hacklab/strudel
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix: filter envelopes + simplify

Browse source
This commit is contained in:
Felix Roos 2023-09-08 01:40:10 +02:00
parent e597b6473d
commit e2711ba911
2 changed files with 23 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

16
packages/superdough/helpers.mjs
View file

@ -66,15 +66,15 @@ export const getADSR = (attack, decay, sustain, release, velocity, begin, end) =
return gainNode;
};
export const getParamADSR = (param, attack, decay, sustain, release, velocity, begin, end) => {
export const getParamADSR = (param, attack, decay, sustain, release, max, begin, end) => {
param.setValueAtTime(0, begin);
param.linearRampToValueAtTime(velocity, begin + attack);
param.linearRampToValueAtTime(sustain * velocity, begin + attack + decay);
param.setValueAtTime(sustain * velocity, end);
param.linearRampToValueAtTime(0, end + release - 0.1);
param.linearRampToValueAtTime(max, begin + attack);
param.linearRampToValueAtTime(sustain * max, begin + attack + decay);
param.setValueAtTime(sustain * max, end);
param.linearRampToValueAtTime(0, end + release);
};
export function createFilter(context, type, frequency, Q, attack, decay, sustain, release, fenv, t) {
export function createFilter(context, type, frequency, Q, attack, decay, sustain, release, fenv, start, end) {
const filter = context.createBiquadFilter();
filter.type = type;
filter.frequency.value = frequency;
@ -89,8 +89,8 @@ export function createFilter(context, type, frequency, Q, attack, decay, sustain
sustain,
release,
frequency * fenv > 22000 ? 22000 : frequency * fenv,
t,
t + attack + decay + release,
start,
end + release,
);
return filter;
}