AudioTrack: sourceBuffer property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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The read-only AudioTrack property sourceBuffer returns the SourceBuffer that created the track, or null if the track was not created by a SourceBuffer or the SourceBuffer has been removed from the MediaSource.sourceBuffers attribute of its parent media source.

Value

Specification
Media Source Extensions™ # dom-audiotrack-sourcebuffer