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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.
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 .
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.
Several years ago, the Consumer Electronics Ass'n (CEA) renamed itself to the Consumer Technology Ass'n (CTA). Similarly, the standard was "re-designated" as CTA-708 (the current version is CTA-708-E). This page should be renamed to "CTA-708", and CEA-708 should redirect to CTA-708 (as should EIA-708, which hasn't been the designation for ~20 ...
The National Captioning Institute was incorporated on January 30, 1979, with millions of dollars of start-up funding from the federal government. [1] [2] [10] On March 23, 1979, the United States Department of Health, Education, and Welfare announced plans for closed-captioning of twenty hours per week of television shows. [11]
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.
Captioning is mandated by the Americans with Disabilities Act (ADA) as an auxiliary aid or service. [3] CART is a viable option to use in conjunction with or instead of a sign language interpreter, however, the decision made about which medium should be used should be based on the needs of the individuals who require the service. [ 4 ]
A year later, in April 2016, the ability to live stream 360-degree video was launched. Additionally, live streaming resolution was elevated to 1440p and 60 frames per second, and support for the EIA-608 and CEA-708 formats were added for embedded captioning. [173] In August 2015, "YouTube Gaming" was launched.