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sample adsr support

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This commit is contained in:
Felix Roos 2022-09-22 15:33:06 +02:00
parent 7f6940f3a5
commit 014c258c57
1 changed files with 7 additions and 16 deletions
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23
packages/webaudio/webaudio.mjs
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@ -181,10 +181,10 @@ Pattern.prototype.out = function () {
crush, crush,
shape, shape,
pan, pan,
attack = 0.001, attack = 0.0001,
decay = 0.05, decay = 0.0001,
sustain = 0.5, sustain = 1,
release = 0.001, release = 0.0001,
speed = 1, // sample playback speed speed = 1, // sample playback speed
begin = 0, begin = 0,
end = 1, end = 1,
@ -284,18 +284,9 @@ Pattern.prototype.out = function () {
cutGroups[cut] = bufferSource; cutGroups[cut] = bufferSource;
} }
chain.push(bufferSource); chain.push(bufferSource);
if (soundfont || clip) { bufferSource.stop(t + duration + release);
const env = ac.createGain(); const adsr = getADSR(attack, decay, sustain, release, 1, t, t + duration);
const releaseLength = 0.1; chain.push(adsr);
env.gain.value = 0.6;
env.gain.setValueAtTime(env.gain.value, t + duration);
env.gain.linearRampToValueAtTime(0, t + duration + releaseLength);
// env.gain.linearRampToValueAtTime(0, t + duration + releaseLength);
chain.push(env);
bufferSource.stop(t + duration + releaseLength);
} else {
bufferSource.stop(t + duration);
}
} }
// master out // master out
const master = ac.createGain(); const master = ac.createGain();