AJA Io4K - Manual (Page 30)

Io XT/4K v10.5r2 www.aja.com 30
Timing (Horiz and Vert)—these two pull-downs allow output timing adjustment with
reference to the Ref Video source selected. The Horizontal reference can be adjusted
by selecting a number of pixels (clocks) to offset. Vertical can be adjusted by
specifying a number of lines to offset.
Format Screen
The Formats screen shows the video format currently in use by the Io XT/4K framebuffer
(called the Primary Format) and allows you to change it. All throughout the Control Panel,
choices are always presented based on what Io XT/4K can do with the signals available
and the inputs/outputs selected. For example, on the Format screen, if the output or
inputs are a different format than the primary, then you’ll see an additional information
pane that allows you to view and edit the secondary format—including control over
whether up/down/cross conversion is employed.
Figure 27. AJA Control Panel, Formats Screen
Format Screen Settings
Video Format (Primary and
Secondary):
These pull-down menus show the currently selected formats. If you select an alternate
value in the Primary Format using the pull-down, it will change the format used by Io XT's
framebuffer. When a change is made via the Video Format pull-down or by right-clicking
or Control-clicking an icon and selecting a new format via a contextual menu, the block
diagram will change to reflect the new format. In the case of a Secondary Format, the
formats available can vary based on what the Primary Format is and the input signal
(frame rates of input sources limits the to/from conversion choices). The “Secondary