attack, decay, sustain, release, 0, 0.3, begin, holdend, 'linear');
return {
node,

7
packages/superdough/worklets.mjs
View File

@ -170,7 +170,7 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
{
name: 'spread',
defaultValue: 0.6,
defaultValue: 0.4,
min: 0,
max: 1,
},
@ -202,6 +202,7 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
const detune = params.detune[0];
let spread = params.spread[0];
spread = spread * 0.5 + 0.5;
const gainAdjustment = Math.max(0.75, 1 - (voices - 1) * 0.05);
for (let n = 0; n < voices; n++) {
let adj = 0;
@ -217,8 +218,8 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
this.phase[n] = this.phase[n] ?? Math.random();
const v = saw(this.phase[n], dt);
output[0][i] = output[0][i] + v * (1 - balance);
output[1][i] = output[1][i] + v * balance;
output[0][i] = (output[0][i] + v * (1 - balance)) * gainAdjustment;
output[1][i] = (output[1][i] + v * balance) * gainAdjustment;
this.phase[n] += dt;