Operator`s manual

2–6 • Configuration CrossOver 6 / 12 User Manual (v4.0)
4. Use the Anclry knob to select an ancillary
data parameters. You can choose from the
following:
• N Strip — Removes ancillary data from the
video signal.
• N Pass — Passes ancillary data without
modification.
• L Strip — Removes ancillary data and the
first few lines of picture from the video
signal.
• L Pass — Passes ancillary data and the first
few lines of picture.
Input BNC Configuration
Many video sources have an associated video source
that contains alpha information. You must configure
the switcher to use the correct alpha source. Once
you associate a video and alpha source, they are
linked and used for Auto-Select keying.
Alpha sources are designated as shaped or linear
(unshaped). Shaped sources convert partial
transparency to either fully transparent or fully
opaque, giving the video signal well-defined edges.
Linear (unshaped) sources use the full range of
transparency in the alpha channel to give smooth
transitions between transparent and opaque areas.
Use linear if you are unsure which setting to use.
Inputs can also be assigned to external devices that
you are controlling from your switcher. Refer to the
Ross Video External Device Setup Sheet for your
device connection and configuration information.
For More Information on...
• Auto-Select keys, refer to the section “Keying
Overview” on page 3-4.
To associate video and alpha inputs:
1. Press MENU.
2. Press the CONFIG Wipe Pattern button.
3. Press the Input knob to display the Input
menu.
4. Use the left knob to select the input you wish
to configure.
5. Use the Alpha knob to select the desired
input that will provide the alpha (transparency)
signal. You can choose from the following:
• None — Do not use an associated alpha
signal.
• Lin1 - Lin12 — The selected input is used as
a linear (unshaped) alpha source.
• Shpd1 - Shpd12 — The selected input is
used as a shaped alpha source.
6. If you are using standard definition sources, use
the SD ASP knob to select the aspect ratio
of the video signal. You can choose from the
following:
• 16:9
• 4:3
For More Information on...
• fine-tuning the Auto-Select Key features, refer to
the section “Advanced Keying” on page 4-3.
Clean Feed
Clean Feed provides a second program output that is
derived from a different location than the standard
program output. Using the Clean Feed allows you to
remove particular keys without affecting the primary
program output. Typical applications are:
• Multilingual and live-to-tape productions
• Recording shows for later airing without overlaid
graphics
To configure Clean Feed:
1. Press MENU.
2. Press the SYSTEM Wipe Pattern button.
MENU
Table 2.4 Default Alpha Channel Mappings
Input Default Alpha Input
CrossOver 6
56
CrossOver 12
911
10 12
MENU