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8-12. Setting Closed Caption
Caption1 (CC1)
CC1 is the primary caption service that synchronizes the captioning language with the
sound, used by most broadcasters. The captioning is displayed in the same language as
the program’s dialog.
Caption2 (CC2)
CC2 is the special non-synchronous caption service that does not need to be in sync with
the sound and may provide simplified captioning,which is usually delayed. CC2 is rarely
available and broadcasters use them only in special circumstances, such as when CC1
and CC3 are not available.
Caption3 (CC3)
CC3 serves as an alternate captioning service channel. The captioning is often a sec-
ondary language translation such as French, Spanish, simplified English or displayed at a
slower rate.
Caption4 (CC4)
CC4 is another special non-synchronous caption service that does not need to be in sync
with the sound and may provide simplified captioning, usually delayed. CC4 is rarely
available and broadcasters use CC4 only in special circumstances, such as when CC1 and
CC3 are not available.
Text1
Text1 is the primary text service used by broadcasters. Text1 usually displays information
at the bottom position and is used for a data service, generally not program related.
Text2
Text2 is the second text service used by broadcasters and is rarely available.
Broadcasters use Text2 only in special circumstances, such as when Text1 is not avail-
able.
Text3
Text3 is the third text service used by broadcasters and is rarely available. Broadcasters
use Text3 only in special circumstances, such as when Text1 is not available.
Text4
Text4 is the fourth text service used by broadcasters and is rarely available. Broadcasters
use Text4 only in special circumstances, such as when Text1 is not available.
