mirror of
https://github.com/Tonejs/Tone.js
synced 2024-11-16 16:48:00 +00:00
96 lines
2.5 KiB
HTML
96 lines
2.5 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>ANIMATION SYNC</title>
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
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<link rel="icon" type="image/png" sizes="174x174" href="./style/favicon.png">
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<script src="../build/Tone.js"></script>
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<script src="./scripts/jquery.min.js"></script>
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<script src="./scripts/draggabilly.js"></script>
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<script src="./scripts/StartAudioContext.js"></script>
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<script src="./scripts/Interface.js"></script>
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<script src="https://tonejs.github.io/Logo/build/Logo.js"></script>
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<link rel="stylesheet" type="text/css" href="./style/examples.css">
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<script>
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// jshint ignore: start
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</script>
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<style type="text/css">
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#Notes{
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width: 100%;
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height: 20px;
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margin-top: 3px;
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position: relative;
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}
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.Note {
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width: 20%;
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height: 100%;
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position: relative;
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float: left;
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background-color: black;
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opacity: 0;
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}
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</style>
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</head>
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<body>
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<div id="Content">
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<div id="Title">Synchronizing Visuals</div>
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<div id="Explanation">
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Audio scheduling and rendering visuals should always be kept separate. Instead of triggering visuals from within a scheduled event callback, schedule a 'deferred' callback using Tone.Draw which will be invoked on an animation frame at the exact moment of the scheduled event.
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<br><br>
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For more information see <a href="https://github.com/Tonejs/Tone.js/wiki/Performance">this wiki article</a>.
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</div>
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<div id="Notes">
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<div id="C4" class="Note"></div>
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<div id="E4" class="Note"></div>
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<div id="G4" class="Note"></div>
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<div id="B4" class="Note"></div>
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<div id="D5" class="Note"></div>
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</div>
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</div>
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<script id="ToneCode">
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var piano = new Tone.Synth({
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"oscillator" : {
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"type" : "fmsine4",
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"modulationType" : "square"
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}
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}).toMaster();
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var loop = new Tone.Pattern(function(time, note){
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piano.triggerAttackRelease(note, "16n", time);
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// Draw.schedule takes a callback and a time to invoke the callback
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Tone.Draw.schedule(function(){
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//the callback synced to the animation frame at the given time
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$("#"+note).css("opacity", 1).animate({"opacity" : 0}, 300)
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}, time);
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}, ["C4", "E4", "G4", "B4", "D5"]).start(0);
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loop.interval = "16n";
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// GUI //
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Tone.Transport.lookAhead = 0.5
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Interface.Button({
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key : 32,
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type : "toggle",
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text : "Start",
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activeText : "Stop",
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start : function(){
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Tone.Transport.start("+0.1");
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},
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end : function(){
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Tone.Transport.stop();
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}
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});
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</script>
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</body>
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</html>
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