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adding fm wave choice

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This commit is contained in:
Raphael Forment 2023-08-29 12:54:17 +02:00
parent 02979926fd
commit ebeaac3c5f
1 changed files with 9 additions and 3 deletions
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12
packages/superdough/synth.mjs
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@ -2,7 +2,8 @@ import { midiToFreq, noteToMidi } from './util.mjs';
import { registerSound, getAudioContext } from './superdough.mjs'; import { registerSound, getAudioContext } from './superdough.mjs';
import { getOscillator, gainNode, getEnvelope } from './helpers.mjs'; import { getOscillator, gainNode, getEnvelope } from './helpers.mjs';
const mod = (freq, range = 1, type = 'sine') => { const mod = (freq, range = 1, type) => {
console.log(type)
const ctx = getAudioContext(); const ctx = getAudioContext();
const osc = ctx.createOscillator(); const osc = ctx.createOscillator();
osc.type = type; osc.type = type;
@ -13,7 +14,7 @@ const mod = (freq, range = 1, type = 'sine') => {
return { node: g, stop: (t) => osc.stop(t) }; return { node: g, stop: (t) => osc.stop(t) };
}; };
const fm = (osc, harmonicityRatio, modulationIndex, wave = 'sine') => { const fm = (osc, harmonicityRatio, modulationIndex, wave) => {
const carrfreq = osc.frequency.value; const carrfreq = osc.frequency.value;
const modfreq = carrfreq * harmonicityRatio; const modfreq = carrfreq * harmonicityRatio;
const modgain = modfreq * modulationIndex; const modgain = modfreq * modulationIndex;
@ -33,6 +34,7 @@ export function registerSynthSounds() {
release = 0.01, release = 0.01,
fmh: fmHarmonicity = 1, fmh: fmHarmonicity = 1,
fmi: fmModulationIndex, fmi: fmModulationIndex,
fmwave: fmWaveform = 'sine'
} = value; } = value;
let { n, note, freq } = value; let { n, note, freq } = value;
// with synths, n and note are the same thing // with synths, n and note are the same thing
@ -50,7 +52,11 @@ export function registerSynthSounds() {
let stopFm; let stopFm;
if (fmModulationIndex) { if (fmModulationIndex) {
const { node: modulator, stop } = fm(o, fmHarmonicity, fmModulationIndex); const { node: modulator, stop } = fm(
o, fmHarmonicity,
fmModulationIndex,
fmWaveform
);
modulator.connect(o.frequency); modulator.connect(o.frequency);
stopFm = stop; stopFm = stop;
} }