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68 Commits

Author SHA1 Message Date
Aria 2ce09cfd32 Move fns to util file; optimized clamp 2025-11-23 15:25:08 -06:00
Aria 96d92b4728 Make warpmode k rate 2025-11-22 22:46:22 -06:00
Aria 8b66002dd0 Attempt to block animation when pattern highlighting disabled 2025-11-22 22:32:17 -06:00
Aria 34620ffed2 Working version -- remove mips, switch back to simple voice release 2025-11-22 22:32:17 -06:00
Aria 835659213e Resets and folding things into processorOptions 2025-11-22 22:32:17 -06:00
Aria 584f158c29 Fast detune, resets 2025-11-22 22:32:17 -06:00
Aria 56c6a1fd56 Chebyshev cleanup 2025-11-22 22:32:17 -06:00
Aria af2ad9505d More optimizations 2025-11-22 22:32:17 -06:00
Aria 352344aa91 Single silencer node; postgain on the worklets 2025-11-22 22:32:17 -06:00
Aria ffb618dc97 Use nodes prior to GC 2025-11-22 22:32:17 -06:00
Switch Angel AKA Jade Rose 2518b2aed2 Merge pull request 'FIX: prevent LFO filter modulation from popping from negative values' (#1767) from lpmod_improvements into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1767
2025-11-23 00:52:27 +01:00
Jade (Rose) Rowland 1d5f3a4f30 prevent filter modulation pops 2025-11-22 18:21:24 -05:00
Switch Angel AKA Jade Rose 5fa6cb4653 Merge pull request 'prefix "S" for solo' (#1481) from solo into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1481
2025-11-23 00:03:31 +01:00
Jade (Rose) Rowland 19fd0fc649 rm unessecary file 2025-11-22 17:17:41 -05:00
Jade (Rose) Rowland e72e26eb81 add comment 2025-11-22 17:11:17 -05:00
Jade (Rose) Rowland 1c4b05d55f solo search n = 1 2025-11-22 16:40:31 -05:00
Aria 06bf17f444 Merge pull request 'Bug Fix: Use frac due to negative frequencies from FM' (#1759) from glossing/droponelettertosaveears into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1759
2025-11-21 01:56:10 +01:00
Aria 21543956c6 Also for wavetable 2025-11-20 18:30:53 -06:00
Aria 4758effdc6 Use frac due to negative frequencies from FM 2025-11-20 18:22:44 -06:00
froos 6f58e74bea Merge pull request '[perf] fix connect-leak added by #1742 when noise() is not used' (#1757) from jeromew/strudel:fix-perf5 into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1757
2025-11-20 19:48:15 +01:00
jeromew 0435711051 [perf] fix connect-leak added by #1742 when noise() is not used 2025-11-20 17:36:00 +00:00
froos 8f6718b9e8 Merge pull request '[perf] fix connect-leak in delay effect' (#1755) from jeromew/strudel:fix-perf4 into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1755
2025-11-20 14:50:59 +01:00
froos aa77255d98 Merge pull request '[perf] fix connect leak when .noise() is in the mix' (#1742) from jeromew/strudel:fix-perf3 into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1742
2025-11-20 14:49:40 +01:00
jeromew 7267990e20 Fix codeformat 2025-11-20 13:35:37 +00:00
jeromew 387e5db0fe Merge branch 'fix-perf3' of https://codeberg.org/jeromew/strudel into fix-perf3 2025-11-20 13:24:03 +00:00
jeromew d9f63b8dfa [perf] fix connect leak when .noise() is in the mix 2025-11-20 13:21:09 +00:00
jeromew 8ed72b4573 [perf] fix connect-leak in delay effect 2025-11-20 13:05:41 +00:00
Felix Roos dd2c808cd7 hotfix: reduce sounds-tab click to play latency 2025-11-19 21:55:35 +01:00
Alex McLean 389a63a850 Merge pull request 'wchooseCycles has now notes in an example' (#1748) from scrappy_fiddler/strudel:documentation into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1748
2025-11-18 23:52:43 +01:00
scrappy_fiddler 99beb4454d update snapshot with note example 2025-11-17 20:49:26 +01:00
scrappy_fiddler 30cc46ea66 wchooseCycles has now notes in an example 2025-11-17 20:04:40 +01:00
Aria ea7dc7a732 Merge pull request 'Feature: Partials' (#1659) from glossing/strudel:glossing/partials into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1659
2025-11-17 05:31:53 +01:00
Aria 641bd2f356 Properly patternify everything 2025-11-16 22:20:17 -06:00
Aria f5ed6dbe79 Top level functions 2025-11-16 20:28:22 -06:00
Aria 7a3bea6f90 Working version 2025-11-16 19:38:59 -06:00
Aria cc10122b71 Testing out approach to allow list patterns in partials 2025-11-16 19:20:42 -06:00
Aria b66c0d18b3 Merge branch 'main' into glossing/partials 2025-11-16 18:44:04 -06:00
froos 0331c91b80 Merge pull request 'README: update superdough documentation' (#1741) from TristanMlct/strudel:update-readme-superdough into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1741
2025-11-16 22:06:12 +01:00
Aria 4d5ebfc204 Merge pull request 'Feature: Envelope worklet' (#1524) from glossing/strudel:glossing/snappy-envs into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1524
2025-11-16 22:00:42 +01:00
Aria 921cb17d33 Merge branch 'main' into glossing/snappy-envs 2025-11-16 14:39:40 -06:00
Aria 832fd04a3d Merge pull request 'Worklet optimizations' (#1730) from glossing/optimizations into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1730
Reviewed-by: Switch Angel AKA Jade Rose <daslyfe@noreply.codeberg.org>
2025-11-16 21:08:53 +01:00
Aria d9c21489f8 Merge branch 'main' into glossing/optimizations 2025-11-16 20:13:31 +01:00
Aria 3962558c09 Some final tweaks 2025-11-16 13:12:47 -06:00
jeromew bfa8fa3c75 [perf] fix connect leak when .noise() is in the mix 2025-11-16 09:23:11 +00:00
Tristan Mlct 91799f2014 README: update superdough documentation 2025-11-15 15:06:44 +01:00
froos f6bb3869de Merge pull request '[perf] disconnect Offline AudioNode connections in generateReverb' (#1740) from jeromew/strudel:fix-perf2 into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1740
2025-11-15 14:59:28 +01:00
froos b9e9c9e9e6 Merge pull request '[perf] disconnect send effect AudioNode when room is used' (#1736) from jeromew/strudel:fix-perf1 into main
Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1736
2025-11-15 14:57:46 +01:00
jeromew 92d87093e0 [perf] disconnect Offline AudioNode connections in generateReverb 2025-11-15 13:39:24 +00:00
jeromew 3e05525dc2 [perf] disconnect send effect AudioNode when room is used 2025-11-14 22:06:39 +00:00
Aria 22807b3833 Use weak references for sound sources 2025-11-14 16:05:09 -06:00
Aria 2875814a36 Square instead of self-multiply; more voices; more cleanup 2025-11-12 13:56:14 -06:00
Aria 157b05536a Final cleanup 2025-11-12 13:36:01 -06:00
Aria f8c9425569 Simplify spread 2025-11-12 13:13:37 -06:00
Aria be3a88b09c Optimize phase wrap; make voices k-rate 2025-11-12 12:23:40 -06:00
Aria aabf122161 Further optimizations, including detuner 2025-11-12 11:53:38 -06:00
Aria 3c6de3be6d First pass of worklets optimizations 2025-11-12 10:48:20 -06:00
Aria fd03d1fdfb Update conditional to allow to control user waveforms 2025-10-15 15:14:31 -05:00
Aria 35016b5847 Mention range in docstring 2025-10-15 14:56:20 -05:00
Aria 0fe7edc157 Some examples 2025-10-15 14:53:07 -05:00
Aria d6de160224 Merge branch 'main' into glossing/partials 2025-10-15 13:19:57 -05:00
Aria cc4452ce58 Working version of partials and phases 2025-10-04 20:33:25 -05:00
Switch Angel AKA Jade Rose f4cf77f5c6 Merge branch 'main' into solo 2025-09-30 08:09:37 +02:00
Aria e4070b86f8 More descriptive variables and comments 2025-08-29 14:33:14 -05:00
Aria 9eeb6da3e6 Codeformat 2025-08-28 14:54:09 -05:00
Aria 869141b0a3 Parity with old adsr 2025-08-28 00:31:37 -05:00
Aria ea017e7622 Working version 2025-08-27 20:11:00 -05:00
Aria 763f900c69 First pass at envelopes with curves 2025-08-27 19:19:54 -05:00
Felix Roos 7f103e77e3 prefix "S" for solo 2025-07-28 04:05:21 +02:00
22 changed files with 1121 additions and 461 deletions
+19 -2
View File
@@ -162,6 +162,7 @@ export class StrudelMirror {
this.onDraw = onDraw || this.draw;
this.id = id || s4();
this.solo = solo;
this.hasPainters = false;
this.drawer = new Drawer((haps, time, _, painters) => {
const currentFrame = haps.filter((hap) => hap.isActive(time));
@@ -177,7 +178,7 @@ export class StrudelMirror {
onToggle: (started) => {
replOptions?.onToggle?.(started);
if (started) {
this.drawer.start(this.repl.scheduler);
this.shouldAnimate() && this.drawer.start(this.repl.scheduler);
if (this.solo) {
// stop other repls when this one is started
document.dispatchEvent(
@@ -207,9 +208,10 @@ export class StrudelMirror {
updateWidgets(this.editor, widgets);
updateMiniLocations(this.editor, this.miniLocations);
replOptions?.afterEval?.(options);
this.hasPainters = options.pattern.getPainters().length > 0;
// if no painters are set (.onPaint was not called), then we only need
// the present moment (for highlighting)
const drawTime = options.pattern.getPainters().length ? this.drawTime : [0, 0];
const drawTime = this.hasPainters ? this.drawTime : [0, 0];
this.drawer.setDrawTime(drawTime);
// invalidate drawer after we've set the appropriate drawTime
this.drawer.invalidate(this.repl.scheduler);
@@ -237,6 +239,7 @@ export class StrudelMirror {
cmEditor.style.backgroundColor = 'transparent';
}
const settings = codemirrorSettings.get();
this.isPatternHighlightingEnabled = parseBooleans(settings.isPatternHighlightingEnabled);
this.setFontSize(settings.fontSize);
this.setFontFamily(settings.fontFamily);
@@ -321,8 +324,17 @@ export class StrudelMirror {
flash(this.editor, ms);
}
highlight(haps, time) {
if (!this.isPatternHighlightingEnabled) {
return;
}
highlightMiniLocations(this.editor, time, haps);
}
shouldAnimate() {
return (
this.repl.scheduler.started &&
(this.isPatternHighlightingEnabled || this.hasPainters || this.onDraw !== this.draw)
);
}
setFontSize(size) {
this.root.style.fontSize = size + 'px';
}
@@ -343,6 +355,11 @@ export class StrudelMirror {
this.editor.dispatch({
effects: compartments[key].reconfigure(newValue),
});
if (key === 'isPatternHighlightingEnabled') {
this.isPatternHighlightingEnabled = value;
this.drawer.stop();
this.shouldAnimate() && this.drawer.start(this.repl.scheduler);
}
if (key === 'theme') {
activateTheme(value);
}
-1
View File
@@ -2264,7 +2264,6 @@ export const { tsdelay } = registerControl('tsdelay');
export const { real } = registerControl('real');
export const { imag } = registerControl('imag');
export const { enhance } = registerControl('enhance');
export const { partials } = registerControl('partials');
export const { comb } = registerControl('comb');
export const { smear } = registerControl('smear');
export const { scram } = registerControl('scram');
+3
View File
@@ -91,6 +91,9 @@ Fraction.prototype.or = function (other) {
};
const fraction = (n) => {
if (n instanceof Fraction) {
return n;
}
if (typeof n === 'number') {
/*
https://github.com/infusion/Fraction.js/#doubles
+63
View File
@@ -3624,3 +3624,66 @@ for (const name of distAlgoNames) {
return this.distort(argsPat);
};
}
/**
* Turns a list of patterns into a single pattern which outputs list-values
*
* @name parray
* @returns Pattern
*/
export const parray = (pats) => {
const pack = (...xs) => xs;
let acc = pure(curry(pack, null, pats.length));
for (const p of pats) acc = acc.appBoth(reify(p));
return acc;
};
const _ensureListPattern = (list) => {
if (Array.isArray(list)) {
return parray(list);
}
return reify(list);
};
/**
* Scale the magnitude of the harmonics of one of the core synths ('sine', 'tri', 'saw', ..)
*
* Can also be used to create a new synth via `s('user').partials(...)`
*
* @name partials
* @param {number[] | Pattern} magnitudes List of [0, 1] magnitudes for partials. 0th entry is the fundamental harmonic (i.e. DC offset is skipped)
* @example
* s("user").seg(16).n(irand(8)).scale("A:major")
* .partials([1, 0, 1, 0, 0, 1])
* @example
* s("saw").seg(8).n(irand(12)).scale("G#:minor")
* .partials(binaryL(irand(256).add("1")))
*/
Pattern.prototype.partials = function (list) {
return this.withValue((v) => (l) => ({ ...v, partials: l })).appLeft(_ensureListPattern(list));
};
// Also create a top-level function
export const partials = (list) => {
return _ensureListPattern(list).as('partials');
};
/**
* Rotates the harmonics of one of the core synths ('sine', 'tri', 'saw', 'user', ..) by a list of phases
*
* @name phases
* @param {number[] | Pattern} phases List of [0, 1) phases for partials. 0th entry is the fundamental phase (i.e. DC offset is skipped)
* @example
* // Phase cancellation
* s("saw").seg(8).n(irand(12)).scale("G#1:minor")
* .partials(partials([1, 1, 1]))
* .superimpose(x => x.phases([0.5, 0.5, 0.5]))
*/
Pattern.prototype.phases = function (list) {
return this.withValue((v) => (l) => ({ ...v, phases: l })).appLeft(_ensureListPattern(list));
};
// Also create a top-level function
export const phases = (list) => {
return _ensureListPattern(list).as('phases');
};
+14 -3
View File
@@ -152,9 +152,9 @@ export function repl({
// allows muting a pattern x with x_ or _x
return silence;
}
if (id === '$') {
if (id.includes('$')) {
// allows adding anonymous patterns with $:
id = `$${anonymousIndex}`;
id = `${id}${anonymousIndex}`;
anonymousIndex++;
}
pPatterns[id] = this;
@@ -215,8 +215,19 @@ export function repl({
let { pattern, meta } = await _evaluate(code, transpiler, transpilerOptions);
if (Object.keys(pPatterns).length) {
let patterns = [];
let soloActive = false;
for (const [key, value] of Object.entries(pPatterns)) {
patterns.push(value.withState((state) => state.setControls({ id: key })));
// handle soloed patterns ex: S$: s("bd!4")
const isSolod = key.length > 1 && key.startsWith('S');
if (isSolod && soloActive === false) {
// first time we see a soloed pattern, clear existing patterns
patterns = [];
soloActive = true;
}
if (!soloActive || (soloActive && isSolod)) {
const valWithState = value.withState((state) => state.setControls({ id: key }));
patterns.push(valWithState);
}
}
if (eachTransform) {
// Explicit lambda so only element (not index and array) are passed
+48 -3
View File
@@ -228,7 +228,7 @@ const timeToRands = (t, n) => timeToRandsPrime(timeToIntSeed(t), n);
export const run = (n) => saw.range(0, n).round().segment(n);
/**
* Creates a pattern from a binary number.
* Creates a binary pattern from a number.
*
* @name binary
* @param {number} n - input number to convert to binary
@@ -242,7 +242,7 @@ export const binary = (n) => {
};
/**
* Creates a pattern from a binary number, padded to n bits long.
* Creates a binary pattern from a number, padded to n bits long.
*
* @name binaryN
* @param {number} n - input number to convert to binary
@@ -258,6 +258,51 @@ export const binaryN = (n, nBits = 16) => {
return reify(n).segment(nBits).brshift(bitPos).band(pure(1));
};
/**
* Creates a binary list pattern from a number.
*
* @name binaryL
* @param {number} n - input number to convert to binary
* s("saw").seg(8)
* .partials(binaryL(irand(4096).add(1)))
*/
export const binaryL = (n) => {
const nBits = reify(n).log2(0).floor().add(1);
return binaryNL(n, nBits);
};
/**
* Creates a binary list pattern from a number, padded to n bits long.
*
* @name binaryNL
* @param {number} n - input number to convert to binary
* @param {number} nBits - pattern length, defaults to 16
*/
export const binaryNL = (n, nBits = 16) => {
return reify(n)
.withValue((v) => (bits) => {
const bList = [];
for (let i = bits - 1; i >= 0; i--) {
bList.push((v >> i) & 1);
}
return bList;
})
.appLeft(reify(nBits));
};
/**
* Creates a list of random numbers of the given length
*
* @name randL
* @param {number} n Number of random numbers to sample
* @example
* s("saw").seg(16).n(irand(12)).scale("F1:minor")
* .partials(randL(8))
*/
export const randL = (n) => {
return signal((t) => (nVal) => timeToRands(t, nVal).map(Math.abs)).appLeft(reify(n));
};
export const randrun = (n) => {
return signal((t) => {
// Without adding 0.5, the first cycle is always 0,1,2,3,...
@@ -479,7 +524,7 @@ export const wchoose = (...pairs) => wchooseWith(rand, ...pairs);
* @example
* wchooseCycles(["bd",10], ["hh",1], ["sd",1]).s().fast(8)
* @example
* wchooseCycles(["bd bd bd",5], ["hh hh hh",3], ["sd sd sd",1]).fast(4).s()
* wchooseCycles(["c c c",5], ["a a a",3], ["f f f",1]).fast(4).note()
* @example
* // The probability can itself be a pattern
* wchooseCycles(["bd(3,8)","<5 0>"], ["hh hh hh",3]).fast(4).s()
+6 -1
View File
@@ -253,7 +253,12 @@ export const pairs = function (xs) {
return result;
};
export const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
// Optimized clamp (~1.7x faster than Math.max/min approach)
export const clamp = (num, min, max) => {
if (num < min) return min;
if (num > max) return max;
return num;
};
/* solmization, not used yet */
const solfeggio = ['Do', 'Reb', 'Re', 'Mib', 'Mi', 'Fa', 'Solb', 'Sol', 'Lab', 'La', 'Sib', 'Si']; /*solffegio notes*/
+1 -1
View File
@@ -89,7 +89,7 @@ superdough({ s: 'bd', delay: 0.5 }, 0, 1);
- `decay`: seconds of decay phase
- `sustain`: gain of sustain phase
- `release`: seconds of release phase
- `deadline`: seconds until the sound should play (0 = immediate)
- `deadline`: seconds from audio context initialization before playing the sound (getAudioContextCurrentTime() = immediate)
- `duration`: seconds the sound should last. optional for one shot samples, required for synth sounds
### registerSynthSounds()
+77 -18
View File
@@ -36,6 +36,27 @@ export function getWorklet(ac, processor, params, config) {
return node;
}
// Pool of inactive (weakly referenced) voices to be reused if possible
const voicePools = {};
// Cycles through the pool attempting to find an inactive voice that hasn't been GC'd
export const claimVoice = (key) => {
voicePools[key] ??= [];
const pool = voicePools[key];
let node;
while (pool.length && !node) {
const ref = pool.pop();
node = ref?.deref?.();
}
return node;
};
// Releases a voice from use and adds to the inactive pool
export const releaseVoice = (key, node) => {
voicePools[key] ??= [];
voicePools[key].push(new WeakRef(node));
};
export const getParamADSR = (
param,
attack,
@@ -238,7 +259,7 @@ export function createFilter(context, start, end, params, cps) {
if (sync != null) {
rate = cps * sync;
}
const lfoValues = { depth, dcoffset, skew, shape, frequency: rate };
const lfoValues = { depth, dcoffset, skew, shape, frequency: rate, min: 10, max: 20000 };
getParamLfo(context, frequencyParam, start, end, lfoValues);
return filter;
}
@@ -262,7 +283,15 @@ export function drywet(dry, wet, wetAmount = 0) {
let mix = ac.createGain();
dry_gain.connect(mix);
wet_gain.connect(mix);
return mix;
return {
node: mix,
onended: () => {
dry_gain.disconnect(mix);
wet_gain.disconnect(mix);
dry.disconnect(dry_gain);
wet.disconnect(wet_gain);
},
};
}
let curves = ['linear', 'exponential'];
@@ -297,6 +326,10 @@ export function getVibratoOscillator(param, value, t) {
gain.gain.value = vibmod * 100;
vibratoOscillator.connect(gain);
gain.connect(param);
vibratoOscillator.onended = () => {
gain.disconnect(param);
vibratoOscillator.disconnect(gain);
};
vibratoOscillator.start(t);
return vibratoOscillator;
}
@@ -306,6 +339,17 @@ export function scheduleAtTime(callback, targetTime, audioContext = getAudioCont
const currentTime = audioContext.currentTime;
webAudioTimeout(audioContext, callback, currentTime, targetTime);
}
let silencer;
function getSilencer() {
const ac = getAudioContext();
if (!silencer) {
silencer = gainNode(0);
silencer.connect(ac.destination);
}
return silencer;
}
// ConstantSource inherits AudioScheduledSourceNode, which has scheduling abilities
// a bit of a hack, but it works very well :)
export function webAudioTimeout(audioContext, onComplete, startTime, stopTime) {
@@ -313,18 +357,11 @@ export function webAudioTimeout(audioContext, onComplete, startTime, stopTime) {
// Certain browsers requires audio nodes to be connected in order for their onended events
// to fire, so we _mute it_ and then connect it to the destination
const zeroGain = gainNode(0);
zeroGain.connect(audioContext.destination);
const zeroGain = getSilencer();
constantNode.connect(zeroGain);
// Schedule the `onComplete` callback to occur at `stopTime`
constantNode.onended = () => {
// Ensure garbage collection
try {
zeroGain.disconnect();
} catch {
// pass
}
try {
constantNode.disconnect();
} catch {
@@ -410,11 +447,16 @@ export function applyFM(param, value, begin) {
// Saturation curves
const fastTanh = (x) => {
const x2 = x * x;
const y = (x * (27 + x2)) / (27 + 9 * x2);
return y < -1 ? -1 : y > 1 ? 1 : y;
};
const __squash = (x) => x / (1 + x); // [0, inf) to [0, 1)
const _mod = (n, m) => ((n % m) + m) % m;
const _scurve = (x, k) => ((1 + k) * x) / (1 + k * Math.abs(x));
const _soft = (x, k) => Math.tanh(x * (1 + k));
const _soft = (x, k) => fastTanh(x * (1 + k));
const _hard = (x, k) => clamp((1 + k) * x, -1, 1);
const _fold = (x, k) => {
@@ -454,13 +496,8 @@ const _chebyshev = (x, k) => {
let tnm1 = 1;
let tnm2 = x;
let tn;
let y = 0;
for (let i = 1; i < 64; i++) {
if (i < 2) {
// Already set inital conditions
y += i == 0 ? tnm1 : tnm2;
continue;
}
let y = x;
for (let i = 2; i < 64; i++) {
tn = 2 * x * tnm1 - tnm2; // https://en.wikipedia.org/wiki/Chebyshev_polynomials#Recurrence_definition
tnm2 = tnm1;
tnm1 = tn;
@@ -525,3 +562,25 @@ export const destroyAudioWorkletNode = (node) => {
node.disconnect();
node.parameters.get('end')?.setValueAtTime(0, 0);
};
export const setParams = (node, params, t) => {
const ac = getAudioContext();
t ??= ac.currentTime;
const workletParams = node && node.parameters && typeof node.parameters.get === 'function';
for (const [key, value] of Object.entries(params)) {
if (value == null) continue;
let param;
if (workletParams) {
param = node.parameters.get(key);
}
if (param == null && node[key] instanceof AudioParam) {
param = node[key];
}
if (param instanceof AudioParam) {
param.cancelScheduledValues(t);
param.setValueAtTime(value, t);
} else {
node[key] = value;
}
}
};
+2 -1
View File
@@ -65,8 +65,9 @@ export function getNoiseOscillator(type = 'white', t, density = 0.02) {
export function getNoiseMix(inputNode, wet, t) {
const noiseOscillator = getNoiseOscillator('pink', t);
const noiseMix = drywet(inputNode, noiseOscillator.node, wet);
noiseOscillator.node.onended = () => noiseMix.onended();
return {
node: noiseMix,
node: noiseMix.node,
stop: (time) => noiseOscillator?.stop(time),
};
}
+2
View File
@@ -104,6 +104,8 @@ var applyGradualLowpass = function (input, lpFreqStart, lpFreqEnd, lpFreqEndAt,
player.start();
context.oncomplete = function (event) {
callback(event.renderedBuffer);
filter.disconnect();
player.disconnect();
};
context.startRendering();
+14 -11
View File
@@ -478,15 +478,16 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
const endWithRelease = end + release;
const chainID = Math.round(Math.random() * 1000000);
// oldest audio nodes will be destroyed if maximum polyphony is exceeded
for (let i = 0; i <= activeSoundSources.size - maxPolyphony; i++) {
const ch = activeSoundSources.entries().next();
const source = ch.value[1];
const chainID = ch.value[0];
// oldest audio nodes will be stopped if maximum polyphony is exceeded
while (activeSoundSources.size >= maxPolyphony) {
const { value: entry } = activeSoundSources.entries().next();
if (!entry) break;
const [oldChainID, ref] = entry;
const handle = ref?.deref();
const endTime = t + 0.25;
source?.node?.gain?.linearRampToValueAtTime(0, endTime);
source?.stop?.(endTime);
activeSoundSources.delete(chainID);
handle?.node?.gain?.linearRampToValueAtTime?.(0, endTime);
handle?.stop?.(endTime);
activeSoundSources.delete(oldChainID);
}
let audioNodes = [];
@@ -513,7 +514,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
if (soundHandle) {
sourceNode = soundHandle.node;
activeSoundSources.set(chainID, soundHandle);
activeSoundSources.set(chainID, new WeakRef(soundHandle)); // allow GC
}
} else {
throw new Error(`sound ${s} not found! Is it loaded?`);
@@ -692,7 +693,8 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
// delay
if (delay > 0 && delaytime > 0 && delayfeedback > 0) {
orbitBus.getDelay(delaytime, delayfeedback, t);
orbitBus.sendDelay(post, delay);
const send = orbitBus.sendDelay(post, delay);
audioNodes.push(send);
}
// reverb
if (room > 0) {
@@ -708,7 +710,8 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
roomIR = await loadBuffer(url, ac, ir, 0);
}
orbitBus.getReverb(roomsize, roomfade, roomlp, roomdim, roomIR, irspeed, irbegin);
orbitBus.sendReverb(post, room);
const send = orbitBus.sendReverb(post, room);
audioNodes.push(send);
}
if (djf != null) {
+2 -2
View File
@@ -78,11 +78,11 @@ export class Orbit {
return this.reverbNode;
}
sendReverb(node, amount) {
effectSend(node, this.reverbNode, amount);
return effectSend(node, this.reverbNode, amount);
}
sendDelay(node, amount) {
effectSend(node, this.delayNode, amount);
return effectSend(node, this.delayNode, amount);
}
duck(t, onsettime = 0, attacktime = 0.1, depth = 1) {
+78 -47
View File
@@ -3,6 +3,7 @@ import { registerSound, soundMap } from './superdough.mjs';
import { getAudioContext } from './audioContext.mjs';
import {
applyFM,
claimVoice,
destroyAudioWorkletNode,
gainNode,
getADSRValues,
@@ -12,12 +13,15 @@ import {
getPitchEnvelope,
getVibratoOscillator,
getWorklet,
setParams,
releaseVoice,
noises,
webAudioTimeout,
} from './helpers.mjs';
import { logger } from './logger.mjs';
import { getNoiseMix, getNoiseOscillator } from './noise.mjs';
const waveforms = ['triangle', 'square', 'sawtooth', 'sine'];
const waveforms = ['triangle', 'square', 'sawtooth', 'sine', 'user'];
const waveformAliases = [
['tri', 'triangle'],
['sqr', 'square'],
@@ -47,19 +51,17 @@ export function registerSynthSounds() {
[0.001, 0.05, 0.6, 0.01],
);
let 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();
let sound = getOscillator(s, t, value, () => {
g.disconnect();
onended();
};
});
let { node: o, stop, triggerRelease } = sound;
const { duration } = value;
const envGain = gainNode(1);
let node = o.connect(g).connect(envGain);
@@ -165,36 +167,38 @@ export function registerSynthSounds() {
const end = holdend + release + 0.01;
const voices = clamp(unison, 1, 100);
let panspread = voices > 1 ? clamp(spread, 0, 1) : 0;
let o = getWorklet(
ac,
'supersaw-oscillator',
{
frequency,
begin,
end,
freqspread: detune,
voices,
panspread,
},
{
let o = claimVoice('supersaw');
const params = {
frequency,
begin,
end,
freqspread: detune,
panspread,
};
const processorOptions = {
voices,
};
if (o == null) {
o = getWorklet(ac, 'supersaw-oscillator', params, {
outputChannelCount: [2],
},
);
processorOptions,
});
} else {
setParams(o, params);
o.port.postMessage({ type: 'reset', payload: { processorOptions } });
}
const gainAdjustment = 1 / Math.sqrt(voices);
getPitchEnvelope(o.parameters.get('detune'), value, begin, holdend);
const vibratoOscillator = getVibratoOscillator(o.parameters.get('detune'), value, begin);
const fm = applyFM(o.parameters.get('frequency'), value, begin);
let envGain = gainNode(1);
envGain = o.connect(envGain);
const envGain = o.connect(gainNode(1));
getParamADSR(envGain.gain, attack, decay, sustain, release, 0, 0.3 * gainAdjustment, begin, holdend, 'linear');
let timeoutNode = webAudioTimeout(
const timeoutNode = webAudioTimeout(
ac,
() => {
destroyAudioWorkletNode(o);
envGain.disconnect();
releaseVoice('supersaw', o);
onended();
fm?.stop();
vibratoOscillator?.stop();
@@ -268,7 +272,7 @@ export function registerSynthSounds() {
getParamADSR(envGain.gain, attack, decay, sustain, release, 0, 1, begin, holdend, 'linear');
let timeoutNode = webAudioTimeout(
const timeoutNode = webAudioTimeout(
ac,
() => {
destroyAudioWorkletNode(o);
@@ -342,7 +346,7 @@ export function registerSynthSounds() {
lfo = getLfo(ac, begin, end, { frequency: pwrate, depth: pwsweep });
lfo.connect(o.parameters.get('pulsewidth'));
}
let timeoutNode = webAudioTimeout(
const timeoutNode = webAudioTimeout(
ac,
() => {
destroyAudioWorkletNode(o);
@@ -414,9 +418,13 @@ export function registerSynthSounds() {
waveformAliases.forEach(([alias, actual]) => soundMap.set({ ...soundMap.get(), [alias]: soundMap.get()[actual] }));
}
export function waveformN(partials, type) {
const real = new Float32Array(partials + 1);
const imag = new Float32Array(partials + 1);
const PI2 = 2 * Math.PI;
export function waveformN(partials, phases, type) {
const isList = typeof partials === 'object';
partials = isList ? partials : new Float32Array(partials).fill(1);
const len = partials.length;
const real = new Float32Array(len + 1);
const imag = new Float32Array(len + 1);
const ac = getAudioContext();
const osc = ac.createOscillator();
@@ -424,20 +432,29 @@ export function waveformN(partials, type) {
sawtooth: (n) => [0, -1 / n],
square: (n) => [0, n % 2 === 0 ? 0 : 1 / n],
triangle: (n) => [n % 2 === 0 ? 0 : 1 / (n * n), 0],
user: (_n) => [0, 1],
};
if (!terms[type]) {
throw new Error(`unknown wave type ${type}`);
}
real[0] = 0; // dc offset
imag[0] = 0;
let n = 1;
while (n <= partials) {
const [r, i] = terms[type](n);
real[n] = r;
imag[n] = i;
n++;
for (let n = 0; n < len; n++) {
const mag = partials[n];
const [r, i] = terms[type](n + 1); // we skip n === 0 as this is dc offset
const phase = phases?.[n] ?? 0;
// Scale by `partials`
let R = r * mag;
let I = i * mag;
// Apply rotation by the phase
if (phase !== 0) {
const c = Math.cos(PI2 * phase);
const s = Math.sin(PI2 * phase);
R = c * R - s * I;
I = s * R + c * I;
}
real[n + 1] = R;
imag[n + 1] = I;
}
const wave = ac.createPeriodicWave(real, imag);
@@ -446,21 +463,28 @@ export function waveformN(partials, type) {
}
// expects one of waveforms as s
export function getOscillator(s, t, value) {
let { n: partials, duration, noise = 0 } = value;
export function getOscillator(s, t, value, onended) {
const { duration, noise = 0 } = value;
const partials = value.partials ?? value.n;
let o;
if (s === 'user' && !partials) {
logger(
`[superdough] Synth 'user' was selected, but partials not specified. Defaulting to triangle. Use pat.partials to setup custom waveform`,
);
s = 'triangle';
}
s = s === 'user' && !partials ? 'triangle' : s;
// If no partials are given, use stock waveforms
if (!partials || s === 'sine') {
if (!partials || partials?.length === 0 || s === 'sine') {
o = getAudioContext().createOscillator();
o.type = s || 'triangle';
}
// generate custom waveform if partials are given
else {
o = waveformN(partials, s);
o = waveformN(partials, value.phases, s);
}
// set frequency
o.frequency.value = getFrequencyFromValue(value);
o.start(t);
let vibratoOscillator = getVibratoOscillator(o.detune, value, t);
@@ -473,6 +497,13 @@ export function getOscillator(s, t, value) {
noiseMix = getNoiseMix(o, noise, t);
}
o.onended = () => {
o.disconnect();
noiseMix?.node.disconnect();
onended();
};
o.start(t);
return {
node: noiseMix?.node || o,
stop: (time) => {
+38 -2
View File
@@ -3,6 +3,8 @@ import { logger } from './logger.mjs';
// currently duplicate with core util.mjs to skip dependency
// TODO: add separate util module?
export const LN2 = Math.LN2;
export const tokenizeNote = (note) => {
if (typeof note !== 'string') {
return [];
@@ -32,10 +34,9 @@ export const noteToMidi = (note, defaultOctave = 3) => {
export const midiToFreq = (n) => {
return Math.pow(2, (n - 69) / 12) * 440;
};
export const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
export const freqToMidi = (freq) => {
return (12 * Math.log(freq / 440)) / Math.LN2 + 69;
return (12 * Math.log(freq / 440)) / LN2 + 69;
};
export const valueToMidi = (value, fallbackValue) => {
@@ -114,3 +115,38 @@ export function getCommonSampleInfo(hapValue, bank) {
export const pickAndRename = (source, map) => {
return Object.fromEntries(Object.entries(map).map(([newKey, oldKey]) => [newKey, source[oldKey]]));
};
// Optimized / numerical functions (ideal for hot dsp loops)
// Optimized clamp (~1.7x faster than Math.max/min approach)
export const clamp = (num, min, max) => {
if (num < min) return min;
if (num > max) return max;
return num;
};
export const mod = (n, m) => ((n % m) + m) % m;
export const lerp = (a, b, n) => n * (b - a) + a;
export const frac = (x) => x - Math.floor(x);
// Fast integer ops for non-negative values
export const ffloor = (x) => x | 0;
export const fround = (x) => ffloor(x + 0.5);
export const fceil = (x) => ffloor(x + 1);
export const ffrac = (x) => x - ffloor(x);
export const fastexpm1 = (x) => x * (1 + x + 0.5 * x * x); // Taylor approximation
export const fastpow2 = (x) => {
// Taylor approximation of 2 ^ x
const a = x * LN2;
return 1 + a * (1 + a * (0.5 + a / 6));
};
export const applySemitoneDetuneToFrequency = (frequency, detune) => {
return frequency * Math.pow(2, detune / 12);
};
export const applyFastDetune = (frequency, detune) => {
if (detune < 4) return frequency * fastpow2(detune / 12);
return applySemitoneDetuneToFrequency(frequency, detune);
};
+35 -24
View File
@@ -3,14 +3,18 @@ import { getCommonSampleInfo } from './util.mjs';
import {
applyFM,
applyParameterModulators,
destroyAudioWorkletNode,
claimVoice,
gainNode,
getADSRValues,
getFrequencyFromValue,
getParamADSR,
getPitchEnvelope,
getVibratoOscillator,
getWorklet,
setParams,
releaseVoice,
webAudioTimeout,
destroyAudioWorkletNode,
} from './helpers.mjs';
import { logger } from './logger.mjs';
@@ -218,32 +222,39 @@ export async function onTriggerSynth(t, value, onended, tables, cps, frameLen) {
const frequency = getFrequencyFromValue(value);
const { url, label } = getCommonSampleInfo(value, tables);
const payload = await getPayload(url, label, frameLen);
const voiceKey = `wavetable:${payload.key}`;
let holdEnd = t + duration;
if (clip !== undefined) {
holdEnd = Math.min(t + clip * duration, holdEnd);
}
const endWithRelease = holdEnd + release;
const envEnd = endWithRelease + 0.01;
const source = getWorklet(
ac,
'wavetable-oscillator-processor',
{
begin: t,
end: envEnd,
frequency,
freqspread: value.detune,
position: value.wt,
warp: value.warp,
warpMode: warpmode,
voices: Math.max(value.unison ?? 1, 1),
panspread: value.spread,
phaserand: (value.wtphaserand ?? value.unison > 1) ? 1 : 0,
},
{ outputChannelCount: [2] },
);
let source = claimVoice(voiceKey);
const params = {
begin: t,
end: envEnd,
frequency,
freqspread: value.detune,
position: value.wt,
warp: value.warp,
warpMode: warpmode,
panspread: value.spread,
};
const processorOptions = {
phaseRand: value.wtphaserand ?? (value.unison > 1 ? 1 : 0),
voices: Math.max(value.unison ?? 1, 1),
};
if (source == null) {
source = getWorklet(ac, 'wavetable-oscillator-processor', params, { outputChannelCount: [2], processorOptions });
} else {
setParams(source, params);
source.port.postMessage({ type: 'reset', payload: { processorOptions } });
}
source.port.postMessage({ type: 'table', payload });
if (ac.currentTime > t) {
logger(`[wavetable] still loading sound "${s}:${n}"`, 'highlight');
destroyAudioWorkletNode(source);
releaseVoice(voiceKey, source);
return;
}
const posADSRParams = [value.wtattack, value.wtdecay, value.wtsustain, value.wtrelease];
@@ -310,20 +321,20 @@ export async function onTriggerSynth(t, value, onended, tables, cps, frameLen) {
);
const vibratoOscillator = getVibratoOscillator(source.parameters.get('detune'), value, t);
const fm = applyFM(source.parameters.get('frequency'), value, t);
const envGain = ac.createGain();
const node = source.connect(envGain);
getParamADSR(node.gain, attack, decay, sustain, release, 0, 0.3, t, holdEnd, 'linear');
const envGain = source.connect(gainNode(1));
getParamADSR(envGain.gain, attack, decay, sustain, release, 0, 0.3, t, holdEnd, 'linear');
getPitchEnvelope(source.parameters.get('detune'), value, t, holdEnd);
const handle = { node, source };
const handle = { node: envGain };
const timeoutNode = webAudioTimeout(
ac,
() => {
destroyAudioWorkletNode(source);
vibratoOscillator?.stop();
fm?.stop();
node.disconnect();
wtPosModulators?.disconnect();
wtWarpModulators?.disconnect();
envGain.disconnect();
destroyAudioWorkletNode(source);
releaseVoice(voiceKey, source);
onended();
},
t,
+343 -287
View File
@@ -5,52 +5,56 @@
import OLAProcessor from './ola-processor';
import FFT from './fft.js';
import { getDistortionAlgorithm } from './helpers.mjs';
import {
applyFastDetune,
applySemitoneDetuneToFrequency,
clamp,
fastexpm1,
fceil,
ffloor,
ffrac,
frac,
fround,
lerp,
} from './util.mjs';
const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
const mod = (n, m) => ((n % m) + m) % m;
const lerp = (a, b, n) => n * (b - a) + a;
const pv = (arr, n) => arr[n] ?? arr[0];
const frac = (x) => x - Math.floor(x);
const ffloor = (x) => x | 0; // fast floor for non-negative
const getUnisonDetune = (unison, detune, voiceIndex) => {
if (unison < 2) {
return 0;
}
return lerp(-detune * 0.5, detune * 0.5, voiceIndex / (unison - 1));
};
const applySemitoneDetuneToFrequency = (frequency, detune) => {
return frequency * Math.pow(2, detune / 12);
};
// Restrict phase to the range [0, maxPhase) via wrapping
function wrapPhase(phase, maxPhase = 1) {
if (phase >= maxPhase) {
phase -= maxPhase;
} else if (phase < 0) {
phase += maxPhase;
}
return phase;
}
const blockSize = 128;
const PI = Math.PI;
const TWO_PI = 2 * PI;
const INVSR = 1 / sampleRate;
const MAX_VOICES = 64;
const pv = (arr, n) => arr[n] ?? arr[0];
const fast_tanh = (x) => {
const x2 = x * x;
return (x * (27 + x2)) / (27 + 9 * x2);
};
// Optimized per-voice detuner which precomputes constants
const getDetuner = (unison, detune) => {
if (unison < 2) {
return (_voiceIdx) => 0;
}
const scale = detune / (unison - 1);
const center = detune * 0.5;
return (voiceIdx) => voiceIdx * scale - center;
};
// Smooth waveshape near discontinuities to remove frequencies above Nyquist and prevent aliasing
// referenced from https://www.kvraudio.com/forum/viewtopic.php?t=375517
function polyBlep(phase, dt) {
dt = Math.min(dt, 1 - dt);
const invdt = 1 / dt;
// Start of cycle
if (phase < dt) {
phase /= dt;
// 2 * (phase - phase^2/2 - 0.5)
return phase + phase - phase * phase - 1;
phase *= invdt;
return 2 * phase - phase ** 2 - 1;
}
// End of cycle
else if (phase > 1 - dt) {
phase = (phase - 1) / dt;
// 2 * (phase^2/2 + phase + 0.5)
return phase * phase + phase + phase + 1;
phase = (phase - 1) * invdt;
return phase ** 2 + 2 * phase + 1;
}
// 0 otherwise
else {
return 0;
@@ -66,7 +70,7 @@ const waveshapes = {
return phase / skew;
},
sine(phase) {
return Math.sin(Math.PI * 2 * phase) * 0.5 + 0.5;
return Math.sin(TWO_PI * phase) * 0.5 + 0.5;
},
ramp(phase) {
return phase;
@@ -100,12 +104,6 @@ const waveshapes = {
return v - polyBlep(phase, dt);
},
};
function getParamValue(block, param) {
if (param.length > 1) {
return param[block];
}
return param[0];
}
const waveShapeNames = Object.keys(waveshapes);
class LFOProcessor extends AudioWorkletProcessor {
@@ -165,14 +163,15 @@ class LFOProcessor extends AudioWorkletProcessor {
const blockSize = output[0].length ?? 0;
if (this.phase == null) {
this.phase = mod(time * frequency + phaseoffset, 1);
this.phase = ffrac(time * frequency + phaseoffset);
}
const dt = frequency / sampleRate;
const dt = frequency * INVSR;
for (let n = 0; n < blockSize; n++) {
let modval = (waveshapes[shape](this.phase, skew) + dcoffset) * depth;
modval = curve !== 1 ? Math.pow(modval, curve) : modval;
const out = clamp(modval, min, max);
for (let i = 0; i < output.length; i++) {
let modval = (waveshapes[shape](this.phase, skew) + dcoffset) * depth;
modval = Math.pow(modval, curve);
output[i][n] = clamp(modval, min, max);
output[i][n] = out;
}
this.incrementPhase(dt);
}
@@ -293,8 +292,8 @@ class TwoPoleFilter {
// Out of bound values can produce NaNs
resonance = clamp(resonance, 0, 1);
cutoff = clamp(cutoff, 0, sampleRate / 2 - 1);
const c = clamp(2 * Math.sin(cutoff * (_PI / sampleRate)), 0, 1.14);
const r = Math.pow(0.5, (resonance + 0.125) / 0.125);
const c = clamp(2 * Math.sin(cutoff * PI * INVSR), 0, 1.14);
const r = Math.pow(0.5, 8 * resonance + 1);
const mrc = 1 - r * c;
this.s0 = mrc * this.s0 - c * this.s1 + c * s; // bpf
this.s1 = mrc * this.s1 + c * this.s0; // lpf
@@ -353,11 +352,6 @@ class DJFProcessor extends AudioWorkletProcessor {
}
registerProcessor('djf-processor', DJFProcessor);
function fast_tanh(x) {
const x2 = x * x;
return (x * (27.0 + x2)) / (27.0 + 9.0 * x2);
}
const _PI = 3.14159265359;
//adapted from https://github.com/TheBouteillacBear/webaudioworklet-wasm?tab=MIT-1-ov-file
class LadderProcessor extends AudioWorkletProcessor {
static get parameterDescriptors() {
@@ -395,7 +389,7 @@ class LadderProcessor extends AudioWorkletProcessor {
const drive = clamp(Math.exp(parameters.drive[0]), 0.1, 2000);
let cutoff = parameters.frequency[0];
cutoff = (cutoff * 2 * _PI) / sampleRate;
cutoff = cutoff * TWO_PI * INVSR;
cutoff = cutoff > 1 ? 1 : cutoff;
const k = Math.min(8, resonance * 0.13);
@@ -448,7 +442,7 @@ class DistortProcessor extends AudioWorkletProcessor {
this.started = hasInput;
for (let n = 0; n < blockSize; n++) {
const postgain = clamp(pv(parameters.postgain, n), 0.001, 1);
const shape = Math.expm1(pv(parameters.distort, n));
const shape = fastexpm1(pv(parameters.distort, n));
for (let ch = 0; ch < input.length; ch++) {
const x = input[ch][n];
output[ch][n] = postgain * this.algorithm(x, shape);
@@ -461,9 +455,17 @@ registerProcessor('distort-processor', DistortProcessor);
// SUPERSAW
class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
constructor() {
constructor(options) {
super();
this.phase = [];
this.phases = new Float32Array(MAX_VOICES);
this.reset(options.processorOptions);
}
reset(options) {
const phases = this.phases;
for (let i = 0; i < phases.length; i++) {
phases[i] = Math.random();
}
this.voices = options.voices;
}
static get parameterDescriptors() {
return [
@@ -473,20 +475,17 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
max: Number.POSITIVE_INFINITY,
min: 0,
},
{
name: 'end',
defaultValue: 0,
max: Number.POSITIVE_INFINITY,
min: 0,
},
{
name: 'frequency',
defaultValue: 440,
min: Number.EPSILON,
},
{
name: 'panspread',
defaultValue: 0.4,
@@ -503,56 +502,57 @@ class SuperSawOscillatorProcessor extends AudioWorkletProcessor {
defaultValue: 0,
min: 0,
},
{
name: 'voices',
defaultValue: 5,
min: 1,
},
];
}
process(_input, outputs, params) {
if (currentTime <= params.begin[0]) {
const started = currentTime >= params.begin[0];
const ended = currentTime >= params.end[0];
if (!started || ended) {
return true;
}
if (currentTime >= params.end[0]) {
// this.port.postMessage({ type: 'onended' });
return false;
}
const output = outputs[0];
for (let i = 0; i < output[0].length; i++) {
const detune = pv(params.detune, i);
const voices = pv(params.voices, i);
const freqspread = pv(params.freqspread, i);
const panspread = pv(params.panspread, i) * 0.5 + 0.5;
const gain1 = Math.sqrt(1 - panspread);
const gain2 = Math.sqrt(panspread);
let freq = pv(params.frequency, i);
// Main detuning
// fast k-rate paths
let freq, detune, freqspread, detuner;
if (params.freqspread.length === 1) {
freqspread = params.freqspread[0];
detuner = getDetuner(this.voices, freqspread);
}
if (params.frequency.length === 1 && params.detune.length === 1) {
freq = params.frequency[0];
detune = params.detune[0];
freq = applySemitoneDetuneToFrequency(freq, detune / 100);
for (let n = 0; n < voices; n++) {
const isOdd = (n & 1) == 1;
let gainL = gain1;
let gainR = gain2;
// invert right and left gain
if (isOdd) {
gainL = gain2;
gainR = gain1;
}
}
let panspread, gainL, gainR;
if (params.panspread.length === 1) {
panspread = this.voices > 1 ? clamp(params.panspread[0], 0, 1) : 0;
gainL = Math.sqrt(0.5 - 0.5 * panspread);
gainR = Math.sqrt(0.5 + 0.5 * panspread);
}
for (let i = 0; i < output[0].length; i++) {
const panspread = pv(params.panspread, i) * 0.5 + 0.5;
gainL = Math.sqrt(1 - panspread);
gainR = Math.sqrt(panspread);
// Main detuning (a-rate path)
detune ??= pv(params.detune, i);
freqspread ??= pv(params.freqspread, i);
freq ??= applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
detuner ??= getDetuner(this.voices, freqspread);
for (let n = 0; n < this.voices; n++) {
// Individual voice detuning
const freqVoice = applySemitoneDetuneToFrequency(freq, getUnisonDetune(voices, freqspread, n));
const freqVoice = applyFastDetune(freq, detuner(n));
// We must wrap this here because it is passed into sawblep below which
// has domain [0, 1]
const dt = mod(freqVoice / sampleRate, 1);
this.phase[n] = this.phase[n] ?? Math.random();
const v = waveshapes.sawblep(this.phase[n], dt);
output[0][i] = output[0][i] + v * gainL;
output[1][i] = output[1][i] + v * gainR;
this.phase[n] = wrapPhase(this.phase[n] + dt);
const dt = frac(freqVoice * INVSR);
const v = waveshapes.sawblep(this.phases[n], dt);
output[0][i] += v * gainL;
output[1][i] += v * gainR;
let pn = this.phases[n] + dt;
if (pn >= 1.0) pn -= 1.0;
this.phases[n] = pn;
// invert right and left gain
const tmp = gainL;
gainL = gainR;
gainR = tmp;
}
}
return true;
@@ -564,12 +564,16 @@ registerProcessor('supersaw-oscillator', SuperSawOscillatorProcessor);
// Phase Vocoder sourced from https://github.com/olvb/phaze/tree/master?tab=readme-ov-file
const BUFFERED_BLOCK_SIZE = 2048;
const hannCache = new Map();
function genHannWindow(length) {
let win = new Float32Array(length);
for (var i = 0; i < length; i++) {
win[i] = 0.5 * (1 - Math.cos((2 * Math.PI * i) / length));
if (!hannCache.has(length)) {
const win = new Float32Array(length);
for (let i = 0; i < length; i++) {
win[i] = 0.5 * (1 - Math.cos((TWO_PI * i) / length));
}
hannCache.set(length, win);
}
return win;
return hannCache.get(length);
}
class PhaseVocoderProcessor extends OLAProcessor {
@@ -587,11 +591,10 @@ class PhaseVocoderProcessor extends OLAProcessor {
blockSize: BUFFERED_BLOCK_SIZE,
};
super(options);
this.fftSize = this.blockSize;
this.timeCursor = 0;
this.hannWindow = genHannWindow(this.blockSize);
this.fftSize = this.blockSize;
this.invfftSize = 1 / this.fftSize;
this.hannWindow = genHannWindow(this.fftSize);
// prepare FFT and pre-allocate buffers
this.fft = new FFT(this.fftSize);
this.freqComplexBuffer = this.fft.createComplexArray();
@@ -604,52 +607,43 @@ class PhaseVocoderProcessor extends OLAProcessor {
processOLA(inputs, outputs, parameters) {
// no automation, take last value
let pitchFactor = parameters.pitchFactor[parameters.pitchFactor.length - 1];
if (pitchFactor < 0) {
pitchFactor = pitchFactor * 0.25;
}
pitchFactor = Math.max(0, pitchFactor + 1);
for (var i = 0; i < this.nbInputs; i++) {
for (var j = 0; j < inputs[i].length; j++) {
// big assumption here: output is symetric to input
var input = inputs[i][j];
var output = outputs[i][j];
for (let i = 0; i < this.nbInputs; i++) {
for (let j = 0; j < inputs[i].length; j++) {
const input = inputs[i][j];
const output = outputs[i][j];
this.applyHannWindow(input);
this.fft.realTransform(this.freqComplexBuffer, input);
this.computeMagnitudes();
this.findPeaks();
this.shiftPeaks(pitchFactor);
this.fft.completeSpectrum(this.freqComplexBufferShifted);
this.fft.inverseTransform(this.timeComplexBuffer, this.freqComplexBufferShifted);
this.fft.fromComplexArray(this.timeComplexBuffer, output);
this.applyHannWindow(output);
}
}
this.timeCursor += this.hopSize;
}
/** Apply Hann window in-place */
applyHannWindow(input) {
for (var i = 0; i < this.blockSize; i++) {
input[i] = input[i] * this.hannWindow[i] * 1.62;
for (let i = 0; i < this.blockSize; i++) {
input[i] *= this.hannWindow[i] * 1.62;
}
}
/** Compute squared magnitudes for peak finding **/
computeMagnitudes() {
var i = 0,
let i = 0,
j = 0;
while (i < this.magnitudes.length) {
let real = this.freqComplexBuffer[j];
let imag = this.freqComplexBuffer[j + 1];
const real = this.freqComplexBuffer[j];
const imag = this.freqComplexBuffer[j + 1];
// no need to sqrt for peak finding
this.magnitudes[i] = real ** 2 + imag ** 2;
i += 1;
@@ -660,12 +654,10 @@ class PhaseVocoderProcessor extends OLAProcessor {
/** Find peaks in spectrum magnitudes **/
findPeaks() {
this.nbPeaks = 0;
var i = 2;
let end = this.magnitudes.length - 2;
let i = 2;
const end = this.magnitudes.length - 2;
while (i < end) {
let mag = this.magnitudes[i];
const mag = this.magnitudes[i];
if (this.magnitudes[i - 1] >= mag || this.magnitudes[i - 2] >= mag) {
i++;
continue;
@@ -674,7 +666,6 @@ class PhaseVocoderProcessor extends OLAProcessor {
i++;
continue;
}
this.peakIndexes[this.nbPeaks] = i;
this.nbPeaks++;
i += 2;
@@ -685,53 +676,44 @@ class PhaseVocoderProcessor extends OLAProcessor {
shiftPeaks(pitchFactor) {
// zero-fill new spectrum
this.freqComplexBufferShifted.fill(0);
for (var i = 0; i < this.nbPeaks; i++) {
let peakIndex = this.peakIndexes[i];
let peakIndexShifted = Math.round(peakIndex * pitchFactor);
for (let i = 0; i < this.nbPeaks; i++) {
const peakIndex = this.peakIndexes[i];
const peakIndexShifted = fround(peakIndex * pitchFactor);
if (peakIndexShifted > this.magnitudes.length) {
break;
}
// find region of influence
var startIndex = 0;
var endIndex = this.fftSize;
let startIndex = 0;
let endIndex = this.fftSize;
if (i > 0) {
let peakIndexBefore = this.peakIndexes[i - 1];
startIndex = peakIndex - Math.floor((peakIndex - peakIndexBefore) / 2);
startIndex = peakIndex - fround((peakIndex - this.peakIndexes[i - 1]) / 2);
}
if (i < this.nbPeaks - 1) {
let peakIndexAfter = this.peakIndexes[i + 1];
endIndex = peakIndex + Math.ceil((peakIndexAfter - peakIndex) / 2);
endIndex = peakIndex + fceil((this.peakIndexes[i + 1] - peakIndex) / 2);
}
// shift whole region of influence around peak to shifted peak
let startOffset = startIndex - peakIndex;
let endOffset = endIndex - peakIndex;
for (var j = startOffset; j < endOffset; j++) {
let binIndex = peakIndex + j;
let binIndexShifted = peakIndexShifted + j;
const startOffset = startIndex - peakIndex;
const endOffset = endIndex - peakIndex;
const omegaDelta = TWO_PI * this.invfftSize * (peakIndexShifted - peakIndex);
const phaseShiftReal = Math.cos(omegaDelta * this.timeCursor);
const phaseShiftImag = Math.sin(omegaDelta * this.timeCursor);
for (let j = startOffset; j < endOffset; j++) {
const binIndex = peakIndex + j;
const binIndexShifted = peakIndexShifted + j;
if (binIndexShifted >= this.magnitudes.length) {
break;
}
// apply phase correction
let omegaDelta = (2 * Math.PI * (binIndexShifted - binIndex)) / this.fftSize;
let phaseShiftReal = Math.cos(omegaDelta * this.timeCursor);
let phaseShiftImag = Math.sin(omegaDelta * this.timeCursor);
const indexReal = 2 * binIndex;
const indexImag = indexReal + 1;
const valueReal = this.freqComplexBuffer[indexReal];
const valueImag = this.freqComplexBuffer[indexImag];
let indexReal = binIndex * 2;
let indexImag = indexReal + 1;
let valueReal = this.freqComplexBuffer[indexReal];
let valueImag = this.freqComplexBuffer[indexImag];
const valueShiftedReal = valueReal * phaseShiftReal - valueImag * phaseShiftImag;
const valueShiftedImag = valueReal * phaseShiftImag + valueImag * phaseShiftReal;
let valueShiftedReal = valueReal * phaseShiftReal - valueImag * phaseShiftImag;
let valueShiftedImag = valueReal * phaseShiftImag + valueImag * phaseShiftReal;
let indexShiftedReal = binIndexShifted * 2;
let indexShiftedImag = indexShiftedReal + 1;
const indexShiftedReal = 2 * binIndexShifted;
const indexShiftedImag = indexShiftedReal + 1;
this.freqComplexBufferShifted[indexShiftedReal] += valueShiftedReal;
this.freqComplexBufferShifted[indexShiftedImag] += valueShiftedImag;
}
@@ -745,11 +727,10 @@ registerProcessor('phase-vocoder-processor', PhaseVocoderProcessor);
class PulseOscillatorProcessor extends AudioWorkletProcessor {
constructor() {
super();
this.pi = _PI;
this.phi = -this.pi; // phase
this.phi = -PI; // phase
this.Y0 = 0; // feedback memories
this.Y1 = 0;
this.PW = this.pi; // pulse width
this.PW = PI; // pulse width
this.B = 2.3; // feedback coefficient
this.dphif = 0; // filtered phase increment
this.envf = 0; // filtered envelope
@@ -806,11 +787,11 @@ class PulseOscillatorProcessor extends AudioWorkletProcessor {
dphi;
for (let i = 0; i < (output[0].length ?? 0); i++) {
const pw = (1 - clamp(getParamValue(i, params.pulsewidth), -0.99, 0.99)) * this.pi;
const detune = getParamValue(i, params.detune);
const freq = applySemitoneDetuneToFrequency(getParamValue(i, params.frequency), detune / 100);
const pw = (1 - clamp(pv(params.pulsewidth, i), -0.99, 0.99)) * PI;
const detune = pv(params.detune, i);
const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
dphi = freq * (this.pi / (sampleRate * 0.5)); // phase increment
dphi = freq * TWO_PI * INVSR; // phase increment
this.dphif += 0.1 * (dphi - this.dphif);
env *= 0.9998; // exponential decay envelope
@@ -822,7 +803,7 @@ class PulseOscillatorProcessor extends AudioWorkletProcessor {
// Waveform generation (half-Tomisawa oscillators)
this.phi += this.dphif; // phase increment
if (this.phi >= this.pi) this.phi -= 2 * this.pi; // phase wrapping
if (this.phi >= PI) this.phi -= TWO_PI; // phase wrapping
// First half-Tomisawa generator
let out0 = Math.cos(this.phi + this.B * this.Y0); // self-phase modulation
@@ -852,24 +833,23 @@ const chyx = {
/*bit reverse*/ br: function (x, size = 8) {
if (size > 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) {
return Math.sin(x / (128 / Math.PI));
return Math.sin((x * PI) / 128);
},
/*cos that loops every 128 "steps", instead of every pi steps*/ cosf: function (x) {
return Math.cos(x / (128 / Math.PI));
return Math.cos((x * PI) / 128);
},
/*tan that loops every 128 "steps", instead of every pi steps*/ tanf: function (x) {
return Math.tan(x / (128 / Math.PI));
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));
},
};
@@ -877,7 +857,7 @@ const chyx = {
// Create shortened Math functions
let mathParams, byteBeatHelperFuncs;
function getByteBeatFunc(codetext) {
if ((mathParams || byteBeatHelperFuncs) == null) {
if (mathParams == null) {
mathParams = Object.getOwnPropertyNames(Math);
byteBeatHelperFuncs = mathParams.map((k) => Math[k]);
const chyxNames = Object.getOwnPropertyNames(chyx);
@@ -910,7 +890,7 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
this.func = getByteBeatFunc(codeText);
};
this.initialOffset = null;
this.initialOffset = 0;
this.t = null;
this.func = null;
}
@@ -957,18 +937,19 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
this.t = params.begin[0] * sampleRate;
}
const output = outputs[0];
const scale = 256 * INVSR;
for (let i = 0; i < output[0].length; i++) {
const detune = getParamValue(i, params.detune);
const freq = applySemitoneDetuneToFrequency(getParamValue(i, params.frequency), detune / 100);
let local_t = (this.t / (sampleRate / 256)) * freq + this.initialOffset;
const detune = pv(params.detune, i);
const freq = applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100);
const local_t = scale * freq * this.t + this.initialOffset;
const funcValue = this.func(local_t);
let signal = (funcValue & 255) / 127.5 - 1;
const out = signal * 0.2;
const signal = (funcValue & 255) / 127.5 - 1;
//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++) {
//prevent speaker blowout via clipping if threshold exceeds
output[c][i] = clamp(out, -0.4, 0.4);
output[c][i] = out;
}
this.t = this.t + 1;
this.t++;
}
return true; // keep the audio processing going
@@ -977,6 +958,102 @@ class ByteBeatProcessor extends AudioWorkletProcessor {
registerProcessor('byte-beat-processor', ByteBeatProcessor);
class EnvelopeProcessor extends AudioWorkletProcessor {
static get parameterDescriptors() {
return [
{ name: 'begin', defaultValue: 0 },
{ name: 'end', defaultValue: 0 },
{ name: 'attack', defaultValue: 0.005, minValue: 0 },
{ name: 'decay', defaultValue: 0.14, minValue: 0 },
{ name: 'sustain', defaultValue: 0, minValue: 0, maxValue: 1 },
{ name: 'release', defaultValue: 0.1, minValue: 0 },
{ name: 'attackCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
{ name: 'decayCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
{ name: 'releaseCurve', defaultValue: 0, minValue: -1, maxValue: 1 },
{ name: 'peak', defaultValue: 1 },
{ name: 'retrigger', defaultValue: 1, minValue: 0, maxValue: 1 },
];
}
constructor() {
super();
this.val = 0;
this.segIdx = 0;
this.state = 0;
this.beginTime = 0;
this.endTime = 0;
this.attackStart = 0;
}
_warp(phase, curvature, strength = 8) {
if (phase === 0 || phase === 1) return phase; // fast exit
if (curvature > 0) {
// snappier
const exp = 1 + strength * curvature;
return 1 - Math.pow(1 - phase, exp);
} else {
// more calm
const exp = 1 - strength * curvature;
return Math.pow(phase, exp);
}
}
_advance(start, target, time, curvature) {
if (time === 0 || start === target) {
this.val = target;
} else {
// We compute our progress through this section of the envelope in time
// as a `phase` value, which is warped by the curvature, and then used
// to compute the value of the envelope at that time
const phase = Math.min(1, (currentTime - this.beginTime) / time);
const phaseWarped = this._warp(phase, curvature);
this.val = start + (target - start) * phaseWarped;
}
}
process(_inputs, outputs, params) {
const out = outputs[0][0];
if (!out) return true;
const begin = pv(params.begin, 0);
const retrigger = pv(params.retrigger, 0) >= 0.5; // convert to bool
if (begin !== this.beginTime && (this.state === 0 || retrigger)) {
// triggered
this.beginTime = begin;
this.state = 1;
this.endTime = pv(params.end, 0);
this.attackStart = this.val;
}
const susTime = this.endTime - this.beginTime;
for (let i = 0; i < out.length; i++) {
const attack = pv(params.attack, i);
const decay = pv(params.decay, i);
const sustain = pv(params.sustain, i);
const release = pv(params.release, i);
const aCurve = pv(params.attackCurve, i);
const dCurve = pv(params.decayCurve, i);
const rCurve = pv(params.releaseCurve, i);
const peak = pv(params.peak, i);
const states = [
{ time: Number.POSITIVE_INFINITY, start: 0, target: 0 }, // idle
{ time: attack, start: this.attackStart, target: 1, curve: aCurve },
{ time: attack + decay, start: 1, target: sustain, curve: dCurve },
{ time: susTime, start: sustain, target: sustain },
{ time: susTime + release, start: sustain, target: 0, curve: rCurve },
];
let { time, start, target, curve } = states[this.state];
this._advance(start, target, time, curve);
while (currentTime - this.beginTime >= time) {
this.state = (this.state + 1) % states.length;
time = states[this.state].time;
}
out[i] = this.val * peak;
}
return true;
}
}
registerProcessor('envelope-processor', EnvelopeProcessor);
export const WarpMode = Object.freeze({
NONE: 0,
ASYM: 1,
@@ -1055,10 +1132,8 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
{ name: 'freqspread', defaultValue: 0.18, min: 0 },
{ name: 'position', defaultValue: 0, min: 0, max: 1 },
{ name: 'warp', defaultValue: 0, min: 0, max: 1 },
{ name: 'warpMode', defaultValue: 0 },
{ name: 'voices', defaultValue: 1, min: 1 },
{ name: 'warpMode', defaultValue: 0, automationRate: 'k-rate' },
{ name: 'panspread', defaultValue: 0.7, min: 0, max: 1 },
{ name: 'phaserand', defaultValue: 0, min: 0, max: 1 },
];
}
@@ -1066,36 +1141,32 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
super(options);
this.frameLen = 0;
this.numFrames = 0;
this.phase = [];
this.invSR = 1 / sampleRate;
this.phases = new Float32Array(MAX_VOICES);
this.port.onmessage = (e) => {
const { type, payload } = e.data || {};
if (type === 'table') {
const key = payload.key;
this.frameLen = payload.frameLen;
if (!tablesCache[key]) {
const tables = [payload.frames];
let table = tables[0];
for (let level = 1; level < 1; level++) {
const nextLen = table.length >> 1;
const nextTable = table.map((frame) => {
const avg = new Float32Array(nextLen);
for (let i = 0; i < nextLen; i++) {
avg[i] = (frame[2 * i] + frame[2 * i + 1]) / 2;
}
return avg;
});
tables.push(nextTable);
table = nextTable;
if (nextLen <= 32) break;
}
tablesCache[key] = tables;
tablesCache[key] = payload.frames;
}
this.tables = tablesCache[key];
this.numFrames = this.tables[0].length;
this.table = tablesCache[key];
this.numFrames = this.table.length;
} else if (type === 'reset') {
this.reset(payload.processorOptions);
}
};
this.reset(options.processorOptions);
}
reset(options) {
const phaseRand = options.phaseRand ?? 1;
const phases = this.phases;
for (let i = 0; i < phases.length; i++) {
phases[i] = Math.random() * phaseRand;
}
this.voices = options.voices;
this.normalizer = 1 / Math.sqrt(this.voices);
}
_mirror(x) {
@@ -1104,7 +1175,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
_toBits(amt, min = 2, max = 12) {
const b = max + (min - max) * amt;
return { b, n: Math.round(Math.pow(2, b)) };
return { b, n: fround(Math.pow(2, b)) };
}
_warpPhase(phase, amt, mode) {
@@ -1130,7 +1201,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
return amt < 0.5 ? this._warpPhase(phase, 1 - 2 * amt, 3) : this._warpPhase(phase, 2 * amt - 1, 2);
}
case WarpMode.SYNC: {
const syncRatio = Math.pow(16, amt * amt);
const syncRatio = Math.pow(16, amt ** 2);
return (phase * syncRatio) % 1;
}
case WarpMode.QUANT: {
@@ -1139,8 +1210,8 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
}
case WarpMode.FOLD: {
const K = 7;
const k = 1 + Math.max(1, Math.round(K * amt));
return Math.abs(frac(k * phase) - 0.5) * 2;
const k = 1 + Math.max(1, fround(K * amt));
return Math.abs(ffrac(k * phase) - 0.5) * 2;
}
case WarpMode.PWM: {
const w = clamp(0.5 + 0.49 * (2 * amt - 1), 0, 1);
@@ -1150,12 +1221,12 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
case WarpMode.ORBIT: {
const depth = 0.5 * amt;
const n = 3;
return frac(phase + depth * Math.sin(2 * Math.PI * n * phase));
return frac(phase + depth * Math.sin(TWO_PI * n * phase));
}
case WarpMode.SPIN: {
const depth = 0.5 * amt;
const { n } = this._toBits(amt, 1, 6);
return frac(phase + depth * Math.sin(2 * Math.PI * n * phase));
return frac(phase + depth * Math.sin(TWO_PI * n * phase));
}
case WarpMode.CHAOS: {
const r = 3.7 + 0.3 * amt;
@@ -1166,7 +1237,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
const isPrime = (n) => {
if (n < 2) return false;
if (n % 2 === 0) return n === 2;
for (let d = 3; d * d <= n; d += 2) if (n % d === 0) return false;
for (let d = 3; d ** 2 <= n; d += 2) if (n % d === 0) return false;
return true;
};
let { n } = this._toBits(amt, 3);
@@ -1175,18 +1246,12 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
}
case WarpMode.BINARY: {
let { b } = this._toBits(amt, 3);
b = Math.round(b);
b = fround(b);
const n = 1 << b;
const idx = ffloor(phase * n);
const ridx = bitReverse(idx, b);
return ridx / n;
}
case WarpMode.MODULAR: {
const { n } = this._toBits(amt);
const depth = 0.5 * amt;
const jump = frac(phase * n) / n;
return frac(phase + depth * jump);
}
case WarpMode.BROWNIAN: {
const disp = 0.25 * amt * brownian(64 * phase, 4);
return frac(phase + disp);
@@ -1209,7 +1274,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
case WarpMode.LOGISTIC: {
let x = phase;
const r = 3.6 + 0.4 * amt;
const iters = 1 + Math.round(2 * amt);
const iters = 1 + fround(2 * amt);
for (let i = 0; i < iters; i++) x = r * x * (1 - x);
return clamp(x, 0, 1);
}
@@ -1222,7 +1287,7 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
return (y - y0) / (y1 - y0);
}
case WarpMode.FRACTAL: {
const d = 0.5 * Math.sin(2 * Math.PI * phase) * amt;
const d = 0.5 * Math.sin(TWO_PI * phase) * amt;
return frac(phase + d);
}
case WarpMode.FLIP: {
@@ -1246,72 +1311,63 @@ class WavetableOscillatorProcessor extends AudioWorkletProcessor {
return a + (b - a) * frac;
}
_chooseMip(dphi) {
const approxHarm = clamp(dphi, 1e-6, 64);
let level = 0;
while (level + 1 < (this.tables?.length || 1) && approxHarm < this.tables[level][0].length / 8) {
level++;
}
return level;
}
process(_inputs, outputs, parameters) {
if (currentTime >= parameters.end[0]) {
return false;
}
if (currentTime <= parameters.begin[0]) {
process(_inputs, outputs, params) {
const started = currentTime >= params.begin[0];
const ended = currentTime >= params.end[0];
if (!started || ended) {
return true;
}
const outL = outputs[0][0];
const outR = outputs[0][1] || outputs[0][0];
if (!this.tables) {
outL.fill(0);
if (outR !== outL) outR.set(outL);
return true;
// fast k-rate paths
let freq, detune, freqspread, detuner;
if (params.freqspread.length === 1) {
freqspread = params.freqspread[0];
detuner = getDetuner(this.voices, freqspread);
}
if (params.frequency.length === 1 && params.detune.length === 1) {
freq = params.frequency[0];
detune = params.detune[0];
freq = applySemitoneDetuneToFrequency(freq, detune / 100);
}
let panspread, gainL, gainR;
if (params.panspread.length === 1) {
panspread = this.voices > 1 ? clamp(params.panspread[0], 0, 1) : 0;
gainL = Math.sqrt(0.5 - 0.5 * panspread);
gainR = Math.sqrt(0.5 + 0.5 * panspread);
}
const warpMode = params.warpMode[0];
for (let i = 0; i < outL.length; i++) {
const detune = pv(parameters.detune, i);
const freqspread = pv(parameters.freqspread, i);
const tablePos = clamp(pv(parameters.position, i), 0, 1);
const tablePos = clamp(pv(params.position, i), 0, 1);
const idx = tablePos * (this.numFrames - 1);
const fIdx = idx | 0;
const frac = idx - fIdx;
const warpAmount = clamp(pv(parameters.warp, i), 0, 1);
const warpMode = pv(parameters.warpMode, i);
const voices = pv(parameters.voices, i);
const phaseRand = clamp(pv(parameters.phaserand, i), 0, 1);
const panspread = voices > 1 ? clamp(pv(parameters.panspread, i), 0, 1) : 0;
const gain1 = Math.sqrt(0.5 - 0.5 * panspread);
const gain2 = Math.sqrt(0.5 + 0.5 * panspread);
let f = pv(parameters.frequency, i);
f = applySemitoneDetuneToFrequency(f, detune / 100); // overall detune
const normalizer = 1 / Math.sqrt(voices);
for (let n = 0; n < voices; n++) {
const isOdd = (n & 1) == 1;
let gainL = gain1;
let gainR = gain2;
// invert right and left gain
if (isOdd) {
gainL = gain2;
gainR = gain1;
}
const fVoice = applySemitoneDetuneToFrequency(f, getUnisonDetune(voices, freqspread, n)); // voice detune
const dPhase = fVoice * this.invSR;
const level = this._chooseMip(dPhase);
const table = this.tables[level];
const interpT = idx - fIdx;
const warpAmount = clamp(pv(params.warp, i), 0, 1);
panspread ??= this.voices > 1 ? clamp(pv(params.panspread, i), 0, 1) : 0;
gainL ??= Math.sqrt(0.5 - 0.5 * panspread);
gainR ??= Math.sqrt(0.5 + 0.5 * panspread);
detune ??= pv(params.detune, i);
freqspread ??= pv(params.freqspread, i);
freq ??= applySemitoneDetuneToFrequency(pv(params.frequency, i), detune / 100); // overall detune
detuner ??= getDetuner(this.voices, freqspread);
for (let n = 0; n < this.voices; n++) {
const freqVoice = applyFastDetune(freq, detuner(n)); // voice detune
const dPhase = freqVoice * INVSR;
// warp phase then sample
this.phase[n] = this.phase[n] ?? Math.random() * phaseRand;
const ph = this._warpPhase(this.phase[n], warpAmount, warpMode);
const s0 = this._sampleFrame(table[fIdx], ph);
const s1 = this._sampleFrame(table[Math.min(this.numFrames - 1, fIdx + 1)], ph);
let s = s0 + (s1 - s0) * frac;
if (warpMode === WarpMode.FLIP && this.phase[n] < warpAmount) {
const ph = this._warpPhase(this.phases[n], warpAmount, warpMode);
const s0 = this._sampleFrame(this.table[fIdx], ph);
const s1 = this._sampleFrame(this.table[Math.min(this.numFrames - 1, fIdx + 1)], ph);
let s = lerp(s0, s1, interpT);
if (warpMode === WarpMode.FLIP && this.phases[n] < warpAmount) {
s = -s;
}
outL[i] += s * gainL * normalizer;
outR[i] += s * gainR * normalizer;
this.phase[n] = wrapPhase(this.phase[n] + dPhase);
outL[i] += s * gainL * this.normalizer;
outR[i] += s * gainR * this.normalizer;
this.phases[n] = frac(this.phases[n] + dPhase);
// invert right and left gain
const tmp = gainL;
gainR = gainL;
gainL = tmp;
}
}
return true;
+5 -1
View File
@@ -1,6 +1,10 @@
import { Dough } from './dough.mjs';
const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
const clamp = (num, min, max) => {
if (num < min) return min;
if (num > max) return max;
return num;
};
class DoughProcessor extends AudioWorkletProcessor {
constructor() {
+5 -1
View File
@@ -6,7 +6,11 @@ const PI_DIV_SR = Math.PI / SAMPLE_RATE;
const ISR = 1 / SAMPLE_RATE;
let gainCurveFunc = (val) => Math.pow(val, 2);
const clamp = (num, min, max) => Math.min(Math.max(num, min), max);
const clamp = (num, min, max) => {
if (num < min) return min;
if (num > max) return max;
return num;
};
function applyGainCurve(val) {
return gainCurveFunc(val);
+292 -48
View File
@@ -7219,6 +7219,112 @@ exports[`runs examples > example "panchor" example index 0 1`] = `
]
`;
exports[`runs examples > example "partials" example index 0 1`] = `
[
"[ 0/1 → 1/16 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 1/16 → 1/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 1/8 → 3/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 3/16 → 1/4 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 1/4 → 5/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 5/16 → 3/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 3/8 → 7/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 7/16 → 1/2 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 1/2 → 9/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 9/16 → 5/8 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 5/8 → 11/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 11/16 → 3/4 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 3/4 → 13/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 13/16 → 7/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 7/8 → 15/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 15/16 → 1/1 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 1/1 → 17/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 17/16 → 9/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 9/8 → 19/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 19/16 → 5/4 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 5/4 → 21/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 21/16 → 11/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 11/8 → 23/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 23/16 → 3/2 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 3/2 → 25/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 25/16 → 13/8 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 13/8 → 27/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 27/16 → 7/4 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 7/4 → 29/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 29/16 → 15/8 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 15/8 → 31/16 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 31/16 → 2/1 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 2/1 → 33/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 33/16 → 17/8 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 17/8 → 35/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 35/16 → 9/4 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 9/4 → 37/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 37/16 → 19/8 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 19/8 → 39/16 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 39/16 → 5/2 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 5/2 → 41/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 41/16 → 21/8 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 21/8 → 43/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 43/16 → 11/4 | s:user note:E4 partials:[1 0 1 0 0 1] ]",
"[ 11/4 → 45/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 45/16 → 23/8 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 23/8 → 47/16 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 47/16 → 3/1 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 3/1 → 49/16 | s:user note:B3 partials:[1 0 1 0 0 1] ]",
"[ 49/16 → 25/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 25/8 → 51/16 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 51/16 → 13/4 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 13/4 → 53/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 53/16 → 27/8 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
"[ 27/8 → 55/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 55/16 → 7/2 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 7/2 → 57/16 | s:user note:D4 partials:[1 0 1 0 0 1] ]",
"[ 57/16 → 29/8 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 29/8 → 59/16 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 59/16 → 15/4 | s:user note:A4 partials:[1 0 1 0 0 1] ]",
"[ 15/4 → 61/16 | s:user note:G#4 partials:[1 0 1 0 0 1] ]",
"[ 61/16 → 31/8 | s:user note:A3 partials:[1 0 1 0 0 1] ]",
"[ 31/8 → 63/16 | s:user note:F#4 partials:[1 0 1 0 0 1] ]",
"[ 63/16 → 4/1 | s:user note:C#4 partials:[1 0 1 0 0 1] ]",
]
`;
exports[`runs examples > example "partials" example index 1 1`] = `
[
"[ 0/1 → 1/8 | s:saw note:G#3 partials:[1] ]",
"[ 1/8 → 1/4 | s:saw note:A#4 partials:[1 0 1 1 0 0 0 0] ]",
"[ 1/4 → 3/8 | s:saw note:D#4 partials:[1 0 1 1 1 1 1] ]",
"[ 3/8 → 1/2 | s:saw note:D#4 partials:[1 1 0 0 1 1 1] ]",
"[ 1/2 → 5/8 | s:saw note:C#4 partials:[1 0 0 0 0 1 1] ]",
"[ 5/8 → 3/4 | s:saw note:A#3 partials:[1 0 0 0 1 1] ]",
"[ 3/4 → 7/8 | s:saw note:B3 partials:[1 1 0 0 1 1] ]",
"[ 7/8 → 1/1 | s:saw note:D#4 partials:[1 1 0 0 1 1 0] ]",
"[ 1/1 → 9/8 | s:saw note:F#4 partials:[1 0 0 0 0 1 1 0] ]",
"[ 9/8 → 5/4 | s:saw note:A#4 partials:[1 0 1 0 1 1 0 1] ]",
"[ 5/4 → 11/8 | s:saw note:A#4 partials:[1 0 1 1 1 0 1 1] ]",
"[ 11/8 → 3/2 | s:saw note:B3 partials:[1 0 1 1 1 1] ]",
"[ 3/2 → 13/8 | s:saw note:G#4 partials:[1 0 0 1 1 1 0 0] ]",
"[ 13/8 → 7/4 | s:saw note:E4 partials:[1 0 0 0 0 0 0 0] ]",
"[ 7/4 → 15/8 | s:saw note:B3 partials:[1 1 0 1 0 1] ]",
"[ 15/8 → 2/1 | s:saw note:G#4 partials:[1 0 0 1 1 0 0 1] ]",
"[ 2/1 → 17/8 | s:saw note:D#5 partials:[1 1 1 1 0 1 1 0] ]",
"[ 17/8 → 9/4 | s:saw note:C#5 partials:[1 1 1 0 1 0 0 0] ]",
"[ 9/4 → 19/8 | s:saw note:D#4 partials:[1 0 1 1 0 0 1] ]",
"[ 19/8 → 5/2 | s:saw note:C#5 partials:[1 1 0 1 0 1 1 1] ]",
"[ 5/2 → 21/8 | s:saw note:E4 partials:[1 1 1 0 1 1 0] ]",
"[ 21/8 → 11/4 | s:saw note:A#3 partials:[1 0 1 0 1 0] ]",
"[ 11/4 → 23/8 | s:saw note:G#4 partials:[1 0 1 0 0 0 1 1] ]",
"[ 23/8 → 3/1 | s:saw note:G#3 partials:[1 0 1] ]",
"[ 3/1 → 25/8 | s:saw note:B3 partials:[1 1 1 0 0 0] ]",
"[ 25/8 → 13/4 | s:saw note:D#4 partials:[1 0 1 1 0 0 0] ]",
"[ 13/4 → 27/8 | s:saw note:D#5 partials:[1 1 1 1 1 1 1 1] ]",
"[ 27/8 → 7/2 | s:saw note:D#4 partials:[1 1 0 1 0 0 1] ]",
"[ 7/2 → 29/8 | s:saw note:D#4 partials:[1 1 0 1 0 0 1] ]",
"[ 29/8 → 15/4 | s:saw note:D#5 partials:[1 1 1 1 0 0 0 1] ]",
"[ 15/4 → 31/8 | s:saw note:B4 partials:[1 1 0 1 0 0 0 0] ]",
"[ 31/8 → 4/1 | s:saw note:A#4 partials:[1 0 1 1 1 1 0 1] ]",
]
`;
exports[`runs examples > example "pattack" example index 0 1`] = `
[
"[ 0/1 → 1/2 | note:c pattack:0 ]",
@@ -7472,6 +7578,75 @@ exports[`runs examples > example "phasersweep" example index 0 1`] = `
]
`;
exports[`runs examples > example "phases" example index 0 1`] = `
[
"[ 0/1 → 1/8 | s:saw note:G#1 partials:{partials:1} ]",
"[ 0/1 → 1/8 | s:saw note:G#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 1/8 → 1/4 | s:saw note:A#2 partials:{partials:1} ]",
"[ 1/8 → 1/4 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 1/4 → 3/8 | s:saw note:D#2 partials:{partials:1} ]",
"[ 1/4 → 3/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 3/8 → 1/2 | s:saw note:D#2 partials:{partials:1} ]",
"[ 3/8 → 1/2 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 1/2 → 5/8 | s:saw note:C#2 partials:{partials:1} ]",
"[ 1/2 → 5/8 | s:saw note:C#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 5/8 → 3/4 | s:saw note:A#1 partials:{partials:1} ]",
"[ 5/8 → 3/4 | s:saw note:A#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 3/4 → 7/8 | s:saw note:B1 partials:{partials:1} ]",
"[ 3/4 → 7/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 7/8 → 1/1 | s:saw note:D#2 partials:{partials:1} ]",
"[ 7/8 → 1/1 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 1/1 → 9/8 | s:saw note:F#2 partials:{partials:1} ]",
"[ 1/1 → 9/8 | s:saw note:F#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 9/8 → 5/4 | s:saw note:A#2 partials:{partials:1} ]",
"[ 9/8 → 5/4 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 5/4 → 11/8 | s:saw note:A#2 partials:{partials:1} ]",
"[ 5/4 → 11/8 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 11/8 → 3/2 | s:saw note:B1 partials:{partials:1} ]",
"[ 11/8 → 3/2 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 3/2 → 13/8 | s:saw note:G#2 partials:{partials:1} ]",
"[ 3/2 → 13/8 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 13/8 → 7/4 | s:saw note:E2 partials:{partials:1} ]",
"[ 13/8 → 7/4 | s:saw note:E2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 7/4 → 15/8 | s:saw note:B1 partials:{partials:1} ]",
"[ 7/4 → 15/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 15/8 → 2/1 | s:saw note:G#2 partials:{partials:1} ]",
"[ 15/8 → 2/1 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 2/1 → 17/8 | s:saw note:D#3 partials:{partials:1} ]",
"[ 2/1 → 17/8 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 17/8 → 9/4 | s:saw note:C#3 partials:{partials:1} ]",
"[ 17/8 → 9/4 | s:saw note:C#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 9/4 → 19/8 | s:saw note:D#2 partials:{partials:1} ]",
"[ 9/4 → 19/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 19/8 → 5/2 | s:saw note:C#3 partials:{partials:1} ]",
"[ 19/8 → 5/2 | s:saw note:C#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 5/2 → 21/8 | s:saw note:E2 partials:{partials:1} ]",
"[ 5/2 → 21/8 | s:saw note:E2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 21/8 → 11/4 | s:saw note:A#1 partials:{partials:1} ]",
"[ 21/8 → 11/4 | s:saw note:A#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 11/4 → 23/8 | s:saw note:G#2 partials:{partials:1} ]",
"[ 11/4 → 23/8 | s:saw note:G#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 23/8 → 3/1 | s:saw note:G#1 partials:{partials:1} ]",
"[ 23/8 → 3/1 | s:saw note:G#1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 3/1 → 25/8 | s:saw note:B1 partials:{partials:1} ]",
"[ 3/1 → 25/8 | s:saw note:B1 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 25/8 → 13/4 | s:saw note:D#2 partials:{partials:1} ]",
"[ 25/8 → 13/4 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 13/4 → 27/8 | s:saw note:D#3 partials:{partials:1} ]",
"[ 13/4 → 27/8 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 27/8 → 7/2 | s:saw note:D#2 partials:{partials:1} ]",
"[ 27/8 → 7/2 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 7/2 → 29/8 | s:saw note:D#2 partials:{partials:1} ]",
"[ 7/2 → 29/8 | s:saw note:D#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 29/8 → 15/4 | s:saw note:D#3 partials:{partials:1} ]",
"[ 29/8 → 15/4 | s:saw note:D#3 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 15/4 → 31/8 | s:saw note:B2 partials:{partials:1} ]",
"[ 15/4 → 31/8 | s:saw note:B2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
"[ 31/8 → 4/1 | s:saw note:A#2 partials:{partials:1} ]",
"[ 31/8 → 4/1 | s:saw note:A#2 partials:{partials:1} phases:[0.5 0.5 0.5] ]",
]
`;
exports[`runs examples > example "pianoroll" example index 0 1`] = `
[
"[ 0/1 → 1/8 | note:c2 s:sawtooth lpenv:4 cutoff:300 ]",
@@ -8193,6 +8368,75 @@ exports[`runs examples > example "rand" example index 0 1`] = `
]
`;
exports[`runs examples > example "randL" example index 0 1`] = `
[
"[ 0/1 → 1/16 | s:saw note:F1 partials:[0 0 0 0 0 0 0 0] ]",
"[ 1/16 → 1/8 | s:saw note:Bb2 partials:[0.8426077850162983 0.0886186733841896 0.9342893119901419 0.06848422810435295 0.6248505394905806 0.5372848063707352 0.8283301629126072 0.7969411127269268] ]",
"[ 1/8 → 3/16 | s:saw note:G2 partials:[0.6852155700325966 0.17723728902637959 0.8521428182721138 0.5022399611771107 0.9780306946486235 0.3186125475913286 0.1851645242422819 0.8495976086705923] ]",
"[ 3/16 → 1/4 | s:saw note:Ab1 partials:[0.20066574029624462 0.17195586115121841 0.2159541044384241 0.17005567252635956 0.6841662060469389 0.07906394638121128 0.004815371707081795 0.027107616886496544] ]",
"[ 1/4 → 5/16 | s:saw note:C2 partials:[0.36975969187915325 0.18273563869297504 0.012781793251633644 0.5423613861203194 0.12467948533594608 0.7188410349190235 0.856887087225914 0.8818203993141651] ]",
"[ 5/16 → 3/8 | s:saw note:Eb2 partials:[0.5675661638379097 0.15932588279247284 0.31376867927610874 0.32359412126243114 0.3281281068921089 0.011714376509189606 0.4433113746345043 0.68459103256464] ]",
"[ 3/8 → 7/16 | s:saw note:C2 partials:[0.40139251574873924 0.15799915604293346 0.9604704882949591 0.03873417526483536 0.4157217647880316 0.27756719291210175 0.8800551909953356 0.5692523363977671] ]",
"[ 7/16 → 1/2 | s:saw note:Bb1 partials:[0.3015887886285782 0.22311350144445896 0.47645803540945053 0.001545613631606102 0.53841289319098 0.330710094422102 0.2747743520885706 0.9471044968813658] ]",
"[ 1/2 → 9/16 | s:saw note:Bb1 partials:[0.2604806162416935 0.3654713351279497 0.9900747090578079 0.22572625242173672 0.9328999016433954 0.5273839123547077 0.7047769222408533 0.7311522178351879] ]",
"[ 9/16 → 5/8 | s:saw note:G1 partials:[0.16399178467690945 0.9559339117258787 0.21830322034657001 0.4903192054480314 0.2504696864634752 0.7302105724811554 0.6580934692174196 0.9855979979038239] ]",
"[ 5/8 → 11/16 | s:saw note:G1 partials:[0.1356358677148819 0.5403102282434702 0.07321739941835403 0.9646544624119997 0.7707359045743942 0.46888123638927937 0.9489036612212658 0.366748945787549] ]",
"[ 11/16 → 3/4 | s:saw note:C2 partials:[0.408811716362834 0.9613851886242628 0.7683626655489206 0.5862949229776859 0.9568102769553661 0.7154356613755226 0.6283384170383215 0.2193678840994835] ]",
"[ 3/4 → 13/16 | s:saw note:Ab1 partials:[0.19582648016512394 0.0024610888212919235 0.08272589556872845 0.09592138417065144 0.9678201265633106 0.3249557167291641 0.9463537875562906 0.20766610652208328] ]",
"[ 13/16 → 7/8 | s:saw note:Ab2 partials:[0.7516226731240749 0.15610851533710957 0.9039078876376152 0.8602268267422915 0.928601048886776 0.4479671400040388 0.5080656576901674 0.562442347407341] ]",
"[ 7/8 → 15/16 | s:saw note:C2 partials:[0.3976310808211565 0.13476407527923584 0.963376859202981 0.6579397786408663 0.5203975513577461 0.865439185872674 0.5583905670791864 0.2736878804862499] ]",
"[ 15/16 → 1/1 | s:saw note:G2 partials:[0.7029578909277916 0.6351367030292749 0.26143294386565685 0.6411824338138103 0.5676082745194435 0.4803342465311289 0.5140306428074837 0.9477859679609537] ]",
"[ 1/1 → 17/16 | s:saw note:Eb2 partials:[0.5195421651005745 0.9349692352116108 0.1718774326145649 0.9601866770535707 0.2802200373262167 0.8732441551983356 0.01810968853533268 0.42737805284559727] ]",
"[ 17/16 → 9/8 | s:saw note:Eb2 partials:[0.5486328881233931 0.7088070474565029 0.07877279818058014 0.9422610364854336 0.7696988433599472 0.8289324026554823 0.5925844628363848 0.3920764606446028] ]",
"[ 9/8 → 19/16 | s:saw note:G2 partials:[0.6724895145744085 0.21410975232720375 0.5229047331959009 0.20957534946501255 0.7402758821845055 0.2681974694132805 0.4059371296316385 0.9422509074211121] ]",
"[ 19/16 → 5/4 | s:saw note:F1 partials:[0.08174665085971355 0.2762963864952326 0.5428560189902782 0.29452037811279297 0.17946280725300312 0.366960596293211 0.26327736489474773 0.5002023074775934] ]",
"[ 5/4 → 21/16 | s:saw note:G2 partials:[0.7287282031029463 0.9341024849563837 0.5098182689398527 0.5608645845204592 0.6812942810356617 0.5015129633247852 0.4602120481431484 0.927369873970747] ]",
"[ 21/16 → 11/8 | s:saw note:F1 partials:[0.08104278706014156 0.5200720727443695 0.5363391060382128 0.9824271816760302 0.10652091167867184 0.23473932035267353 0.7656102329492569 0.4850195776671171] ]",
"[ 11/8 → 23/16 | s:saw note:Ab1 partials:[0.18280375190079212 0.40527783520519733 0.30504362285137177 0.7622128054499626 0.842598931863904 0.053796686232089996 0.5124214049428701 0.9178454764187336] ]",
"[ 23/16 → 3/2 | s:saw note:Eb2 partials:[0.5081270858645439 0.1421387754380703 0.8852288406342268 0.9066353775560856 0.7700740322470665 0.35437702015042305 0.20032598450779915 0.963155921548605] ]",
"[ 3/2 → 25/16 | s:saw note:F2 partials:[0.6084080748260021 0.4424846563488245 0.755185678601265 0.04328125901520252 0.04244415462017059 0.3994515985250473 0.787989066913724 0.3180440980941057] ]",
"[ 25/16 → 13/8 | s:saw note:Ab1 partials:[0.17092766426503658 0.7808954659849405 0.8234915658831596 0.8643151633441448 0.9781719036400318 0.5102015696465969 0.018259897828102112 0.25844234600663185] ]",
"[ 13/8 → 27/16 | s:saw note:Db2 partials:[0.49675471149384975 0.2965749856084585 0.09848833456635475 0.19172007404267788 0.22677889838814735 0.9841996673494577 0.11156083643436432 0.6079028844833374] ]",
"[ 27/16 → 7/4 | s:saw note:Bb1 partials:[0.29589061066508293 0.13011129200458527 0.8021425940096378 0.38040103763341904 0.33274981752038 0.29745868407189846 0.9898250997066498 0.743482418358326] ]",
"[ 7/4 → 29/16 | s:saw note:Ab1 partials:[0.20473789609968662 0.7480021081864834 0.30757393687963486 0.5827204789966345 0.22094514779746532 0.6370698790997267 0.16573002003133297 0.0638319905847311] ]",
"[ 29/16 → 15/8 | s:saw note:Db2 partials:[0.4695742893964052 0.6690364442765713 0.6216684486716986 0.41342394426465034 0.9508822970092297 0.8403679896146059 0.91759910620749 0.6591395419090986] ]",
"[ 15/8 → 31/16 | s:saw note:F2 partials:[0.5945571791380644 0.3962489552795887 0.563431927934289 0.4742323160171509 0.4185752831399441 0.9703940469771624 0.5282467231154442 0.6896266285330057] ]",
"[ 31/16 → 2/1 | s:saw note:Bb2 partials:[0.8672592639923096 0.3438429981470108 0.9795673936605453 0.46547594852745533 0.9770395755767822 0.36851615831255913 0.7725539114326239 0.876962523907423] ]",
"[ 2/1 → 33/16 | s:saw note:C3 partials:[0.9595271199941635 0.5427457969635725 0.45864437520504 0.8057199101895094 0.18388565629720688 0.17221237532794476 0.8838487900793552 0.4976818822324276] ]",
"[ 33/16 → 17/8 | s:saw note:Bb1 partials:[0.3324784208089113 0.6005446836352348 0.1564352661371231 0.765217661857605 0.12899602390825748 0.20880493707954884 0.9156261626631021 0.5550615340471268] ]",
"[ 17/8 → 35/16 | s:saw note:Bb2 partials:[0.9033902939409018 0.22919894196093082 0.8388008493930101 0.9108077362179756 0.32246968522667885 0.16122018359601498 0.31932324543595314 0.18524732999503613] ]",
"[ 35/16 → 9/4 | s:saw note:F1 partials:[0.037000780925154686 0.30360451713204384 0.7516817897558212 0.17065968923270702 0.24669718369841576 0.978821286931634 0.9620356522500515 0.12417634017765522] ]",
"[ 9/4 → 37/16 | s:saw note:C2 partials:[0.34548251144587994 0.30419893004000187 0.10205957666039467 0.9906709585338831 0.3156223688274622 0.3745057098567486 0.7668170686811209 0.9379972033202648] ]",
"[ 37/16 → 19/8 | s:saw note:F2 partials:[0.6649543270468712 0.41613837145268917 0.9078915324062109 0.2232209537178278 0.2918607946485281 0.4931973237544298 0.7035325299948454 0.29280414804816246] ]",
"[ 19/8 → 39/16 | s:saw note:Bb2 partials:[0.8365066405385733 0.5369812995195389 0.2263860274106264 0.21759207546710968 0.2172116208821535 0.09454222768545151 0.8075542915612459 0.9017798062413931] ]",
"[ 39/16 → 5/2 | s:saw note:G1 partials:[0.14231421053409576 0.6801821701228619 0.7958894111216068 0.9494249671697617 0.179213372990489 0.22531690262258053 0.7458387855440378 0.3595987129956484] ]",
"[ 5/2 → 41/16 | s:saw note:Db2 partials:[0.45861607417464256 0.6807645913213491 0.07009582966566086 0.1450389064848423 0.2579921595752239 0.612881500273943 0.5503941811621189 0.7027011960744858] ]",
"[ 41/16 → 21/8 | s:saw note:F2 partials:[0.6068673655390739 0.8489279896020889 0.027898555621504784 0.90520747192204 0.18605150654911995 0.30939464271068573 0.16843407973647118 0.5127317048609257] ]",
"[ 21/8 → 43/16 | s:saw note:G1 partials:[0.16019348427653313 0.47758268006145954 0.9749126061797142 0.8025561925023794 0.3600110989063978 0.324309878051281 0.5655391272157431 0.13364790193736553] ]",
"[ 43/16 → 11/4 | s:saw note:Eb2 partials:[0.538035349920392 0.4103843830525875 0.6443832442164421 0.7532152868807316 0.32128027081489563 0.29064710810780525 0.5972099266946316 0.8252892810851336] ]",
"[ 11/4 → 45/16 | s:saw note:F2 partials:[0.6332327704876661 0.7342763151973486 0.16935866326093674 0.4754706546664238 0.528122790157795 0.21934260986745358 0.7476693484932184 0.2995396424084902] ]",
"[ 45/16 → 23/8 | s:saw note:Bb2 partials:[0.8912940509617329 0.5256196465343237 0.25639201514422894 0.46860250271856785 0.08611978217959404 0.6175916157662868 0.990638293325901 0.11189854890108109] ]",
"[ 23/8 → 47/16 | s:saw note:F1 partials:[0.01625417172908783 0.28409438766539097 0.3075305689126253 0.40343056432902813 0.5556836389005184 0.6926821582019329 0.5635769125074148 0.017873913049697876] ]",
"[ 47/16 → 3/1 | s:saw note:Bb1 partials:[0.2830589488148689 0.3613663297146559 0.6216250211000443 0.6083405166864395 0.27202711440622807 0.771099541336298 0.3156145606189966 0.736228458583355] ]",
"[ 3/1 → 49/16 | s:saw note:Ab1 partials:[0.21728911064565182 0.7605195846408606 0.11240843310952187 0.4372697602957487 0.15630115941166878 0.1653979979455471 0.5303416550159454 0.07218753732740879] ]",
"[ 49/16 → 25/8 | s:saw note:F1 partials:[0.012518879026174545 0.6565517522394657 0.783835593611002 0.2481316588819027 0.27786846831440926 0.6153149046003819 0.39914070069789886 0.2175555843859911] ]",
"[ 25/8 → 51/16 | s:saw note:C2 partials:[0.34324387833476067 0.14098095521330833 0.012934491038322449 0.827436288818717 0.5283997394144535 0.8942463714629412 0.4924008697271347 0.9298017006367445] ]",
"[ 51/16 → 13/4 | s:saw note:Bb2 partials:[0.9057559575885534 0.5731389932334423 0.06561482697725296 0.02156665176153183 0.4685337021946907 0.000788738951086998 0.6995994579046965 0.9893404543399811] ]",
"[ 13/4 → 53/16 | s:saw note:C3 partials:[0.9923650715500116 0.7797339502722025 0.1992435697466135 0.9005183521658182 0.718992218375206 0.23745290748775005 0.28872333094477654 0.35448253713548183] ]",
"[ 53/16 → 27/8 | s:saw note:Bb1 partials:[0.3235324025154114 0.5165992900729179 0.6231792941689491 0.8034896682947874 0.6663950439542532 0.4207208137959242 0.9748435858637094 0.27676148526370525] ]",
"[ 27/8 → 55/16 | s:saw note:C2 partials:[0.40869180113077164 0.4018078800290823 0.34696186147630215 0.9572948440909386 0.400035472586751 0.3531211093068123 0.7240961641073227 0.8125612027943134] ]",
"[ 55/16 → 7/2 | s:saw note:Ab2 partials:[0.775677714496851 0.0502743236720562 0.3246541116386652 0.503994770348072 0.8252716399729252 0.89872563816607 0.060319963842630386 0.25497629307210445] ]",
"[ 7/2 → 57/16 | s:saw note:C2 partials:[0.40994881466031075 0.6455810181796551 0.35704658553004265 0.2732649203389883 0.31587288342416286 0.23243548162281513 0.22569947130978107 0.17241661623120308] ]",
"[ 57/16 → 29/8 | s:saw note:Ab2 partials:[0.8133465722203255 0.8327706772834063 0.32914630882442 0.23131784796714783 0.7526696771383286 0.1361286472529173 0.11441296897828579 0.36366880126297474] ]",
"[ 29/8 → 59/16 | s:saw note:C3 partials:[0.9391485787928104 0.3380728308111429 0.7723016366362572 0.998674126341939 0.7193406894803047 0.6963680125772953 0.9260678570717573 0.7829763628542423] ]",
"[ 59/16 → 15/4 | s:saw note:C3 partials:[0.9731374885886908 0.0494034755975008 0.990720022469759 0.9819309785962105 0.22877203114330769 0.7265191469341516 0.4922411348670721 0.7549834884703159] ]",
"[ 15/4 → 61/16 | s:saw note:Ab2 partials:[0.8121673222631216 0.25548945367336273 0.5759696904569864 0.6668333616107702 0.9233786761760712 0.11143362522125244 0.9734930321574211 0.369325939565897] ]",
"[ 61/16 → 31/8 | s:saw note:G1 partials:[0.1008925698697567 0.7558664139360189 0.1523460578173399 0.6523381881415844 0.9690635204315186 0.7343240566551685 0.9544064309448004 0.9150135722011328] ]",
"[ 31/8 → 63/16 | s:saw note:G2 partials:[0.7361665386706591 0.7657648548483849 0.21474426984786987 0.8228576295077801 0.5647660344839096 0.08148551359772682 0.9714624118059874 0.13992334716022015] ]",
"[ 63/16 → 4/1 | s:saw note:Bb1 partials:[0.3056422360241413 0.8881660811603069 0.7683485243469477 0.08641545102000237 0.5427133180201054 0.20803124643862247 0.5347504671663046 0.5977730695158243] ]",
]
`;
exports[`runs examples > example "range" example index 0 1`] = `
[
"[ 0/1 → 1/8 | s:hh cutoff:2250 ]",
@@ -12240,54 +12484,54 @@ exports[`runs examples > example "wchooseCycles" example index 0 1`] = `
exports[`runs examples > example "wchooseCycles" example index 1 1`] = `
[
"[ 0/1 → 1/12 | s:bd ]",
"[ 1/12 → 1/6 | s:bd ]",
"[ 1/6 → 1/4 | s:bd ]",
"[ 1/4 → 1/3 | s:bd ]",
"[ 1/3 → 5/12 | s:bd ]",
"[ 5/12 → 1/2 | s:bd ]",
"[ 1/2 → 7/12 | s:sd ]",
"[ 7/12 → 2/3 | s:sd ]",
"[ 2/3 → 3/4 | s:sd ]",
"[ 3/4 → 5/6 | s:bd ]",
"[ 5/6 → 11/12 | s:bd ]",
"[ 11/12 → 1/1 | s:bd ]",
"[ 1/1 → 13/12 | s:bd ]",
"[ 13/12 → 7/6 | s:bd ]",
"[ 7/6 → 5/4 | s:bd ]",
"[ 5/4 → 4/3 | s:bd ]",
"[ 4/3 → 17/12 | s:bd ]",
"[ 17/12 → 3/2 | s:bd ]",
"[ 3/2 → 19/12 | s:hh ]",
"[ 19/12 → 5/3 | s:hh ]",
"[ 5/3 → 7/4 | s:hh ]",
"[ 7/4 → 11/6 | s:bd ]",
"[ 11/6 → 23/12 | s:bd ]",
"[ 23/12 → 2/1 | s:bd ]",
"[ 2/1 → 25/12 | s:hh ]",
"[ 25/12 → 13/6 | s:hh ]",
"[ 13/6 → 9/4 | s:hh ]",
"[ 9/4 → 7/3 | s:hh ]",
"[ 7/3 → 29/12 | s:hh ]",
"[ 29/12 → 5/2 | s:hh ]",
"[ 5/2 → 31/12 | s:bd ]",
"[ 31/12 → 8/3 | s:bd ]",
"[ 8/3 → 11/4 | s:bd ]",
"[ 11/4 → 17/6 | s:bd ]",
"[ 17/6 → 35/12 | s:bd ]",
"[ 35/12 → 3/1 | s:bd ]",
"[ 3/1 → 37/12 | s:bd ]",
"[ 37/12 → 19/6 | s:bd ]",
"[ 19/6 → 13/4 | s:bd ]",
"[ 13/4 → 10/3 | s:sd ]",
"[ 10/3 → 41/12 | s:sd ]",
"[ 41/12 → 7/2 | s:sd ]",
"[ 7/2 → 43/12 | s:hh ]",
"[ 43/12 → 11/3 | s:hh ]",
"[ 11/3 → 15/4 | s:hh ]",
"[ 15/4 → 23/6 | s:bd ]",
"[ 23/6 → 47/12 | s:bd ]",
"[ 47/12 → 4/1 | s:bd ]",
"[ 0/1 → 1/12 | note:c ]",
"[ 1/12 → 1/6 | note:c ]",
"[ 1/6 → 1/4 | note:c ]",
"[ 1/4 → 1/3 | note:c ]",
"[ 1/3 → 5/12 | note:c ]",
"[ 5/12 → 1/2 | note:c ]",
"[ 1/2 → 7/12 | note:f ]",
"[ 7/12 → 2/3 | note:f ]",
"[ 2/3 → 3/4 | note:f ]",
"[ 3/4 → 5/6 | note:c ]",
"[ 5/6 → 11/12 | note:c ]",
"[ 11/12 → 1/1 | note:c ]",
"[ 1/1 → 13/12 | note:c ]",
"[ 13/12 → 7/6 | note:c ]",
"[ 7/6 → 5/4 | note:c ]",
"[ 5/4 → 4/3 | note:c ]",
"[ 4/3 → 17/12 | note:c ]",
"[ 17/12 → 3/2 | note:c ]",
"[ 3/2 → 19/12 | note:a ]",
"[ 19/12 → 5/3 | note:a ]",
"[ 5/3 → 7/4 | note:a ]",
"[ 7/4 → 11/6 | note:c ]",
"[ 11/6 → 23/12 | note:c ]",
"[ 23/12 → 2/1 | note:c ]",
"[ 2/1 → 25/12 | note:a ]",
"[ 25/12 → 13/6 | note:a ]",
"[ 13/6 → 9/4 | note:a ]",
"[ 9/4 → 7/3 | note:a ]",
"[ 7/3 → 29/12 | note:a ]",
"[ 29/12 → 5/2 | note:a ]",
"[ 5/2 → 31/12 | note:c ]",
"[ 31/12 → 8/3 | note:c ]",
"[ 8/3 → 11/4 | note:c ]",
"[ 11/4 → 17/6 | note:c ]",
"[ 17/6 → 35/12 | note:c ]",
"[ 35/12 → 3/1 | note:c ]",
"[ 3/1 → 37/12 | note:c ]",
"[ 37/12 → 19/6 | note:c ]",
"[ 19/6 → 13/4 | note:c ]",
"[ 13/4 → 10/3 | note:f ]",
"[ 10/3 → 41/12 | note:f ]",
"[ 41/12 → 7/2 | note:f ]",
"[ 7/2 → 43/12 | note:a ]",
"[ 43/12 → 11/3 | note:a ]",
"[ 11/3 → 15/4 | note:a ]",
"[ 15/4 → 23/6 | note:c ]",
"[ 23/6 → 47/12 | note:c ]",
"[ 47/12 → 4/1 | note:c ]",
]
`;
+73 -7
View File
@@ -48,28 +48,94 @@ You can also use the `crackle` type to play some subtle noise crackles. You can
### Additive Synthesis
To tame the harsh sound of the basic waveforms, we can set the `n` control to limit the overtones of the waveform:
Periodic waveforms are composed of several [harmonics](https://en.wikipedia.org/wiki/Harmonic) above a fundamental frequency, lying at integer multiples. These overtones combine to give a sound its unique timbral quality.
For the basic waveforms, we offer you control over these harmonics with the `partials` and `phases` functions.
#### Partials
`partials` refers to the magnitude of each harmonic relative to the fundamental frequency. They can thus be used to spectrally filter these waveforms and tame some of their harshness:
<MiniRepl
client:idle
tune={`note("c2 <eb2 <g2 g1>>".fast(2))
.sound("sawtooth")
.n("<32 16 8 4>")
.partials([1, 1, "<1 0>", "<1 0>", "<1 0>", "<1 0>", "<1 0>"])
._scope()`}
/>
When the `n` control is used on a basic waveform, it defines the number of harmonic partials the sound is getting.
You can also set `n` directly in mini notation with `sound`:
`partials` can also be used to construct _new_ waveforms not present in our basic set with the 'user' sound source:
<MiniRepl
client:idle
tune={`note("c2 <eb2 <g2 g1>>".fast(2))
.sound("sawtooth:<32 16 8 4>")
.sound("user")
.partials([1, 0, 0.3, 0, 0.1, 0, 0, 0.3])
._scope()`}
/>
Note for tidal users: `n` in tidal is synonymous to `note` for synths only.
In strudel, this is not the case, where `n` will always change timbre, be it though different samples or different waveforms.
We may algorithmically construct lists of magnitudes with Javascript code like:
<MiniRepl
client:idle
tune={`const numHarmonics = 22;
note("c2 <eb2 <g2 g1>>".fast(2))
.sound("saw")
.partials(new Array(numHarmonics).fill(1))
._scope()`}
/>
which acts as a spectral filter. Or:
<MiniRepl
client:idle
tune={`note("c2 <eb2 <g2 g1>>").fast(2)
.sound("user")
.partials(new Array(50).fill(0)
.map((_, idx) => ((-1) ** (idx + 1)) / (idx + 1))
)
._scope()`}
/>
which recovers a familiar waveform.
`partials` is also compatible with pattern functions designed to produce lists, like `randL` or `binaryL`:
<MiniRepl
client:idle
tune={`note("c2 <eb2 <g2 g1>>").fast(2)
.sound("user")
.partials(randL(10))
._scope()`}
/>
and with lists _of_ patterns:
<MiniRepl
client:idle
tune={`note("c2 <eb2 <g2 g1>>".fast(4))
.sound("user")
.partials([1, 0, "0 1", "0 1 0.3", rand])
._scope()`}
/>
Note that the first value in the `partials` array controls the magnitude of the fundamental harmonic rather than the DC offset, which is fixed at 0.
#### Phases
Earlier, we mentioned that periodic waveforms can be broken into a set of harmonics above a fundamental frequency. Each harmonic has two defining properties: its magnitude (how loud it is) and its phase, which determines where in its cycle that sine wave starts when the waveform is built.
These phases too can be declared in Strudel and can give your sounds interesting depth.
<MiniRepl
client:idle
tune={`s("saw").seg(16).n(irand(12)).scale("F1:minor")
.penv(48).panchor(0).pdec(0.05)
.delay(0.25).room(0.25)
.compressor(-20).vib(0.3)
.partials(randL(200))
.phases(randL(200))`}
/>
## Vibrato
@@ -126,7 +126,7 @@ export function SoundsTab() {
try {
// Pre-load the sample by calling onTrigger with a future time
// This triggers the loading but schedules playback for later
const time = ctx.currentTime + 0.5; // Give 500ms for loading
const time = ctx.currentTime + 0.05;
const ref = await onTrigger(time, params, onended);
trigRef.current = ref;
if (ref?.node) {