BASELINE NowYouCanUse.com
Limited Availability Media elements

Audio and video tracks

The audioTracks and videoTracks APIs for media elements switch audio and video tracks during playback.
Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Oct 16, 2014.
Desktop Browser Engine Support
Google Chrome
—
Unsupported
Mozilla Firefox
—
Unsupported
Apple Safari
8
Supported
Microsoft Edge
—
Unsupported
Mobile Browser Engine Support
Chrome Android
—
Firefox Android
—
Safari iOS
8
Specifications and References
id: audio-video-tracks