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anchored fenv, more logical with negative values

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- defaulting to .5 for now...
This commit is contained in:
Felix Roos 2023-09-16 00:44:03 +02:00
parent ee314e9b03
commit df211c994d
1 changed files with 9 additions and 8 deletions
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17
packages/superdough/helpers.mjs
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@ -87,14 +87,15 @@ export function createFilter(context, type, frequency, Q, attack, decay, sustain
// Apply ADSR to filter frequency
if (fenv !== 0) {
let min = frequency;
let max = frequency * 2 ** Math.abs(fenv);
if (fenv < 0) {
// flip min max to keep range the same for negative envelope
// comment this out to flip the range as well...
[min, max] = [max, min];
}
// console.log('min', min, 'max', max);
let anchor = 0.5;
let offset = fenv * anchor;
let min = 2 ** -offset;
let max = 2 ** (fenv - offset);
min *= frequency;
max *= frequency;
//console.log('min', min, 'max', max);
min = clamp(min + frequency, 0, 20000);
max = clamp(max + frequency, 0, 20000);
getParamADSR(filter.frequency, attack, decay, sustain, release, min, max, start, end);