wavesurfer.js
Version:
Interactive navigable audio visualization using Web Audio and Canvas
144 lines (114 loc) • 6.04 kB
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>wavesurfer.js | Spectrogram plugin</title>
<link href="data:image/gif;" rel="icon" type="image/x-icon" />
<!-- Bootstrap -->
<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="../css/style.css" />
<link rel="stylesheet" href="../css/ribbon.css" />
<!-- wavesurfer.js -->
<script src="../../dist/wavesurfer.min.js"></script>
<!-- spectrogram format renderer -->
<script src="../../plugin/wavesurfer.spectrogram.js"></script>
<!-- App -->
<script src="app.js"></script>
<script src="../trivia.js"></script>
</head>
<body itemscope itemtype="http://schema.org/WebApplication">
<div class="container">
<div class="header">
<noindex>
<ul class="nav nav-pills pull-right">
<li><a href="?fill">Fill</a></li>
<li><a href="?scroll">Scroll</a></li>
</ul>
</noindex>
<h1 itemprop="name"><a href="http://wavesurfer-js.org">wavesurfer.js</a><noindex> + Spectrogram</noindex></h1>
</div>
<div id="demo">
<div id="waveform">
<div class="progress progress-striped active" id="progress-bar">
<div class="progress-bar progress-bar-info"></div>
</div>
<!-- Here be waveform -->
</div>
<div id="wave-spectrogram"></div>
<div class="controls">
<button class="btn btn-primary" data-action="play">
<i class="glyphicon glyphicon-play"></i>
Play
/
<i class="glyphicon glyphicon-pause"></i>
Pause
</button>
</div>
</div>
<div class="row marketing">
<div class="col-lg-4">
<h4>wavesurfer.js Spectrogram Plugin</h4>
<p itemprop="about">Adds a simple spectrogram to your <strong>wavesurfer.js</strong> instances.</p>
<h4>Installation</h4>
<p>
<ol>
<li>add the Spectrogram plugin script tag</li>
<li>create a <code>WaveSurfer</code> instance</li>
<li>add a container HTML element for the spectrogram</li>
<li>create a Spectrogram instance in the <code>WaveSurfer</code>'s <code>"ready"</code> event callback</li>
</ol>
</p>
<p>
<a class="btn btn-large btn-success" href="../../plugin/wavesurfer.spectrogram.js" itemprop="downloadUrl">Download <strong>the plugin</strong> (5 KB)</a>
</p>
</div>
<div class="col-lg-8">
<h4>Quick Start</h4>
<noindex><p>
<pre><code>var wavesurfer = Object.create(WaveSurfer);
wavesurfer.init({
// your options here
});
wavesurfer.on('ready', function () {
var spectrogram = Object.create(WaveSurfer.Spectrogram);
spectrogram.init({
wavesurfer: wavesurfer,
container: "#wave-spectrogram"
});
});
wavesurfer.load('example/media/demo.wav');</code></pre>
</p></noindex>
<br />
<h4>Options</h4>
<ul class="markdown-body">
<li><code>wavesurfer</code> - <em>required</em> - a WaveSurfer instance.</li>
<li><code>container</code> - <em>required</em> - the element in which to place the spectrogram, or a CSS selector to find it.</li>
<li><code>fftSamples</code> - number of FFT samples (<code>512</code> by default). Number of spectral lines and height of the spectrogram will be a half of this parameter.</li>
<li><code>frequenciesDataUrl</code> - URL to load spectral data from.</li>
</ul>
</div>
</div>
<div class="footer row">
<div class="col-sm-12">
<a rel="license" href="https://creativecommons.org/licenses/by/3.0/deed.en_US"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/3.0/80x15.png" /></a>
</div>
<div class="col-sm-12">
<span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">wavesurfer.js</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="https://github.com/katspaugh/wavesurfer.js" property="cc:attributionName" rel="cc:attributionURL">katspaugh</a> is licensed under a <a rel="license" href="https://creativecommons.org/licenses/by/3.0/deed.en_US">Creative Commons Attribution 3.0 Unported License</a>.
</div>
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</div>
<div class="github-fork-ribbon-wrapper right">
<div class="github-fork-ribbon">
<a itemprop="isBasedOnUrl" href="https://github.com/katspaugh/wavesurfer.js">Fork me on GitHub</a>
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