FOR-A HVS-12ROUA, Installation And Operation Manual

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5-7. Key Adjustments
How the key and background video are mixed together is adjusted using the parameters below.

FAM (KEY-SOURCE/INSERT menu)
When this is set to ON, the keys are combined using an additive mix. When signals with the
same shape are being used for key source and key insert, setting the FAM parameter to ON
enables reduction of the darkness on the key edge. Follow the procedure below to set the FAM
to ON.

TRANSPARENCY (KEY-SOURCE/INSERT menu)
Key transparency can be set. Increasing the value makes the background appear more
transparent.

GAIN and CLIP (KEY-SOURCE/INSERT menu)
CLIP and GAIN are used to adjust how the key cut in the background is made and how the
foreground (key insert) and background signals are combined together. This is done by setting
the GAIN and CLIP parameters in each keyer menu.
First, adjust the clip to determine a rough key level where the background will be cut. Next,
adjust the gain to adjust the degree of blurriness of the key edge section. Then, repeat the
process of determining the clip again and adjusting the gain, and then determine the degree of
key and background combination by viewing the screen.

KEYER MODE-GAIN (MU SETUP-MODE menu)
Processing type of the keyer gain clip can be set. Select the GAIN type at KEYER MODE - GAIN
section in MU SETUP-MODE menu. Then press ENTER in the keypad to confirm the setting.
Parameter Setting Description
KEYER
MODE
GAIN
TYPE1 This applies gain based on the clip value (default setting)
TYPE2 This cuts the KEY signal up to the clip value, and then applies the gain
NOTE
Note that CLIP, GAIN and FAM key settings will not be saved to Event Memory data, if
INPUT (default setting) is set for KEYER MODE-SET of the MU SETUP - MODE menu.
These setting data will be included with the system data. If you want to save the data to
the Event Memory as a keyer data, change the setting to KEYER from INPUT.
KEY1(1/6) SOURCE/INSERT
KEY
TYPE
BUS
GAIN
1.0
TYPE
BUS
KEY SIGNAL
CLIP
50
SIGNAL
IN01
TRANSP
0.0
SIGNAL
IN02
RATE
30
INVERT
OFF
TRANSITION
LIMIT
OFF
FAM
OFF
LEVEL
100.0
INSERT SOURCE
KEY signal
KEY signal after clip
KEY signal after gain
Video Level=0
Clip Level
TYPE1 TYPE2