This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
Draft
This page is not complete.
The audioTracks read-only property of the SourceBuffer interface returns a list of the audio tracks currently contained inside the SourceBuffer.
var myAudioTracks = sourceBuffer.audioTracks;
An AudioTrackList object.
TBD
| Specification | Status | Comment |
|---|---|---|
| Media Source Extensions The definition of 'audioTracks' in that specification. | Candidate Recommendation | Initial definition. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 23 | (Yes) |
25.0 (25.0)[1] 42.0 (42.0) | 11[2] | 15 | 8 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | 4.4.4 | (Yes) | No support | No support | 11 | 30 | No support |
[1] Available after switching the about:config preference media.mediasource.enabled to true. In addition, support was limited to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed and Media Source Extensions was enabled by default in 42+ for all sites.
[2] Only works on Windows 8+.
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https://developer.mozilla.org/en-US/docs/Web/API/SourceBuffer/audioTracks