2014-03-15 03:17:18 +00:00
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<html>
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<head>
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2014-03-15 03:30:00 +00:00
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<title>LFO</title>
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2014-03-15 03:17:18 +00:00
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2014-09-06 19:35:31 +00:00
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<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
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2014-08-29 16:25:10 +00:00
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2014-09-04 19:20:25 +00:00
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<script type="text/javascript" src="./deps/jquery.min.js"></script>
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<script type="text/javascript" src="./deps/jquery-ui.js"></script>
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<script type="text/javascript" src="./deps/jquery.ui.touch-punch.js"></script>
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<script type="text/javascript" src="../build/Tone.js"></script>
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2014-08-29 16:25:10 +00:00
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<script type="text/javascript" src="./Widgets.js"></script>
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<script type="text/javascript" src="./ExampleList.js"></script>
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<link rel="stylesheet" type="text/css" href="./style/widgets.css">
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<link rel="stylesheet" type="text/css" href="./style/jquery-ui.css">
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2014-03-15 03:17:18 +00:00
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</head>
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<body>
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2014-04-16 00:05:11 +00:00
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2014-08-29 16:25:10 +00:00
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<div id="Container">
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<div id="Explanation">
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Low Frequency Oscillators
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<br>
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<br>
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<a href="http://en.wikipedia.org/wiki/Low-frequency_oscillation">LFOs</a> are a powerful musical tool.
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2014-09-02 16:15:29 +00:00
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LFOs can be connected to Tone.Signals and AudioParams to control nearly anything. This example uses LFOs
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to control the oscillators pitch, detune, delay time, and filter frequency to make some crazy sounds.
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2014-08-29 16:25:10 +00:00
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</div>
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<div id="Content"></div>
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</div>
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<script type="text/javascript">
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/* globals Tone, GUI */
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2014-09-05 04:58:19 +00:00
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var osc = new Tone.Oscillator(110, "triangle");
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osc.toMaster();
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2014-09-06 19:35:31 +00:00
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var freqLFO = new Tone.LFO(0.1, 80, 160);
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2014-09-05 04:58:19 +00:00
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freqLFO.setType("square");
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freqLFO.connect(osc.frequency);
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2014-09-06 19:35:31 +00:00
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var detuneLFO = new Tone.LFO(12, -80, 80);
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2014-09-05 04:58:19 +00:00
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detuneLFO.connect(osc.detune);
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var amplitudeLFO = new Tone.LFO(4, 0.05, 0.5);
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amplitudeLFO.connect(osc.output.gain);
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2014-08-29 16:25:10 +00:00
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// GUI //
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var content = $("#Content");
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new GUI.TopBar(Tone);
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new GUI.Checkbox(content, function(on){
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if (on){
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2014-09-05 04:58:19 +00:00
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osc.start();
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freqLFO.start();
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detuneLFO.start();
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amplitudeLFO.start();
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2014-04-16 00:05:11 +00:00
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} else {
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2014-09-05 04:58:19 +00:00
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osc.stop();
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freqLFO.stop();
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detuneLFO.stop();
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amplitudeLFO.stop();
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2014-04-16 00:05:11 +00:00
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}
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2014-08-29 16:25:10 +00:00
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}, "start", "stop");
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2014-09-05 04:58:19 +00:00
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//sliders
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var freqSlider = new GUI.Slider(content, function(val){
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var scaled = val * 2 + 0.1;
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freqLFO.setFrequency(scaled);
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return scaled;
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}, 1, "pitch LFO");
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freqSlider.render(0.1);
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var detuneSlider = new GUI.Slider(content, function(val){
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var scaled = val * 20 + 5;
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detuneLFO.setFrequency(scaled);
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return scaled;
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}, 1, "detune LFO");
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detuneSlider.render(0.5);
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var amplitudeSlider = new GUI.Slider(content, function(val){
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var scaled = val * 4 + 1;
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amplitudeLFO.setFrequency(scaled);
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return scaled;
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}, 1, "amplitude LFO");
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amplitudeSlider.render(0.75);
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2014-08-29 16:25:10 +00:00
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2014-03-15 03:17:18 +00:00
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</script>
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2014-08-29 16:25:10 +00:00
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<style type="text/css">
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#Content {
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text-align: center;
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width: 220px;
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height: 250px;
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}
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.Slider {
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2014-09-02 16:15:29 +00:00
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margin-top: 15px;
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2014-08-29 16:25:10 +00:00
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}
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.Checkbox {
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width: 100%;
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}
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</style>
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2014-03-15 03:17:18 +00:00
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</body>
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</html>
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