12
timecodes and closed captioning, remain intact
(480i/576i video format only).
To configure ancillary data parameters:
1.
Press
MENU
.
2.
Press the
SYSTEM
Wipe Pattern button.
3.
Press
NEXT
until
Anclry
is displayed.
4.
Use the
Anclry
knob to select an ancillary data
parameters. You can choose from the following:
•
N Strip
— Removes ancillary data from the
video signal.
•
N Pass
— Passes ancillary data without
modification.
•
L Strip
— Removes ancillary data and the first
few lines of picture from the video signal.
•
L Pass
— Passes ancillary data and the first
few lines of picture.
Input BNC Configuration
Many video sources have an associated video source
that contains alpha (transparency) information. You
must configure the switcher to use the correct alpha
source. Once you associate a video and alpha
source, they are linked and used for Auto-Select
keying.
Alpha sources are designated as shaped or linear
(unshaped). Shaped sources convert partial
transparency to either fully transparent or fully
opaque, giving the video signal well-defined edges.
Linear (unshaped) sources use the full range of
transparency in the alpha channel to give smooth
transitions between transparent and opaque areas.
Use linear if you are unsure which setting to use.
For More Information on...
• Auto-Select keys, refer to the section “Keying
Overview” on page 25.
To associate video and alpha inputs:
1.
Press
MENU
.
2.
Press the
CONFIG
Wipe Pattern button.
3.
Press the
Input
knob to display the
Input
menu.
4.
Use the left knob to select the input you wish to
configure.
5.
Use the
Alpha
knob to select the desired input
that will provide the alpha (transparency) signal.
You can choose from the following:
•
None
— Do not use an associated alpha
signal.
•
Lin1
-
Lin12
— The selected input is used as
a linear (unshaped) alpha source.
•
Shpd1
-
Shpd12
— The selected input is
used as a shaped alpha source.
6.
If you are using standard definition sources, use
the
SD ASP
knob to select the aspect ratio of the
video signal. You can choose from the following:
• 16:9
• 4:3
For More Information on...
• fine-tuning the Auto-Select Key features, refer to
the section “Modifying Keys” on page 40.
Clean Feed
Clean Feed provides a second program output that is
derived from a different location than the standard
program output. Using the Clean Feed allows you to
Table 3 Vertical Ancillary Data
Video Format
Last Line of Vertical Ancillary Data
Normal Pass/Strip Long Pass/Strip
480i
19
21
576i
22
24
720p
25
25
1080i
20
20
4
2
3
1
Table 4 Default Alpha Channel Mappings
Input
Default Alpha Input
KM-H2500
5
6
KM-H3000
9
11
10
12
3
5
6
2
1