Ross Synergy 2 SD, Installation Manual

Page: 146 / 414

6–14 • BNC Configuration and Check Synergy Series Installation Guide (v18)
levels, giving the key a soft edge. Unshaped Key alphas can also be consider
true linear alphas. Key alphas are set as unshaped by default.
~
Shaped
— Select
Shaped
to have the switcher perform an additive Key .
With a shaped Key, the Key alpha cuts a hole based on the monochrome value
of the alpha. Shades of grey are translated into either white or black, giving the
Key a hard edge. Shaped alphas are sometimes used with Character Generators
to cut very precise holes for the fill.
This completes the procedure for setting up an alpha input. Refer to the section “ Checking Keys ” on
page 6–21 for instructions on verifying that each mode assignment is correct.
Setting Up Auto Keys
The BNC Auto Key Setup Menu allows you to associate alpha (Key) signals with their primary (fill)
video inputs, for example, associating CG Fill with CG Alpha , or DVE 1 Fill with DVE 1 Alpha .
This association completely simplifies the Keying process on the switcher. When you punch up a key
source on the Key bus, its alpha and fill are automatically selected.
Use the following procedure to set up an Auto Key:
1. Navigate to the BNC Menu 1-3 as follows:
• Press HOME B MORE B Setup B Installation B BNC .
2. Press Auto Key Setup to display the BNC Auto Key Setup Menu .
BNC — Auto Key Setup Menu
3. Use the BNC knob to select the BNC with the input video signal that you want to use as
the Fill for the Auto Key.
4. Use the Alpha knob to select the BNC with the input video signal that you want to use
as the Key Alpha for the Auto Key. For example:
• Match CG Fill (12) with CG Alpha (42) .
• Match DVE 1 Fill (13) with DVE 1 Alpha (43) .
• Match VTR 1 (5) with BLACK .
This completes the procedure for setting up an Auto Key.
Operating
Tip
During the procedure, refer to the
Auto Key
column in your Input
Worksheet . The alpha input numbers will be entered on the BNC
Auto Key Setup Menu for each associated fill video signal connected
to the frame.
Note
Select
BLACK
for inputs with no associated alpha. This is the default
setting.