mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 16:48:00 +00:00
74 lines
2 KiB
HTML
74 lines
2 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>Envelope</title>
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
|
|
<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">
|
|
|
|
<script src="https://unpkg.com/@webcomponents/webcomponentsjs@^2/webcomponents-bundle.js"></script>
|
|
<script src="../build/Tone.js"></script>
|
|
<script src="./js/tonejs-ui.js"></script>
|
|
</head>
|
|
<body>
|
|
<style type="text/css">
|
|
img {
|
|
display: block;
|
|
margin: 5px auto;
|
|
width: 300px!important;
|
|
}
|
|
|
|
tone-trigger {
|
|
margin-bottom: 10px;
|
|
}
|
|
</style>
|
|
<tone-example>
|
|
<tone-explanation label="Envelope">
|
|
Envelopes ramp amplitude, frequency or any other parameter over time.
|
|
<a href="https://tonejs.github.io/docs/Envelope">Tone.Envelope</a> and the classes that extend it
|
|
implement an <a href="https://en.wikipedia.org/wiki/Synthesizer#ADSR_envelope" target="_blank">ADSR</a> envelope type
|
|
which splits its ramp into four distinct phases: Attack, Decay, Sustain, Release.
|
|
<img src="https://upload.wikimedia.org/wikipedia/commons/e/ea/ADSR_parameter.svg">
|
|
</tone-explanation>
|
|
|
|
<tone-content>
|
|
<tone-trigger></tone-trigger>
|
|
<tone-envelope><tone-envelope>
|
|
</tone-content>
|
|
|
|
<tone-drawer collapsed>
|
|
<tone-oscillator collapsed frequency><tone-oscillator>
|
|
</tone-drawer>
|
|
</tone-example>
|
|
|
|
<script type="text/javascript">
|
|
var env = new Tone.AmplitudeEnvelope({
|
|
"attack" : 0.11,
|
|
"decay" : 0.21,
|
|
"sustain" : 0.5,
|
|
"release" : 1.2
|
|
}).toMaster();
|
|
|
|
//create an oscillator and connect it to the envelope
|
|
var osc = new Tone.Oscillator({
|
|
"partials" : [3, 2, 1],
|
|
"type" : "custom",
|
|
"frequency" : "C#4",
|
|
"volume" : -8,
|
|
}).connect(env).start();
|
|
|
|
//bind the interface
|
|
document.querySelector("tone-envelope").bind(env);
|
|
document.querySelector("tone-oscillator").bind(osc);
|
|
|
|
document.querySelector("tone-trigger").addEventListener("change", e => {
|
|
if (e.detail){
|
|
env.triggerAttack();
|
|
} else {
|
|
env.triggerRelease();
|
|
}
|
|
});
|
|
</script>
|
|
</body>
|
|
</html>
|