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fix adsr + add example tune

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This commit is contained in:
Felix Roos 2022-04-20 20:15:36 +02:00
parent e6c15dc3c5
commit 7dbdb005b0
2 changed files with 68 additions and 10 deletions
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6
packages/webaudio/webaudio.mjs
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@ -38,7 +38,7 @@ Pattern.prototype._wave = function (type) {
osc.type = type;
const f = getFrequency(e);
osc.frequency.value = f; // expects frequency..
const begin = t ?? (e.whole.begin.valueOf() + lookahead);
const begin = t ?? e.whole.begin.valueOf() + lookahead;
const end = begin + e.duration;
osc.start(begin);
osc.stop(end); // release?
@ -48,7 +48,9 @@ Pattern.prototype._wave = function (type) {
Pattern.prototype.adsr = function (a = 0.01, d = 0.05, s = 1, r = 0.01) {
return this.withAudioNode((t, e, node) => {
const velocity = e.context?.velocity || 1;
const envelope = adsr(a, d, s, r, velocity, e.whole.begin.valueOf() + lookahead, e.whole.end.valueOf() + lookahead);
const begin = t ?? e.whole.begin.valueOf() + lookahead;
const end = begin + e.duration + lookahead;
const envelope = adsr(a, d, s, r, velocity, begin, end);
node?.connect(envelope);
return envelope;
});