AJA IoXT - Manual (Page 6)

Io XT v10.4 www.aja.com 6
• Dynamic RT Extreme hardware acceleration
• Broadcast quality hardware-based 10-bit SD aspect ratio conversion (anamorphic to
letterbox, etc.)
• 16-Channel Embedded SDI audio
• Eight channels analog audio output (using Tascam-style DB25-type cable)
• Front panel LED VU meters and Headphone output w/level control
• Reference In/LTC In (selectable)
• LTC Output
• RS-422 control via 9-pin
• Rugged Chassis, Small Size
• 12V DC, 4-pin XLR Power (AC adapter included)
Broadcast-Quality
Conversion
Io XT features hardware-based full 10-bit broadcast quality motion adaptive SD to HD
up-conversion, HD to SD down-conversion and HD to HD cross-conversion.
The quality of the conversion features found in the Io XT is virtually identical to AJA's
award winning stand-alone converter products used throughout the post production
market. The Io XT built-in up converter uses a a full 10-bit path, fully motion adaptive de-
interlacing, and large multi-point digital interpolators. Down-conversion uses large
multi-point digital interpolators, anti-alias filtering and interpolation.
Cross-conversion is high-quality hardware-based, providing capability to streamline
dailies and offers true broadcast picture quality in realtime. Because these functions are
in hardware, they are available full time, all the time—with no CPU load. Such
conversions are useful for cost effective monitoring, making standard definition dubs of
an HD project, or up-converting from a standard definition project to an HD deliverable.
About Primary &
Secondary Video
Formats
In Io XT operation, the Primary Format is the media format written to disk and used in
your project. The Secondary format is that which may be input for capture or output from
Io XT to VTRs or other devices. Down-conversion may be applied to an input or on
output.
The Primary Format menu allows you to select the video format used in your current
project.
NOTE: In some cases the application you use with the Io XT will automatically set the Primary
Format, overriding the user’s selected primary format in the AJA Control Panel.
Conversion is performed based on the Primary or Secondary Format settings.
Io XT can down-convert the input format (when designated as a Secondary Format
input) to the selected Primary Format. Or you can set a Secondary Format output that will
be a down-conversion of the Primary Format.
NOTE: When converting an Input to the Primary Format, select the Secondary Format option that
has (I), for input only, appended to it. Conversely, when converting an Output from the
Primary Format, you must select an output signal with (O) for output only.
Convert Mode Convert Mode allows selection of a mode for conversion between High-definition and
Standard-definition formats. The choices offered depend on the AJA capture device
present and the Primary and Secondary format chosen. Io XT supports up-, down-, and
cross- conversion plus SD-to-SD aspect ratio conversions.
All conversions use AJA 10-bit hardware inside the Io XT.