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tweaking to make it sound good

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This commit is contained in:
Jade Rowland 2023-11-05 15:40:02 -05:00
parent b3f8df1783
commit a9efda3bc3
2 changed files with 27 additions and 53 deletions
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78
packages/superdough/phaser.mjs
View File

@ -1,14 +1,5 @@
// credits to webdirt: https://github.com/dktr0/WebDirt/blob/41342e81d6ad694a2310d491fef7b7e8b0929efe/js-src/Graph.js#L597 const createFilter = (ctx, cutoff, Q) => {
export var vowelFormant = { const lowpassFilter = ctx.createBiquadFilter();
0: { freqs: [660, 1120, 2750, 3000, 3350], gains: [1, 0.5012, 0.0708, 0.0631, 0.0126], qs: [80, 90, 120, 130, 140] },
1: { freqs: [440, 1800, 2700, 3000, 3300], gains: [1, 0.1995, 0.1259, 0.1, 0.1], qs: [70, 80, 100, 120, 120] },
2: { freqs: [270, 1850, 2900, 3350, 3590], gains: [1, 0.0631, 0.0631, 0.0158, 0.0158], qs: [40, 90, 100, 120, 120] },
3: { freqs: [430, 820, 2700, 3000, 3300], gains: [1, 0.3162, 0.0501, 0.0794, 0.01995], qs: [40, 80, 100, 120, 120] },
4: { freqs: [370, 630, 2750, 3000, 3400], gains: [1, 0.1, 0.0708, 0.0316, 0.01995], qs: [40, 60, 100, 120, 120] },
};
var createFilter = function (ctx, cutoff, Q) {
var lowpassFilter = ctx.createBiquadFilter();
lowpassFilter.type = 'notch'; lowpassFilter.type = 'notch';
lowpassFilter.gain.value = 1; lowpassFilter.gain.value = 1;
lowpassFilter.frequency.value = cutoff; lowpassFilter.frequency.value = cutoff;
@ -16,65 +7,48 @@ var createFilter = function (ctx, cutoff, Q) {
return lowpassFilter; return lowpassFilter;
}; };
// var createTriOscillator = function (freq) { const createOscillator = (ctx, freq) => {
// var osc = ctx.createOscillator(); const osc = ctx.createOscillator();
// osc.type = 'triangle';
// osc.frequency.value = freq * 1.0;
// osc.detune.value = 0;
// return osc;
// };
var createLFO = function (ctx, freq) {
var osc = ctx.createOscillator();
osc.frequency.value = freq; osc.frequency.value = freq;
osc.type = 'sine'; osc.type = 'sine';
osc.start();
return osc; return osc;
}; };
var createLFOGain = function (ctx, gain) { const createGain = (ctx, gain) => {
var gainNode = ctx.createGain(); const gainNode = ctx.createGain();
gainNode.gain.value = gain; gainNode.gain.value = gain;
return gainNode; return gainNode;
}; };
let lfo, lfoGain;
const createLFO = (ctx, freq, gain) => {
const osc = createOscillator(ctx, freq);
const gainNode = createGain(ctx, gain);
osc.start();
osc.connect(gainNode);
return gainNode;
};
if (typeof GainNode !== 'undefined') { if (typeof GainNode !== 'undefined') {
class PhaserNode extends GainNode { class PhaserNode extends GainNode {
constructor(ac, speed) { constructor(ac, speed, cps) {
super(ac); super(ac);
console.log('speed', speed); this.lfo;
console.log(cps);
if (!vowelFormant[speed]) {
throw new Error('phaser: unknown phaser ' + speed);
}
const { gains, qs, freqs } = vowelFormant[speed];
const makeupGain = ac.createGain(); const makeupGain = ac.createGain();
// var sine = ac.createOscillator(), if (this.lfo == null) {
// sineGain = ac.createGain(); this.lfo = createLFO(ac, speed, 2000);
// //set up our oscillator types
// sine.type = sine.SINE;
// //set the amplitude of the modulation
// sineGain.gain.value = 100;
// //connect the dots
// sine.connect(sineGain);
if (lfo == null) {
lfo = createLFO(ac, 0.25);
lfoGain = createLFOGain(ac, 4000);
lfo.connect(lfoGain);
} }
// sineGain.connect(saw.frequency); const numStages = 2;
for (let i = 0; i < 6; i++) { let fOffset = 0;
for (let i = 0; i < numStages; i++) {
const gain = ac.createGain(); const gain = ac.createGain();
gain.gain.value = 0.5; gain.gain.value = 1 / numStages;
const filter = createFilter(ac, 1000 + i * 20, 1); const filter = createFilter(ac, 1000 + fOffset, 0.5);
this.connect(filter); this.connect(filter);
lfoGain.connect(filter.detune); this.lfo.connect(filter.detune);
filter.connect(gain); filter.connect(gain);
gain.connect(makeupGain); gain.connect(makeupGain);
fOffset += 200 + Math.pow(i, 2);
} }
makeupGain.gain.value = 1; // how much makeup gain to add? makeupGain.gain.value = 1; // how much makeup gain to add?
this.connect = (target) => makeupGain.connect(target); this.connect = (target) => makeupGain.connect(target);

2
packages/superdough/superdough.mjs
View File

@ -366,7 +366,7 @@ export const superdough = async (value, deadline, hapDuration) => {
} }
if (phaser !== undefined) { if (phaser !== undefined) {
const phaserFX = ac.createPhaser(phaser); const phaserFX = ac.createPhaser(phaser, hapDuration);
chain.push(phaserFX); chain.push(phaserFX);
} }