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

<p><span class="seoSummary"><a href="/en-US/docs/Web/API/Web_Audio_API">Web Audio API</a> 的 <strong><code>AudioNodeOptions</code></strong> 字典指定了创建新 {{domxref("AudioNode")}} 对象时可使用的选项.</span></p>

<p><code>AudioNodeOptions</code> 继承自不同类型的音频节点构造函数的选项对象. 例如 {{domxref("AnalyserNode.AnalyserNode")}} 或 {{domxref("GainNode.GainNode")}}.</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox">var audioNodeOptions = {
  "channelCount" : 2,
  "channelCountMode" : "max",
  "channelInterpretation" : "discrete"
}</pre>

<h3 id="参数">参数</h3>

<dl>
 <dt><em>channelCount</em> {{optional_inline}}</dt>
 <dd>Represents an integer used to determine how many channels are used when <a href="/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#Up-mixing_and_down-mixing">up-mixing and down-mixing</a> connections to any inputs to the node. (See {{domxref("AudioNode.channelCount")}} for more information.) Its usage and precise definition depend on the value of {{domxref("AudioNodeOptions.channelCountMode")}}.</dd>
 <dt><em>channelCount</em>Mode {{optional_inline}}</dt>
 <dd>Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See {{domxref("AudioNode.channelCountMode")}} for more information including default values.)</dd>
 <dt><em>channelInterpretation</em> {{optional_inline}}</dt>
 <dd>Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio <a href="/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#Up-mixing_and_down-mixing">up-mixing and down-mixing</a> will happen.<br>
 The possible values are <code>"speakers"</code> or <code>"discrete"</code>. (See {{domxref("AudioNode.channelCountMode")}} for more information including default values.)</dd>
</dl>

<h2 id="规范">规范</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','#audionodeoptions','AudioNodeOptions')}}</td>
   <td>{{Spec2('Web Audio API')}}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<div>{{CompatibilityTable}}</div>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari (WebKit)</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatChrome(55.0)}}</td>
   <td>{{CompatGeckoDesktop(53)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatOpera(42)}}</td>
   <td>{{CompatUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Android Webview</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
   <th>Chrome for Android</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatChrome(55.0)}}</td>
   <td>{{CompatGeckoMobile(53)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatOperaMobile(42)}}</td>
   <td>{{CompatUnknown}}</td>
   <td>{{CompatChrome(55.0)}}</td>
  </tr>
 </tbody>
</table>
</div>