Grass Valley Kayenne XL Package v.7.0.4 - Manual (Page 40)

38 Kayenne XL Package — User Manual
Section 2 — Concepts
Other Wipe Pattern Generator Uses
Wipe pattern generator circuitry can be used for purposes that do not
involve transitions. Each Kayenne XL Package M/E has the two complex
wipe pattern generators described above, and each of its four Keyers also
has a simple pattern generator and a box pattern generator, making a total
of six wipe generators. These pattern generators can also be used for Preset
Pattern, Masking, and Matte Washes.
Preset Black
Preset Black is a special type of transition, where the picture transitions to
black, and then transitions out of black to the new picture. Preset Black is
really two transitions, one to and one from black, and so requires two oper-
ator commands to complete. Preset Black can be used with any transition
type (cut, mix, or wipe). The entire picture goes to black, even if all the tran-
sition elements involved in the picture were not selected.
Fade to Black
The Fade to Black control in the DSK enable the Program output of the
switcher to be brought down to black at a predetermined transition rate.
Transition Rate
Cut transitions are instantaneous, but mix and wipe transitions have dura-
tions.
Transition durations can be set in advance to a specific transition rate, and
be initiated by pressing a button on the control panel. It is also possible to
manually control transitions using a lever arm.
On the Kayak HD system, one transition rate can be assigned to the main
transition of the M/E. This type of transition can be controlled by that
M/E’s lever arm. Each of the four keyers on the M/E can also be assigned
its own transition rate, initiated with a separate
Key Mix button.
Flip Flop Background Buses
At the completion of a transition, the background buses swap their source
selections (flip-flop). This makes the upper bus always act as the on-air bus,
and the lower bus act as a preset bus. The operator can reliably setup the
next source on the lower bus without disturbing the source selected on the
on-air upper bus.
For example, if a transition begins with source 1 on Background A and goes
to source 2 on Background B, as soon at the transition to source 2 completes,