How Closed Captioning Works
How Closed Captioning Works
Closed captioning can be extremely helpful in at least three different situations: 1) It has been a great boon to hearing-impaired television viewers. 2) It can also be helpful in noisy environments. 3) Some people use captions to learn English or learn to read. Closed captioning is embedded in the television signal and becomes visible when you use a special decoder, either as a separate appliance or built into a television set. The decoder …
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…broadcast and types the words into a special computer program that adds the captions to the television signal. The typists have to be skilled at dictation and spelling and they have to be very fast and accurate at typing. Other shows carry captions that get added after the show is produced. Caption writers use scripts and listen to a show's soundtrack so they can add words that explain sound effects.
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