Tone.js/examples/daw.html
2020-07-19 13:45:40 -07:00

88 lines
2.6 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>DAW</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://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/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="./js/tone-ui.js"></script>
<script src="./js/components.js"></script>
<style type="text/css">
tone-play-toggle {
margin-bottom: 10px;
}
#tracks {
position: relative;
width: calc(100% - 10px);
margin-left: 10px;
}
#progress {
width: 1px;
height: 100%;
left: 0%;
position: absolute;
background-color: black;
}
img {
width: 100%;
height: 200px;
}
</style>
</head>
<body>
<tone-example label="DAW">
<tone-loader></tone-loader>
<div slot="explanation">
This beat is composed of 3 independent Players each with a different loop length, synced to the Transport to start at different times and different offsets. The players stay synchronized to the position and offset of the Transport.
</div>
<div id="content">
<tone-play-toggle></tone-play-toggle>
<div id="tracks">
<div id="progress"></div>
<img src="https://tonejs.github.io/audio/loop/drum_loop.png">
</div>
</div>
</tone-example>
<script type="text/javascript">
// set the transport
Tone.Transport.bpm.value = 108;
Tone.Transport.loop = true;
Tone.Transport.loopStart = "4m";
Tone.Transport.loopEnd = "8m";
const kick = new Tone.Player({
url: "https://tonejs.github.io/audio/loop/kick.mp3",
loop: true
}).toDestination().sync().start(0);
const snare = new Tone.Player({
url: "https://tonejs.github.io/audio/loop/snare.mp3",
loop: true
}).toDestination().sync().start("2n");
const hh = new Tone.Player({
url: "https://tonejs.github.io/audio/loop/hh.mp3",
loop: true
}).toDestination().sync().start("3:3", "4n"); // start with an offset
// 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());
// keep the playhead on track
setInterval(() => {
// scale it between 0-1
const progress = (Tone.Transport.progress + 1) / 2;
document.querySelector("#progress").style = `left: ${progress*100}%`;
}, 16);
</script>
</body>
</html>