Tone.js/examples/bembe.html
2020-07-17 17:36:42 -07:00

83 lines
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HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>MetalSynth</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>
<link href="https://fonts.googleapis.com/css?family=Material+Icons&display=block" rel="stylesheet"/>
<script src="../build/Tone.js"></script>
<script src="../../examples/dist/tone-gui.js"></script>
<script src="../../examples/dist/components.js"></script>
</head>
<body>
<tone-example label="Bembe">
<div slot="explanation">
<a href="https://tonejs.github.io/docs/MetalSynth">Tone.MetalSynth</a>
creates metallic, inharmonic sounds using 6
<a href="https://tonejs.github.io/docs/FMOscillator">Tone.FMOscillators</a>
with a tuning based on the TR-808 Cymbal.
<a href="https://tonejs.github.io/docs/MembraneSynth">Tone.MembraneSynth</a>
makes kick and tom-like sounds using a frequency envelope which is triggered on notes attack.
</div>
<div id="content">
<tone-play-toggle></tone-play-toggle>
</div>
</tone-example>
<script type="text/javascript">
const bell = new Tone.MetalSynth({
harmonicity: 12,
resonance: 800,
modulationIndex: 20,
envelope: {
decay: 0.4,
},
volume: -15
}).toDestination();
const bellPart = new Tone.Sequence(((time, freq) => {
bell.triggerAttack(freq, time, Math.random()*0.5 + 0.5);
}), [[300, null, 200],
[null, 200, 200],
[null, 200, null],
[200, null, 200]
], "4n").start(0);
const conga = new Tone.MembraneSynth({
pitchDecay: 0.008,
octaves: 2,
envelope: {
attack: 0.0006,
decay: 0.5,
sustain: 0
}
}).toDestination();
const congaPart = new Tone.Sequence(((time, pitch) => {
conga.triggerAttack(pitch, time, Math.random()*0.5 + 0.5);
}), ["G3", "C4", "C4", "C4"], "4n").start(0);
Tone.Transport.bpm.value = 115;
drawer().add({
tone: conga,
title: "Conga"
}).add({
tone: bell,
title: "Bell"
});
// connect the UI with the components
document.querySelector("tone-play-toggle").addEventListener("start", () => Tone.Transport.start());
document.querySelector("tone-play-toggle").addEventListener("stop", () => Tone.Transport.stop());
</script>
</body>
</html>