---
title: HTMLMediaElement.volume
slug: Web/API/HTMLMediaElement/volume
translation_of: Web/API/HTMLMediaElement/volume
---
<p>{{APIRef("HTML DOM")}}</p>

<p><strong><code>HTMLMediaElement.volume</code></strong> 属性可设置媒体播放时的音量。</p>

<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox">var <em>volume</em> ​= <em>video</em>.volume; //1</pre>

<h3 id="值">值</h3>

<p>取值为 0 到 1 的双精度值。0 为静音，1 为音量最大时的值。</p>

<h2 id="示例">示例</h2>

<pre>var obj = document.createElement('audio');
console.log(obj.volume); // 1
obj.volume = 0.75;</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">备注</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG', "#dom-media-volume", "HTMLMediaElement.volume")}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td></td>
  </tr>
  <tr>
   <td>{{SpecName('HTML5 W3C', "embedded-content-0.html#htmlmediaelement", "HTMLMediaElement.volume")}}</td>
   <td>{{Spec2('HTML5 W3C')}}</td>
   <td></td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>



<p>{{Compat("api.HTMLMediaElement.volume")}}</p>

<h2 id="See_Also" name="See_Also">更多</h2>

<ul>
 <li>定义该属性的接口 {{domxref("HTMLMediaElement")}}.</li>
 <li>{{domxref("HTMLMediaElement.muted")}}</li>
</ul>