AudioDestinationNode.maxChannelCount

在此页

句法
范例
规范
浏览器兼容性
另请参阅
相关话题

maxchannelCount 特性为 AudioDestinationNode interface is an unsigned long defining the maximum amount of channels that the physical device can handle.

AudioNode.channelCount property can be set between 0 and this value (both included). If maxChannelCount is 0 , like in OfflineAudioContext , the channel count cannot be changed.

句法

var audioCtx = new AudioContext();
var myDestination = audioCtx.destination;
myDestination.maxChannelCount = 2;

值

An unsigned long .

范例

The following would set up a simple audio graph, featuring an AudioDestinationNode with maxChannelCount of 2:

var audioCtx = new AudioContext();
var source = audioCtx.createMediaElementSource(myMediaElement);
source.connect(gainNode);
audioCtx.destination.maxChannelCount = 2;
gainNode.connect(audioCtx.destination);

To see a more complete implementation, check out one of our MDN Web Audio examples, such as Voice-change-o-matic or Violent Theremin .

规范

规范	状态	注释
Web 音频 API The definition of 'maxChannelCount' in that specification.	工作草案

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`maxChannelCount`	Chrome 14	Edge 12	Firefox 25	IE 不支持 No	Opera 15	Safari 6	WebView Android Yes	Chrome Android 18	Firefox Android 26	Opera Android 14	Safari iOS Yes	Samsung Internet Android 1.0

图例

完整支持
不支持

另请参阅

使用 Web 音频 API

元数据

最后修改： 2020 年 1 月 22 日

在此页

句法

值

范例

规范

浏览器兼容性

图例

另请参阅

相关话题