Captions, subtitles & timed text · Working
Timed Text Markup Language
Also called: TTML
ELI5
An XML-based standard for timed text.
Used in conversation
“The platform asks for Timed Text Markup Language in the accessibility or localisation delivery package.”
Pitch context
You may encounter “Timed Text Markup Language” in accessibility, localisation, ethics & ai conversations or materials.
Why it matters: Explains access, language adaptation, care, provenance and emerging synthetic-media responsibilities.
Sources & evidence · 8
Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.
- World Wide Web Consortium — Making Audio and Video Media AccessibleSupporting source family · primary · checked 2026-08-14
- Netflix — Partner Help Center Delivery SpecificationsSupporting source family · primary · checked 2026-08-14
- Coalition for Content Provenance and Authenticity — C2PA Technical Specification and Content CredentialsSupporting source family · primary · checked 2026-08-14
- SAG-AFTRA — Artificial Intelligence ResourcesSupporting source family · primary · checked 2026-08-14
- U.S. Copyright Office — Copyright and Artificial IntelligenceSupporting source family · primary · checked 2026-08-14
- Writers Guild of America West — Artificial Intelligence: Know Your RightsSupporting source family · primary · checked 2026-08-14
- Coalition for Content Provenance and Authenticity — C2PA Technical SpecificationSupporting source family · primary · checked 2026-08-14
- Coalition for Content Provenance and Authenticity — C2PA Conformance ProgramSupporting source family · primary · checked 2026-08-14