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Closed captioning is a process which converts the audio portion of a television
program into written words which then appear as sub-titles on the television screen.
Closed captions allow viewers to read the dialogue and narration of television programs.
Captions are the subtitles of the dialogue and narration of
television programs. For prerecorded programs, program
dialogue can be arranged into captions in advance. Its
possible to caption a live program by using a process
called real-time captioning, which creates captions
instantly.
Real-time captioning is normally done by professional
reporters using a machine shorthand system and computer for translation into English.
Captioning is an effective system for the hearing-impaired, and it can also aid in
teaching language skills.
• The picture above shows a typical caption.
• Not all TV broadcasts include closed caption signals.
• Sometimes TV stations broadcast four different caption signals on the same channel.
By selecting From CC 1 to CC 4 , you can choose which signal you view. CC 1 is
usually the signal with the captions, while Another mode might show demonstration or
programming information.
• Your TV might not receive caption signals normally in the following situations.
1. Poor reception conditions are encountered:
• IGNITION:
Picture may flutter, drift, suffer from black spots, or horizontal streaking.
Usually caused by interference from automobile ignition systems, neon
lamps, electrical drills, and other electrical appli-ances.
• GHOSTS:
Ghosts are caused when the TV signal splits and follows two paths.
One is the direct path and the other is reflected off tall buildings, hills or
other objects. Changing the direction or position of the antenna may
improve reception.
• SNOW:
If your receiver is located at the weak, fringe area of a TV signal, your
picture may be marred by small dots. It may be necessary to install a
special antenna to improve the picture.
2. An old, bad, or illegally recorded tape is being played.
3. Strong, random signals from a car or airplane interfere with the TV signal.
4. The signal from the antenna is weak.
5. The program wasn’t captioned when it was produced, transmitted, or taped.
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