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gain curve func

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This commit is contained in:
Jade (Rose) Rowland 2025-03-31 00:17:26 -04:00
parent b192c6823c
commit 5ed28d6168
2 changed files with 22 additions and 6 deletions
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2
packages/superdough/helpers.mjs
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@ -3,7 +3,7 @@ import { clamp, nanFallback } from './util.mjs';
export function gainNode(value) {
const node = getAudioContext().createGain();
node.gain.value = value;
node.gain.value = value
return node;
}

24
packages/superdough/superdough.mjs
View File

@ -20,6 +20,16 @@ export function registerSound(key, onTrigger, data = {}) {
soundMap.setKey(key.toLowerCase(), { onTrigger, data });
}
let gainCurveFunc = (val) => Math.pow(val,2)
export function applyGainCurve(val) {
return gainCurveFunc(val)
}
export function setGainCurve(newGainCurveFunc) {
gainCurveFunc = newGainCurveFunc
}
function aliasBankMap(aliasMap) {
// Make all bank keys lower case for case insensitivity
for (const key in aliasMap) {
@ -87,7 +97,7 @@ export function getSound(s) {
const defaultDefaultValues = {
s: 'triangle',
gain: 0.8,
gain: 1,
postgain: 1,
density: '.03',
ftype: '12db',
@ -471,12 +481,17 @@ export const superdough = async (value, t, hapDuration) => {
compressorRelease,
} = value;
gain = nanFallback(gain, 1);
gain = applyGainCurve(nanFallback(gain, 1));
postgain = applyGainCurve(postgain)
shapevol = applyGainCurve(shapevol)
distortvol = applyGainCurve(distortvol)
delay = applyGainCurve(delay)
velocity = applyGainCurve(velocity)
//music programs/audio gear usually increments inputs/outputs from 1, so imitate that behavior
channels = (Array.isArray(channels) ? channels : [channels]).map((ch) => ch - 1);
gain *= velocity; // velocity currently only multiplies with gain. it might do other things in the future
let toDisconnect = []; // audio nodes that will be disconnected when the source has ended
const onended = () => {
toDisconnect.forEach((n) => n?.disconnect());
@ -516,6 +531,7 @@ export const superdough = async (value, t, hapDuration) => {
// gain stage
chain.push(gainNode(gain));
chain.push(gainNode(.8 * velocity))
//filter
const ftype = getFilterType(value.ftype);
@ -616,7 +632,7 @@ export const superdough = async (value, t, hapDuration) => {
}
// last gain
const post = new GainNode(ac, { gain: postgain });
const post = new GainNode(ac, { gain:postgain });
chain.push(post);
connectToDestination(post, channels);