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  2. Closed captioning - Wikipedia

    en.wikipedia.org/wiki/Closed_captioning

    Closed captioning (CC) is a form of subtitling, ... The media encoding firms generally use software such as MacCaption to convert EIA-608 captions to this format.

  3. EIA-608 - Wikipedia

    en.wikipedia.org/wiki/EIA-608

    EIA-608, also known as "Line 21 captions" and "CEA-608", [1] is a standard for closed captioning for NTSC TV broadcasts in the United States, Canada and Mexico. It was developed by the Electronic Industries Alliance and required by law to be implemented in most television receivers made in the United States.

  4. CTA-708 - Wikipedia

    en.wikipedia.org/wiki/CTA-708

    CTA-708 (formerly EIA-708 and CEA-708) is the standard for closed captioning for ATSC digital television (DTV) viewing in the United States and Canada.It was developed by the Consumer Electronics sector of the Electronic Industries Alliance, which became Consumer Technology Association.

  5. Subtitles - Wikipedia

    en.wikipedia.org/wiki/Subtitles

    From the expression "closed captions", the word "caption" has in recent years come to mean a subtitle intended for the deaf or hard-of-hearing, be it "open" or "closed". In British English, "subtitles" usually refers to subtitles for the deaf or hard-of-hearing (SDH); however, the term "SDH" is sometimes used when there is a need to make a ...

  6. WebVTT - Wikipedia

    en.wikipedia.org/wiki/WebVTT

    WebVTT (Web Video Text Tracks) is a World Wide Web Consortium (W3C) standard for displaying timed text in connection with the HTML5 <track> element.. The early drafts of its specification were written by the WHATWG in 2010 after discussions about what caption format should be supported by HTML5—the main options being the relatively mature, XML-based Timed Text Markup Language (TTML) or an ...

  7. Twitter now has a closed caption toggle on iOS and Android - AOL

    www.aol.com/news/twitter-now-closed-caption...

    Twitter started testing the closed captions toggle, showing up as a little "CC" button on a video with available captions, back in April. Tweet may have been deleted (opens in a new tab) Now, the ...

  8. Timed Text Markup Language - Wikipedia

    en.wikipedia.org/wiki/Timed_Text_Markup_Language

    Timed Text Markup Language (TTML), previously referred to as Distribution Format Exchange Profile (DFXP), is an XML-based W3C standard for timed text in online media and was designed to be used for the purpose of authoring, transcoding or exchanging timed text information presently in use primarily for subtitling and captioning functions.

  9. Timed text - Wikipedia

    en.wikipedia.org/wiki/Timed_text

    Today, incompatible formats for captioning, subtitling and other forms of timed text are used on the Web. This means that when creating a SMIL presentation, the text portion often needs to be targeted to a particular playback environment. Moreover, the accessibility community relies heavily on captioning to make audiovisual content accessible.