KayakDD - Digital Production Switcher
A useful configuration is to have sources normally used for backgrounds (e.g. VTRs)
mapped to unshifted buttons, and sources normally used as keys (e.g. character
generators) mapped to shifted buttons. Then you can then set all the background
buses to an unshifted preference, and all the key buses to a shifted preference. All
normal source selections can then be made without having to use the shift modifier
buttons.
It is also possible to have a different assignment for background and key buses.
2.7
The Mix/Effects (M/E) Stage
Each M/E of the KayakDD system can create a composite of two or more pictures. It
includes multiple source selection buses and provides transition (mix and wipe) and
keying capabilities on the selected signals.
The M/E can be organized with the keying circuitry separate from the mixing circuitry,
which permits Effect Send capabilities (see 2.7.3 below for more information).
A simple basic M/E used in a typical switcher will be used as an example in the
following discussion. The KayakDD M/E has added capabilities, but the basic
principles described here will apply.
Figure 5
Simplified Mix Effects (M/E) Subsystem
The basic M/E shown in
11 has an A and a B background bus. These buses
select the background video signals sent to the output of the M/E.
enerally the source on the background A bus is the cu
G
rrent background output, and
e source on the background B bus is the background video that will be used next.
uring most transitions, portions of both backgrounds are output simultaneously. The
eyers in the M/E allow the inclusion of additional material over the background. Wipe
generators also exist, which create patterns used by the mixer for wipe transitions, or
used by the keyers to modify the signals it sends the mixer.
The processed signal in an M/E is then sent to an M/E output, typically program or
preview (or can be selected as input in the second M/E).
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D
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User Manual
Содержание GRASS VALLEY KayakDD-1
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Страница 186: ...KayakDD Digital Production Switcher Figure 115 Typical Wipe Switching Matrix and Point of Use 186 User Manual ...
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