AJA FS1 - Manual (Page 54)

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5.5 Downconvert AFD Default
This parameter selects how the FS1 will operate when parameter 5.2 “Downconvert
Mode” has been set to “Auto AFD” and no AFD codes are detected at the selected
input source (i.e., which default does it go to).
SD Aspect Ratio Conversion Illustrations—FS1
H Crop
Pillarbox
V Crop
14:9
Off
(no conversion)
Letterbox
4
3
4:3 Converts To These displays on 4:3
5.5 Downcvt AFD Dflt Description of Choices
Parameter Adjustments:
Hold Last (Default)
Letterbox
14x9
Anamorphic
Crop
Use the last AFD code detected and continue to use its aspect ratio selection until
a new AFD code is detected again in the SDI meta data.
When an AFD code isn’t present, switch the downconverter mode to Letterbox.
When an AFD code isn’t present, switch the downconverter mode to 14x9.
When an AFD code isn’t present, switch the downconverter mode to Anamorphic.
When an AFD code isn’t present, switch the downconverter mode to Crop.