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TV-like CEA-608 closed captioning can now be displayed as an overlay when played back in the Preview and Trimmer windows, making it easy to check placement, edits, and timing of CC information. CEA708 style Closed Captioning is automatically created when the CEA-608 data is created.
The "CC in a TV" symbol Jack Foley created, while senior graphic designer at Boston public broadcaster WGBH that invented captioning for television, is public domain so that anyone who captions TV programs can use it. Closed captioning is the American term for closed subtitles specifically intended for people who are deaf or hard-of-hearing.
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 . Unlike Run-length encoding DVB and DVD subtitles, CTA ...
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The National Captioning Institute, Inc. (NCI) is a 501 (c) (3) nonprofit organization [3] that provides real-time and off-line closed captioning, subtitling and translation, described video, web captioning, and Spanish captioning for television and films. Created in 1979 [5] and headquartered in Chantilly, Virginia, the organization was the ...
In a raster scan display, the vertical blanking interval ( VBI ), also known as the vertical interval or VBLANK, is the time between the end of the final visible line of a frame or field [1] and the beginning of the first visible line of the next frame or field. It is present in analog television, VGA, DVI and other signals.
Teletext was created in the United Kingdom in the early 1970s by John Adams, Philips' lead designer for video display units to provide closed captioning to television shows for the hearing impaired. [6] Public teletext information services were introduced by major broadcasters in the UK, [7] starting with the BBC's Ceefax service in 1974. [8]
Same language subtitling (SLS) refers to the practice of subtitling programs on TV in the same language as the audio. Initially introduced in the early 1970s as a means to make services available to the hard of hearing, closed captioning as it became known was standardized for Latin alphabets in the 1976 World System Teletext agreement.