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<title>wavesurfer.js | Microphone plugin</title>
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<!-- wavesurfer.js -->
<script src="../../dist/wavesurfer.js"></script>
<!-- microphone renderer -->
<script src="../../dist/plugin/wavesurfer.microphone.js"></script>
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<h1 itemprop="name"><a href="http://wavesurfer-js.org">wavesurfer.js</a><noindex> + Microphone</noindex></h1>
</div>
<div id="demo">
<div id="waveform"></div>
<div class="controls">
<button id="micBtn" class="btn btn-primary" data-action="start">
Microphone:
<i class="glyphicon glyphicon-play"></i>
Start
/
<i class="glyphicon glyphicon-stop"></i>
Stop
</button>
</div>
</div>
<div class="row marketing">
<div class="col-lg-4">
<h4>wavesurfer.js Microphone Plugin</h4>
<p itemprop="about">Visualizes audio input from a microphone in <strong>wavesurfer.js</strong> instances.</p>
<h4>Installation</h4>
<p>
<ol>
<li>add the Microphone plugin to the plugins property of the wavesurfer options</li>
<li>create a new instance of wavesurfer by using the create function</li>
<li>control the Microphone using the <code>start</code>, <code>stopDevice</code>, <code>play</code>, <code>pause</code>, <code>stop</code> and <code>togglePlay</code> methods</li>
</ol>
</p>
<p>
<a class="btn btn-large btn-success" href="../../dist/plugin/wavesurfer.microphone.min.js" itemprop="downloadUrl" download>Download the plugin</a>
</p>
</div>
<div class="col-lg-8">
<h4>Quick Start</h4>
<noindex><p>
<pre><code>var wavesurfer = WaveSurfer.create({
container : '#waveform',
waveColor : 'black',
interact : false,
cursorWidth : 0,
plugins: [
WaveSurfer.microphone.create()
]
});
wavesurfer.microphone.on('deviceReady', function(stream) {
console.log('Device ready!', stream);
});
wavesurfer.microphone.on('deviceError', function(code) {
console.warn('Device error: ' + code);
});
// start the microphone
wavesurfer.microphone.start();
// pause rendering
//wavesurfer.microphone.pause();
// resume rendering
//wavesurfer.microphone.play();
// stop visualization and disconnect microphone
//wavesurfer.microphone.stopDevice();
// same as stopDevice() but also clears the wavesurfer canvas
//wavesurfer.microphone.stop();
// destroy the plugin
//wavesurfer.microphone.destroy();
</code></pre>
</p></noindex>
<br />
<h4>Options</h4>
<table class="table table-striped table-bordered">
<thead>
<tr>
<th>Name</th>
<th>Required</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>wavesurfer</code></td>
<td>yes</td>
<td></td>
<td>A WaveSurfer instance.</td>
</tr>
<tr>
<td><code>bufferSize</code></td>
<td>no</td>
<td>4096</td>
<td>The buffer size in units of sample-frames. If specified, the <code>bufferSize</code> must be one of the following values: 256, 512, 1024, 2048, 4096, 8192, 16384.</td>
</tr>
<tr>
<td><code>numberOfInputChannels</code></td>
<td>no</td>
<td>1</td>
<td>Integer specifying the number of channels for this node's input. Values of up to 32 are supported.</td>
</tr>
<tr>
<td><code>numberOfOutputChannels</code></td>
<td>no</td>
<td>1</td>
<td>Integer specifying the number of channels for this node's output. Values of up to 32 are supported.</td>
</tr>
</tbody>
</table>
<h4>Events</h4>
<table class="table table-striped table-bordered">
<thead>
<tr>
<th>Name</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>deviceReady</code></td>
<td>Invoked when the device is ready to use. Callback will receive a <code>LocalMediaStream</code> object that contains the microphone stream.</td>
</tr>
<tr>
<td><code>deviceError</code></td>
<td>Invoked when the user doesn't allow the browser to access the microphone. Callback will receive a (string) <a href='https://developer.mozilla.org/en-US/docs/NavigatorUserMedia.getUserMedia#errorCallback'>error code</a>.</td>
</tr>
</tbody>
</table>
</div>
</div>
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<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>
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<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>.
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