HTML Audio / Video DOM audioTracks property
HTML Audio / Video DOM Reference
Examples
Get the number of available audio tracks:
myVid=document.getElementById("video1");
alert(myVid.audioTracks.length);
alert(myVid.audioTracks.length);
try it"
Definition and Usage
audioTracks property returns AudioTrackList object.
AudioTrackList object represents the audio / video available audio tracks.
Each of the available audio tracks are represented by a AudioTrack object.
Browser Support
All major browsers do not support audioTracks property.
grammar
audio|video .audioTracks
return value
| 类型 | 描述 |
|---|---|
| AudioTrackList 对象 | 表示音频/视频的可用音频轨道。 AudioTrackList 对象：
注释：第一个可用的 AudioTrack 对象的下标是 0。 |
| AudioTrack 对象 | 表示音频轨道。 AudioTrack 对象的属性：
|
HTML Audio / Video DOM Reference