151 lines
6.3 KiB
HTML
151 lines
6.3 KiB
HTML
|
<!DOCTYPE html>
|
||
|
|
<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/3.4.1/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.js"></script>
|
||
|
|
|
||
|
|
<!-- spectrogram format renderer -->
|
||
|
|
<script src="../../dist/plugin/wavesurfer.spectrogram.js"></script>
|
||
|
|
|
||
|
|
<!-- App -->
|
||
|
|
<script src="app.js"></script>
|
||
|
|
<script src="../trivia.js"></script>
|
||
|
|
|
||
|
|
<!-- highlight.js for syntax highlighting in this example -->
|
||
|
|
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/default.min.css">
|
||
|
|
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
|
||
|
|
<script>hljs.initHighlightingOnLoad();</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>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class="col-lg-8">
|
||
|
|
<h4>Quick Start</h4>
|
||
|
|
|
||
|
|
<noindex><p>
|
||
|
|
<pre><code>var wavesurfer = WaveSurfer.create({
|
||
|
|
// your options here
|
||
|
|
plugins: [
|
||
|
|
WaveSurfer.spectrogram.create({
|
||
|
|
wavesurfer: wavesurfer,
|
||
|
|
container: "#wave-spectrogram",
|
||
|
|
labels: true
|
||
|
|
})
|
||
|
|
]
|
||
|
|
});
|
||
|
|
|
||
|
|
wavesurfer.load('../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>
|
||
|
|
<li><code>labels</code> - Whether or not to display frequency labels.</li>
|
||
|
|
<li><code>colorMap</code> - Specifies the colormap to be used when rendering the spectrogram.</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<h4>Generating a colorMap</h4>
|
||
|
|
The <a href="https://www.npmjs.com/package/colormap">colormap npm</a> can be used to generate a
|
||
|
|
colormap. In this example, the colormap has been saved to a json file and is retrieved by the
|
||
|
|
client before initializing the spectrogram.
|
||
|
|
|
||
|
|
<noindex><p>
|
||
|
|
<pre><code>const colormap = require('colormap');
|
||
|
|
const colors = colormap({
|
||
|
|
colormap: 'hot',
|
||
|
|
nshades: 256,
|
||
|
|
format: 'float'
|
||
|
|
});
|
||
|
|
const fs = require('fs');
|
||
|
|
fs.writeFile('hot-colormap.json', JSON.stringify(colors));
|
||
|
|
</code></pre>
|
||
|
|
</p></noindex>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class="footer row">
|
||
|
|
<div class="col-sm-12">
|
||
|
|
<a rel="license" href="https://opensource.org/licenses/BSD-3-Clause"><img alt="BSD-3-Clause License" style="border-width:0" src="https://img.shields.io/badge/License-BSD%203--Clause-blue.svg" /></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 href="https://github.com/katspaugh/wavesurfer.js">katspaugh</a> is licensed under a <a rel="license" href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause License</a>.
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</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>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
|
||
|
|
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
|
||
|
|
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
|
||
|
|
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
|
||
|
|
|
||
|
|
ga('create', 'UA-50026819-1', 'wavesurfer.fm');
|
||
|
|
ga('send', 'pageview');
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|