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CLOSED
CAPTION
FUNCTION
CAPTIONS
A caption is a printed version of the dialogue or sound effects of program. Captions can
be prepared for any type (example. new reports, presidential speeches, sports, drama or
live programs etc.) of television program. Because most "IV programs are pre-recorded,
captions can be produced
in advance allowing caption editors to proofread
for correct
captions. It is also possible to caption by using a process called "real-time captioning".
Real-time
captioning
is usually done by professional
reporters
by using a machine
shorthand system and a computer which translates their shorthand into English words.
Closed Captions are hidden in the TV broadcast signals, and cannot be seen without a
decoder similar to that which is built into your new television
set. The picture below
shows a typical caption.
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NOTE:
Some TV programs
may not be broadcast
with closed caption signals, and
therefore your "TV will not be able to display captions.
Your television
is designed
to provide error free c(osed captions
from high quality
antenna, cable and VCR signals, but poor quality signals are likely to result in caption
errors or no captions at all. Common signal conditions which will normally cause caption
errors are listed below:
•
Automobile ignition noise
•
Electric motor brush noise
•
Weak snowy picture
•
Multipath signal reception displaying picture ghosts or airplane flutter
•
Poorly recorded VCRTape
•
Poorly tuned VCR channel recording
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