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Archive for the "Captioning" Topic

Captioning Formats for Videos

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Timed Text Markup Language vs Web Video Text Track What are Timed Text Markup Language (TTML) and Web Video Text Track (WebVTT)? How do we benefit from these captioning formats? Will these ever merge together, or will they evolve separately over time? Why does it matter which captioning format we use when creating closed captioning for videos? A variety of captioning file formats exist, all of which differ slightly in syntax. These different formats are used for captioning, subtitling, karaoke, etc. in videos for both TV and on the web. Of the many captioning file formats that are available, TTML… Read More

Captioning Support in Internet Explorer 10: An Accessibility Breakthrough

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Guest blog by Thomas Logan and James Herndon www.equalentry.com If you frequently watch video content on the web, you may have noticed the recent increase in the availability of captions. Sometimes they are part of the video itself, while other times they are created by voice recognition software during playback. In either scenario, the increased visibility of captioning technology is a result of The Twenty-First Century Communications and Video Accessibility Act, which requires VoIP providers and manufacturers to make their services and equipment more accessible to web users with disabilities. Another reason for the increased availability of captioning support is that… Read More

New Internet Closed Captioning Requirements Now in Effect

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The following information is reposted from the FCC: On January 12, 2012, the FCC adopted rules requiring captioned programs shown on TV to be captioned when re-shown on the Internet.  These rules implement provisions of the Twenty-First Century Communications and Video Accessibility Act of 2010 (CVAA). Starting September 30, 2012, pre-recorded programs shown on TV with captions that are not “edited for the Internet” (and are newly added to a distributor’s inventory of TV programs on the Internet) must be captioned when shown on the Internet.  A program is not “edited for the Internet” if the TV version has not… Read More

Closed Captions and Media Player Compatibility

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Section 508 requires that all multimedia (audio and video) provide synchronized captions for people who are deaf or hard of hearing and synchronized video description for people who are blind or visually impaired. However, there are many variables in caption format, video format, video encoding, and media players that are used for multimedia. There is no one caption solution that will work in all situations. What are closed captions? Captions are the text placed adjacent to multimedia content that provides a visual equivalent to the audio track. In addition to a transcription of the audio dialog, captions usually indicates the… Read More

U.S. Captioning Requirements

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Like subtitles, captions display spoken dialogue as printed words on a television screen or monitor. Captions, unlike subtitles, are carefully placed to identify speakers, sound effects, music and laughter to allow full participation for audiences who are deaf or hard of hearing in a media presentation. Captions can be open or closed: open captions display the transcript on-screen as part of the video, whereas closed captions are hidden as data within the video signal requiring that they be decoded to be displayed on-screen and are user-selectable or are displayed on a separate screen. To produce captions, caption writers use software… Read More

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