7800/7700 MultiFrame Manual
7812UDXD Series 3G/HD Up/Down/Cross Converter with Simultaneous Dual Format Outputs and AES I/O
Page - 68
Revision 1.1.1
6.20. SD APERTURE CONTROL TAB
The precise definition of “active region” for an SD input is sometimes unclear. This is due to the fact that
SD signals have been defined differently in various standards. The SD Aperture control allows the user to
set the exact pixels and exact lines that are used to define the
SD Clean Aperture
and the
SD Production
Aperture
. Both the
Clean Aperture
and the
Production Aperture
are independently definable. The user
may define whether to use the
Clean Aperture
or the
Production Aperture
to determine the pixel aspect
ratio for conversions.
Figure 6-22: SD Aperture Control Tab
6.20.1. SD Aperture Control
6.20.1.1. Aperture Aspect Ratio Source
The
Aperture Aspect Ratio Source
control selects whether the
Production Aperture
or the
Clean
Aperture
is used when converting input signals.
Production
Selects the
Production Aperture
to be used when converting input signals.
Clean
Selects the
Clean Aperture
to be used when converting input signals.