evertz 7700 - 4.6. Matte Configuration Items

7700 Multiframe Manual
7725DSK-LG / 7725DSK-LG-HD HD/SD Logo Inserter & Media Keyer
RCP OPERATION Revision 1.4 Page 4-21
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Warning: this function is not recommended but is provided as last resort. The
FORMAT function will completely remove all Media items, logos etc., from the
device specified in the MEDIA sub-menu. There is no undo provided.
4.8. MATTE CONFIGURATION ITEMS
The 7725DSK-LG has a black overlay matte that blacks out video and produces a letterbox effect on
the output video. The MATTE Setup menu is used to configure the black overlay matte that can be
applied over the program video. Table 4-3 shows the items available in the MATTE Setup menu.
Sections 4.8.1 to 4.8.3 provide detailed information about each of the sub-menus.
Matte On/Off
Selects whether the matte is being keyed over the video or not
Aspect
Sets the aspect ratio of the matte
Top
Sets the last line of the top matte in user defined aspect ratio mode
Bottom
Sets the first line of the bottom matte in user defined aspect ratio mode
Table 4-3: Top Level of the Matte Setup Menu
4.8.1. Turning the Matte On and Off
MATTE
Matte On/Off
Matte: Enable
Matte: Disable
This menu item is used to turn the matte on and off.
Select enabled to turn on the black matte overlay. This matte is on the top
layer of the keyer and will overwrite all the video on the respective lines of
the active picture. The matte does not blank the lines in the vertical interval.
Select disabled to turn off the black matte overlay.
4.8.2. Setting the Matte Aspect Ratio
MATTE
Aspect (user)
aspect: 1.33 *
aspect: 1.77
aspect: 1.85
aspect: 2.35
aspect: user
This menu item is used to set the aspect ratio of the matte.
There are three pre-defined aspect ratios available. When you select one of
these aspect ratios the 7725DSK-LG will automatically set the Matte Top
and Matte Bottom menu items.
In addition you can set a user defined aspect ratio by manually changing the
Matte Top and Matte Bottom menu items. (See section 4.8.3.)
*Please note that aspect 1.33 is only available on SD Units.