Specifications

Playback Timing (greyed-out when in Input Passthrough)

Genlock (Freerun, Ref In, Input 1, or Input 2)—Selects how Io Express will synchronize program

video:

Freerun: in this mode, Io Express generates video without an external reference source

Ref In: directs Io Express to use the Ref Video source for sync (usually an analog black

burst video signal)

Video: directs Io Express to use whichever video input source has been selected in the

Inputs tab window for sync

Note: When the Io Express goes into capture mode, the Genlock mode automatically

switches to Video In.

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 Format screen shows the video format currently in use by the Io Express framebuffer

(called the Primary Format) and allows you to change it. Throughout the Control Panel,

choices are always presented based on what Io Express can do with the signals available and

the inputs/outputs selected. For example, on the Formats screen, if the output or inputs are a

different format than the primary, you’ll see an additional information pane that allows you to

view and edit the secondary format—including control over whether down-conversion is

employed. In the figure below, the SDI input (Secondary Format) is being down-converted to

the Primary Format.

Format Tab and Pulldown Menu

Formats menu