AJA UDC - Manuale (Pagina 11)

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11 AJA Up/Down/Cross Mini-Converter
Genlock: Determines the timing reference for the UDC video output. The selected
reference is displayed to the right of the Genlock pull-down. These are the choices:
Auto (default): Auto uses the reference input if present, or locks to the SDI input
if no reference is present or if the reference is present but is not compatible.
Lock to Input: Always locks to the SDI input.
Lock to Reference: Always locks to the Reference input – if the supplied
reference is not compatible, reverts to Free Run.
Free Run: Always operates in Free Run mode.
Up Convert: Determines the mode when converting from SD input video to an HD
output video format. This selection is only used when the UDC module is in Remote
mode (DIP switch #1). In Local mode, the up convert mode is determined by DIP switch
#7. These are the choices:
4x3 Pillar: Produces 4x3 image at center screen with black sidebars.
14x9 Pillar (default): Produces 14x9 image, zoomed slightly to fill a 14x9 image
with black sidebars.
Full Screen: Produces anamorphic full screen display.
LB to Full Image: Produces image zoomed to fit the full screen (letterbox).
Wide Zoom: Produces an image sized to fit a 16x9 screen using a combination of
zoom and stretch. (This can introduce a small aspect ratio change.)
Down Convert: Determines the mode when converting from HD input video to an SD
output video format. Note that this selection is only used when the UDC module is in
Remote mode (DIP switch #1). In Local mode, the upconvert mode is determined by
DIP switch #8. These are the choices:
Crop (default): Image is cropped to fit new screen size.
Anamorphic: HD image is converted to full-screen SD with a 16x9 aspect ratio
(anamorphic).
14x9: Image is reduced slightly with aspect ratio preserved. Black is added top
and bottom, and the left and right sides are cropped.
Auto AFD: 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 crop.
Letterbox: Image is reduced with black top and bottom added to image area,
with the aspect ratio preserved.
Aspect Convert: Determines the mode when converting from SD input video to an SD
output video format. There is no DIP switch equivalent for this control. The setting is
saved in nonvolatile memory in the module and used for all subsequent operation.
These are the choices:
Off (default): The input image is copied to the output with no scaling.
Letterbox: The input frame is scaled vertically to a 16x9 "letterboxed" size
(anamorphic to letterbox conversion).
H Crop: The input frame is scaled horizontally to 16x9, then center-cropped
(anamorphic to center crop conversion).
Pillarbox: The input frame is scaled horizontally to make a pillarbox output (4x3
to anamorphic conversion).
V Crop: The input frame is scaled vertically to make a vertically cropped output
(letterbox to anamorphic conversion).
14x9: The input frame is scaled horizontally and vertically as a compromise
between H Crop and Letterbox (anamorphic to 14x9 conversion).