Updated Candidate Recommendation: Dubbing and Audio description Profiles of TTML2

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The Timed Text Working Group invites implementations of an updated Candidate Recommendation Snapshot of Dubbing and Audio description Profiles of TTML2. This specification defines DAPT, a TTML-based file format for the exchange of timed text content in transcription and translation workflows used in the production of dubbing scripts, audio description, translation subtitles and hard of hearing subtitles (also known as closed captions).

Comments are welcome via Github issues or email to public-tt@w3.org by 15 January 2026.

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