
www.aja.com
76
FS4 Frame Synchronizer/Converter v1.1
Figure 32. Upconvert Illustrations
7 Downconvert
Mode
These parameters select the type of down conversion the Video Processor performs on
the selected input. This parameter has an effect only when the input has a wider aspect
ratio than the output (HD > SD, 2K>HD). When down converting from 2K, the selections
do not precisely describe the resulting picture. For example, 14x9 is not precisely 14x9.
However, picture scaling is such that the visual effect closely resembles an HD-to-SD
downconvert.
NOTE:
Any Custom Size/Pos values (only available in Four Channel Mode) will be applied on top of
this settings EXCEPT when Downconvert Mode is set to Auto AFD.
Full Screen
4:3 Pillar
LB to Full
14:9 Pillar
Wide Zoom
1 6
9
4
3
4:3 Upconverts To
These displays on 16:9
Crop (default)
Anamorphic
14:9
Auto AFD
Letterbox
Image is cropped to fit new screen size.
HD image is converted to full-screen SD with a 16x9 aspect ratio
(anamorphic).
Image is reduced slightly with aspect ratio preserved. Black is
added top and bottom, and the left and right sides are cropped.
Automatically selects the best Downconvert mode based on the
input video's Active Format Description (AFD) code. If the input
video is not carrying an AFD VANC code, the Downconverter
defaults to the mode specified in the
Downconvert AFD Dflt
menu. With this selection any Custom Size/Pos settings and
Region Of Interest settings are ignored.
Image is reduced with black top and bottom added to image area,
with the aspect ratio preserved.