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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;
});

72
repl/src/tunes.mjs
View File

@ -744,11 +744,67 @@ bell = bell.chain(vol(0.6).connect(delay),out());
.pianoroll({minMidi:20,maxMidi:120,background:'transparent'})`;
export const waa = `"a4 [a3 c3] a3 c3"
.sub(slowcat(7,12).slow(2))
.off(1/8,add(12))
.off(1/4,add(7))
.legato(.5)
.slow(2)
.wave("sawtooth square")
.filter('lowpass', "<2000 1000 500>")
.out()`;
.sub("<7 12>/2")
.off(1/8, add("12"))
.off(1/4, add("7"))
.legato(.5)
.slow(2)
.wave("sawtooth square")
.filter('lowpass', "<2000 1000 500>")
.out()`;
export const waar = `"a4 [a3 c3] a3 c3".color('#F9D649')
.sub("<7 12 5 12>".slow(2))
.off(1/4,x=>x.add(7).color("#FFFFFF #0C3AA1 #C63928"))
.off(1/8,x=>x.add(12).color('#215CB6'))
.slow(2)
.legato(sine.range(0.3, 2).slow(28))
.wave("sawtooth square".fast(2))
.filter('lowpass', cosine.range(500,4000).slow(16))
.out()
.pianoroll({minMidi:20,maxMidi:120,background:'#202124'})`;
export const hyperpop = `const lfo = cosine.slow(15);
const lfo2 = sine.slow(16);
const filter1 = x=>x.filter('lowpass', lfo2.range(300,3000));
const filter2 = x=>x.filter('highpass', lfo.range(1000,6000)).filter('lowpass',4000)
const scales = slowcat('D3 major', 'G3 major').slow(8)
const drums = await players({
bd: '344/344757_1676145-lq.mp3',
sn: '387/387186_7255534-lq.mp3',
hh: '561/561241_12517458-lq.mp3',
hh2:'44/44944_236326-lq.mp3',
hh3: '44/44944_236326-lq.mp3',
}, 'https://freesound.org/data/previews/')
stack(
"-7 0 -7 7".struct("x(5,8,2)").fast(2).sub(7)
.scale(scales).wave("sawtooth,square").velocity(.3).adsr(0.01,0.1,.5,0)
.apply(filter1),
"~@3 [<2 3>,<4 5>]"
.echo(8,1/16,.7)
.scale(scales)
.wave('square').velocity(.7).adsr(0.01,0.1,0).apply(filter1),
"6 5 4".add(14)
.superimpose(sub("5"))
.fast(1).euclidLegato(3,8)
.mask("<1 0@7>")
.fast(2)
.echo(32, 1/8, .9)
.scale(scales)
.wave("sawtooth")
.velocity(.2)
.adsr(.01,.5,0)
.apply(filter2)
//.echo(4,1/16,.5)
).out().stack(
stack(
"bd <~@7 [~ bd]>".fast(2),
"~ sn",
"[~ hh3]*2"
).tone(drums.chain(vol(.18),out())).fast(2)
).slow(2)
//.pianoroll({minMidi:20, maxMidi:160})
// strudel disable-highlighting`;