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work on scheduler:

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- simplify clockworker (no audioContext)
- tick based scheduler with cps
- support cps in .out
This commit is contained in:
Felix Roos 2022-08-11 22:58:37 +02:00
parent bf3e90baf5
commit 9478915cf4
4 changed files with 56 additions and 45 deletions
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9
packages/webaudio/webaudio.mjs
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@ -125,7 +125,8 @@ const splitSN = (s, n) => {
};
Pattern.prototype.out = function () {
return this.onTrigger(async (t, hap, ct) => {
return this.onTrigger(async (t, hap, ct, cps) => {
const hapDuration = hap.duration / cps;
try {
const ac = getAudioContext();
// calculate correct time (tone.js workaround)
@ -175,7 +176,7 @@ Pattern.prototype.out = function () {
freq = fromMidi(n); // + 48);
}
// make oscillator
const o = getOscillator({ t, s, freq, duration: hap.duration, release });
const o = getOscillator({ t, s, freq, duration: hapDuration, release });
chain.push(o);
// level down oscillators as they are really loud compared to samples i've tested
const g = ac.createGain();
@ -183,7 +184,7 @@ Pattern.prototype.out = function () {
chain.push(g);
// TODO: make adsr work with samples without pops
// envelope
const adsr = getADSR(attack, decay, sustain, release, 1, t, t + hap.duration);
const adsr = getADSR(attack, decay, sustain, release, 1, t, t + hapDuration);
chain.push(adsr);
} else {
// load sample
@ -221,7 +222,7 @@ Pattern.prototype.out = function () {
}
bufferSource.playbackRate.value = Math.abs(speed) * bufferSource.playbackRate.value;
// TODO: nudge, unit, cut, loop
let duration = soundfont || clip ? hap.duration : bufferSource.buffer.duration;
let duration = soundfont || clip ? hapDuration : bufferSource.buffer.duration;
// let duration = bufferSource.buffer.duration;
const offset = begin * duration;
duration = ((end - begin) * duration) / Math.abs(speed);