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  2. Closed captioning - Wikipedia

    en.wikipedia.org/wiki/Closed_captioning

    Closed caption capability is also available, with the ability for 3rd-party closed caption devices to plug into the digital cinema server. Probably the best known closed captioning option for film theaters is the Rear Window Captioning System from the National Center for Accessible Media. Upon entering the theater, viewers requiring captions ...

  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. E-captioning - Wikipedia

    en.wikipedia.org/wiki/E-captioning

    However, e-Captioning is now available to TV Broadcast facilities for tapeless workflows. Prior to the advent of e-Captioning, closed captioning was added to a video using a linear deck-to-deck process, which required the use of a physical master video tape, two tape decks (play and record), and a hardware closed captioning encoder. [1]

  7. Audio-to-video synchronization - Wikipedia

    en.wikipedia.org/wiki/Audio-to-video_synchronization

    The AV-sync delay is normally fixed. External AV-sync errors can occur if a microphone is placed far away from the sound source, the audio will be out of sync because the speed of sound is much lower than the speed of light. If the sound source is 340 meters from the microphone, then the sound arrives approximately 1 second later than the light.

  8. Hulu - Wikipedia

    en.wikipedia.org/wiki/Hulu

    Hulu's subscription service was launched in a software release life cycle on June 29, 2010, [107] and officially launched on November 17, 2010, under the branding Hulu Plus. [108] The service remained advertising-supported, but it offers an expanded content library including full seasons, day-after access to current season content and more ...

  9. Rear Window Captioning System - Wikipedia

    en.wikipedia.org/wiki/Rear_Window_Captioning_System

    Open captioning has been little-used due to the fear that it was too intrusive and noticeable to hearing viewers. However, no studies have been conducted to elicit hearing people's opinions on how they will adapt to reading captions on screen. Rear Window captioning is a form of closed captioning because the viewer must choose to view the captions.