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better filter envelopes

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This commit is contained in:
Felix Roos 2025-06-06 11:21:01 +02:00
parent e4cd5dc552
commit 998a010247
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1 changed files with 9 additions and 6 deletions
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15
packages/superdough/dough.mjs
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@ -571,31 +571,34 @@ export class DoughVoice {
// lpf
if (this._lpf) {
let cutoff = this.freq2cutoff(this.cutoff);
let cutoff = this.cutoff;
if (this._lpenv) {
const env = this._lpenv.update(t, gate, this.lpattack, this.lpdecay, this.lpsustain, this.lprelease) ** 2;
cutoff = cutoff + env * this.lpenv * cutoff; // todo proper scaling
cutoff = 2 ** this.lpenv * env * cutoff + cutoff;
}
cutoff = this.freq2cutoff(cutoff);
this._lpf.update(s, cutoff, this.resonance);
s = this._lpf.s1;
}
// hpf
if (this._hpf) {
let cutoff = this.freq2cutoff(this.hcutoff);
let cutoff = this.hcutoff;
if (this._hpenv) {
const env = this._hpenv.update(t, gate, this.hpattack, this.hpdecay, this.hpsustain, this.hprelease) ** 2;
cutoff = cutoff + env * this.hpenv * cutoff; // todo proper scaling
cutoff = 2 ** this.hpenv * env * cutoff + cutoff;
}
cutoff = this.freq2cutoff(cutoff);
this._hpf.update(s, cutoff, this.hresonance);
s = s - this._hpf.s1;
}
// bpf
if (this._bpf) {
let cutoff = this.freq2cutoff(this.bandf);
let cutoff = this.bandf;
if (this._bpenv) {
const env = this._bpenv.update(t, gate, this.bpattack, this.bpdecay, this.bpsustain, this.bprelease) ** 2;
cutoff = cutoff + env * this.bpenv * cutoff; // todo proper scaling
cutoff = 2 ** this.bpenv * env * cutoff + cutoff;
}
cutoff = this.freq2cutoff(cutoff);
this._bpf.update(s, cutoff, this.bandq);
s = this._bpf.s0;
}