---
title: MediaElementAudioSourceNode
slug: Web/API/MediaElementAudioSourceNode
translation_of: Web/API/MediaElementAudioSourceNode
---
<p>{{APIRef("Web Audio API")}}</p>

<div>
<p>The <code>MediaElementAudioSourceNode</code> interface represents an audio source consisting of an HTML5 {{ htmlelement("audio") }} or {{ htmlelement("video") }} element. It is an {{domxref("AudioNode")}} that acts as an audio source.</p>
</div>

<p>A <code>MediaElementSourceNode</code> has no inputs and exactly one output, and is created using the {{domxref("AudioContext.createMediaElementSource")}} method. The amount of channels in the output equals the number of channels of the audio referenced by the {{domxref("HTMLMediaElement")}} used in the creation of the node, or is 1 if the {{domxref("HTMLMediaElement")}} has no audio.</p>

<table class="properties">
 <tbody>
  <tr>
   <th scope="row">Number of inputs</th>
   <td><code>0</code></td>
  </tr>
  <tr>
   <th scope="row">Number of outputs</th>
   <td><code>1</code></td>
  </tr>
  <tr>
   <th scope="row">Channel count</th>
   <td>defined by the media in the {{domxref("HTMLMediaElement")}} passed to the {{domxref("AudioContext.createMediaElementSource")}} method that created it.</td>
  </tr>
 </tbody>
</table>

<h2 id="Constructor">Constructor</h2>

<dl>
 <dt>{{domxref("MediaElementAudioSourceNode.MediaElementAudioSourceNode", "MediaElementAudioSourceNode()")}}</dt>
 <dd>Creates a new <code>MediaElementAudioSourceNode</code> object instance.</dd>
</dl>

<h2 id="Properties">Properties</h2>

<p><em>Inherits properties from its parent, </em><em>{{domxref("AudioNode")}}</em>.</p>

<dl>
 <dt>{{domxref("MediaElementAudioSourceNode.mediaElement", "mediaElement")}} {{ReadOnlyInline}}</dt>
 <dd>The {{domxref("HTMLMediaElement")}} used when constructing this <code>MediaStreamAudioSourceNode</code>.</dd>
</dl>

<h2 id="Methods">Methods</h2>

<p><em>Inherits methods from its parent, </em><em>{{domxref("AudioNode")}}</em>.</p>

<h2 id="Example">Example</h2>

<p>{{page("/en-US/docs/Web/API/AudioContext.createMediaElementSource","Example")}}</p>

<h2 id="Specification">Specification</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('Web Audio API', '#mediaelementaudiosourcenode', 'MediaElementAudioSourceNode')}}</td>
   <td>{{Spec2('Web Audio API')}}</td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<div>


<p>{{Compat("api.MediaElementAudioSourceNode")}}</p>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/Web/API/Web_Audio_API/Using_Web_Audio_API">Using the Web Audio API</a></li>
</ul>