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This commit is contained in:
Jade (Rose) Rowland 2025-07-20 23:29:01 -04:00
parent 75b6f59212
commit 9416f317d4
2 changed files with 91 additions and 28 deletions
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54
packages/superdough/superdough.mjs
View file

@ -343,41 +343,41 @@ function getDelay(orbit, delaytime, delayfeedback, t, channels) {
return delays[orbit]; return delays[orbit];
} }
export function getLfo(audioContext, begin, end, properties = {}) { // export function getLfo(audioContext, begin, end, properties = {}) {
const { shape = 0, ...props } = properties; // const { shape = 0, ...props } = properties;
const { dcoffset = -0.5, depth = 1 } = properties; // const { dcoffset = -0.5, depth = 1 } = properties;
return getWorklet(audioContext, 'lfo-processor', {
frequency: 1,
depth,
skew: 0,
phaseoffset: 0,
time: begin,
begin,
end,
shape: getModulationShapeInput(shape),
dcoffset,
min: dcoffset - depth * 0.5,
max: dcoffset + depth * 0.5,
curve: 1,
...props,
});
}
// export function getLfo(audioContext, time, end, properties = {}) {
// return getWorklet(audioContext, 'lfo-processor', { // return getWorklet(audioContext, 'lfo-processor', {
// frequency: 1, // frequency: 1,
// depth: 1, // depth,
// skew: 0, // skew: 0,
// phaseoffset: 0, // phaseoffset: 0,
// time, // time: begin,
// begin: time, // begin,
// end, // end,
// shape: 1, // shape: getModulationShapeInput(shape),
// dcoffset: -0.5, // dcoffset,
// ...properties, // min: dcoffset - depth * 0.5,
// max: dcoffset + depth * 0.5,
// curve: 1,
// ...props,
// }); // });
// } // }
export function getLfo(audioContext, time, end, properties = {}) {
return getWorklet(audioContext, 'lfo-processor', {
frequency: 1,
depth: 1,
skew: 0,
phaseoffset: 0,
time,
begin: time,
end,
shape: 1,
dcoffset: -0.5,
...properties,
});
}
export function getSyncedLfo(audioContext, time, end, cps, cycle, properties = {}) { export function getSyncedLfo(audioContext, time, end, cps, cycle, properties = {}) {
const frequency = cycle / cps; const frequency = cycle / cps;

65
packages/superdough/worklets.mjs
View file

@ -81,7 +81,70 @@ function getParamValue(block, param) {
} }
return param[0]; return param[0];
} }
const waveShapeNames = Object.keys(waveshapes); // const waveShapeNames = Object.keys(waveshapes);
// class LFOProcessor extends AudioWorkletProcessor {
// static get parameterDescriptors() {
// return [
// { name: 'time', defaultValue: 0 },
// { name: 'end', defaultValue: 0 },
// { name: 'frequency', defaultValue: 0.5 },
// { name: 'skew', defaultValue: 0.5 },
// { name: 'depth', defaultValue: 1 },
// { name: 'phaseoffset', defaultValue: 0 },
// { name: 'shape', defaultValue: 0 },
// { name: 'dcoffset', defaultValue: 0 },
// ];
// }
// constructor() {
// super();
// this.phase;
// }
// incrementPhase(dt) {
// this.phase += dt;
// if (this.phase > 1.0) {
// this.phase = this.phase - 1;
// }
// }
// process(inputs, outputs, parameters) {
// // eslint-disable-next-line no-undef
// if (currentTime >= parameters.end[0]) {
// return false;
// }
// const output = outputs[0];
// const frequency = parameters['frequency'][0];
// const time = parameters['time'][0];
// const depth = parameters['depth'][0];
// const skew = parameters['skew'][0];
// const phaseoffset = parameters['phaseoffset'][0];
// const dcoffset = parameters['dcoffset'][0];
// const shape = waveShapeNames[parameters['shape'][0]];
// const blockSize = output[0].length ?? 0;
// if (this.phase == null) {
// this.phase = _mod(time * frequency + phaseoffset, 1);
// }
// // eslint-disable-next-line no-undef
// const dt = frequency / sampleRate;
// for (let n = 0; n < blockSize; n++) {
// for (let i = 0; i < output.length; i++) {
// const modval = (waveshapes[shape](this.phase, skew) + dcoffset) * depth;
// output[i][n] = modval;
// }
// this.incrementPhase(dt);
// }
// return true;
// }
// }
// registerProcessor('lfo-processor', LFOProcessor);
// const waveShapeNames = Object.keys(waveshapes);
class LFOProcessor extends AudioWorkletProcessor { class LFOProcessor extends AudioWorkletProcessor {
static get parameterDescriptors() { static get parameterDescriptors() {
return [ return [