LC2000/LC2000-IQ/LC4000/LC4000-IQ
Channel Operation Menus
Issue 1 Rev 6
Page 62
© 2015 SAM
8.6 ARC
The Aspect Ratio Control (ARC) menu enables you to determine the aspect ratio of a picture
from a range of options, or to adjust the size and position of the picture manually.
8.6.1 Sync Mode
The Sync Mode control disables the ARC feature when input and output formats are the
same. This gives the lowest latency.
8.6.2 Signaling Detected
Signaling Detected shows the status of any aspect ratio signaling detected at the input.
8.6.3 Sidebar Keying & Output Crop
The Sidebar Keying & Output Crop functionality provides post ARC cropping of the output
picture and allows a second video picture to be keyed into the cropped area. When output
cropping is enabled, the actual size of the output picture does not change, just how much of
the active picture remains visible. The portion that is “cropped” is either default black (in
Output Crop mode) or is replaced by a secondary video picture (in Sidebar Key mode) – the
“cropped” portion still forms part of the output picture.
For more information about sidebar keying, see the
Sidebar Keyer Application Note
under the
“Support” tab at:
www.snellgroup.com/products/conversion-and-restoration/conversion/kudospro/
8.6.3.1
Mode
•
Off:
Disables both Output Crop and Sidebar Keying.
•
Output Crop:
Crops the output picture. In this mode the cropped area is black by
default. The cropped area is defined using the Output Crop Position controls. See see
section 8.6.3.3.
•
Sidebar Key:
Keys a second video picture into the cropped area, as defined using
the Output Crop Position controls (see see section 8.6.3.3). When selected, the
source of the second video picture is becomes available in the Sidebar Key Source
menu. See “Sidebar Key Source” on page 63.
