Ross Synergy 100 MD, Руководство оператора

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7–6 • Keying Synergy 100 MD Operator’s Manual (v7.2 MD-S100)
With Auto Select Keys, two signals are used to cut and fill the hole. There is a Key
(alpha) signal and a fill (video) signal. These signals originate from devices such as
character generators, still stores, DVEs, or graphics systems.
When you choose an Auto Select Key and press a Key source (on the Key Bus ), the
switcher automatically selects both the alpha and fill signals. These signals were
linked together during the installation procedure. Refer to Chapter 7 “ BNC
Configuration and Check ” of the Synergy 100 MD Engineering Manual for
information on assigning a Key alpha to a video input.
In addition to these buttons, there are two buttons used as hotkeys for your favorite Auto
Select Keys originating from character generators, still stores, DVEs, or another desired
source.
• Press
CHAR GEN1
to select your most frequently used Auto Select Key, without
having to hunt for it on the Key Bus . When pressed, the Key type and Key source
are automatically selected,
KEY MEM
is turned
On
and Key modifiers are turned
Off
to provide a clean CG Key. Refer to the section “ Programming a Favorite
CG ” on page 7-40 for more information.
• Press
CHAR GEN2
to choose an alternate frequently used Auto Select Key. This
button works in the same manner as
CHAR GEN1
.
2. Key Modifier Section
The buttons and knobs in the Key Modifier Section allow you to modify the Key that is
currently selected.
• Press
KEY INVERT
to invert the polarity of the selected Key signal. For example,
if a Self Key source has white letters on a black background, the white letters
normally cut the hole. When
KEY INVERT
is pressed, the polarity of the signal is
reversed and the black background cuts the hole. This function is often used to Key
black text that is printed on a white background.
• The
KEY MEM
(memory) function applies to Auto Select Keys only. This function
allows you to store and recall one set of clip and gain settings per crosspoint .
The KEY MEM button turns on automatically when you press AUTO SELECT
and choose an Auto Select Key source on the Key Bus . This function recalls the
settings for the Key from memory. With the button lit, clip and gain settings are
locked. If you toggle the
KEY MEM button Off , the clip and gain setting will be
unlocked , allowing you to make temporary adjustments to the settings of the linear
Key. Toggling the button back On will restore the default settings for the Key
source from memory.
Although the default clip and gain settings were set during the switcher installation
process, you can also use the
KEY MEM button to store new default values for the
selected linear Key source. Refer to the section “ Performing an Auto Select Key ”
on page 7-10 for more information.
• Press MASK to activate the Mask controls. These controls allow you to selectively
eliminate unwanted portions of a Key signal, similar to the “crop” function found
on many DVEs. Using an adjustable box pattern, you can size and position the mask
to hide the top, bottom, left or right edges of the Key.
Note
All Key types can be inverted, except for Squeeze & Tease MD boxes.
CHAR
GEN1
CHAR
GEN2
KEY
INVERT
KEY
MEM
MASK