The track defines chapter titles (suitable for navigating the media resource)
Textual descriptions of the video content, when the visual content is obscured, unavailable, or not usable
The track defines content used by scripts. Not visible for the user
Transcription or translation of the dialog, suitable for when the sound is available but not understood (e.g., because the user does not understand the language of the media resource’s audio track)
Generated using TypeDoc
Transcription or translation of audio, suitable for when sound is unavailable or not clearly audible (e.g., because it is muted, drowned-out by ambient noise, or because the user is deaf)