2014-10-22 22:49:42 +00:00
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<!DOCTYPE html>
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2014-03-15 03:17:18 +00:00
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<html>
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<head>
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2014-10-22 22:49:42 +00:00
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<meta charset="utf-8">
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2014-03-15 05:02:33 +00:00
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<title>Envelope</title>
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2014-03-15 03:17:18 +00:00
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2019-01-09 01:21:29 +00:00
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
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<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">
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2014-08-26 03:47:07 +00:00
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2020-07-18 00:58:09 +00:00
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<script src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/webcomponents-bundle.js"></script>
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2020-07-18 00:36:42 +00:00
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<link href="https://fonts.googleapis.com/css?family=Material+Icons&display=block" rel="stylesheet"/>
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2019-01-09 01:21:29 +00:00
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<script src="../build/Tone.js"></script>
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2020-07-18 00:58:09 +00:00
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<script src="./js/tone-ui.js"></script>
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<script src="./js/components.js"></script>
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2015-02-12 03:39:28 +00:00
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</head>
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<body>
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<style type="text/css">
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2015-06-26 05:23:05 +00:00
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img {
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2019-01-09 01:21:29 +00:00
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display: block;
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margin: 5px auto;
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2015-06-27 22:02:55 +00:00
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width: 300px!important;
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2015-02-12 03:39:28 +00:00
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}
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2015-06-26 05:23:05 +00:00
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2019-01-09 01:21:29 +00:00
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tone-trigger {
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margin-bottom: 10px;
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2015-02-12 03:39:28 +00:00
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}
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</style>
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2020-07-18 00:36:42 +00:00
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<tone-example label="Envelope">
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<div slot="explanation">
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2015-06-27 21:25:01 +00:00
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Envelopes ramp amplitude, frequency or any other parameter over time.
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2019-01-09 01:21:29 +00:00
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<a href="https://tonejs.github.io/docs/Envelope">Tone.Envelope</a> and the classes that extend it
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2015-06-26 05:23:05 +00:00
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implement an <a href="https://en.wikipedia.org/wiki/Synthesizer#ADSR_envelope" target="_blank">ADSR</a> envelope type
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which splits its ramp into four distinct phases: Attack, Decay, Sustain, Release.
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<img src="https://upload.wikimedia.org/wikipedia/commons/e/ea/ADSR_parameter.svg">
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2020-07-18 00:36:42 +00:00
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</div>
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2019-01-09 01:21:29 +00:00
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2020-07-18 00:36:42 +00:00
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<div id="content">
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<tone-momentary-button></tone-momentary-button>
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</div>
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2014-08-26 03:47:07 +00:00
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2019-01-09 01:21:29 +00:00
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</tone-example>
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<script type="text/javascript">
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2020-07-19 00:20:19 +00:00
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const env = new Tone.AmplitudeEnvelope({
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attack: 0.11,
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decay: 0.21,
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sustain: 0.5,
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release: 1.2
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2020-07-18 00:36:42 +00:00
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}).toDestination();
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2014-08-26 03:47:07 +00:00
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2020-07-19 00:20:19 +00:00
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// create an oscillator and connect it to the envelope
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const osc = new Tone.Oscillator({
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partials: [3, 2, 1],
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type: "custom",
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frequency: "C#4",
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volume: -8,
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2015-06-26 05:23:05 +00:00
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}).connect(env).start();
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2014-08-28 04:39:17 +00:00
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2020-07-19 00:20:19 +00:00
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// bind the interface
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2020-07-18 00:36:42 +00:00
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drawer().add({
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tone: env,
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2020-07-19 00:20:19 +00:00
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name: "Envelope"
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2020-07-18 00:36:42 +00:00
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}).add({
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tone: osc,
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2020-07-19 00:20:19 +00:00
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});
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2015-06-26 05:23:05 +00:00
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2020-07-18 00:36:42 +00:00
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document.querySelector("tone-momentary-button").addEventListener("down", e => env.triggerAttack());
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document.querySelector("tone-momentary-button").addEventListener("up", e => env.triggerRelease());
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2014-03-15 03:17:18 +00:00
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</script>
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</body>
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2017-03-18 16:35:37 +00:00
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</html>
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