Datavideo SE-1200MU, Инструкция по эксплуатации

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The SE-1200 MU can support the following HD video standards: 1080i/50, 1080i/59.94, 1080i/60 and
720p/50, 720p/59.94, 720p/60.
4.4 SE-1200 MU Video Layers
The SE-1200 MU is a High Definition Digital Video Switcher and as well as mixing video sources and
embedding analogue audio, it has additional functions such as Picture in Picture (PIP), Chroma Key, Luma
Key and Down Stream Key (DSK).
Before attempting to use the SE-1200 MU’s PIP, Chroma, Luma and Down Stream Keying functions, it may
help to first understand the order of the video layers at the SE-1200 MU Program outputs.
The background video layer is used for transitioning between Preview and Program sources. This layer also
includes any selected wipe transitions. This layer can be hidden or partly hidden by the PiP, Keyer or DSK
video layers in front of it.
The
Key 1
and
Key 2
layers can be used for
PiP, Chroma, Linear
or
Luma Key
applications. The KEY video
signal (foreground) is shown in this layer and the FILL video signal is displayed in the background video
layer. If set up incorrectly, these key layers can stop the video behind being displayed.
The Picture in Picture (PiP) feature of the Key 1 & Key 2 layers can be used for displaying a smaller
secondary image in front of the background video layer. This smaller PiP image can be resized, cropped,
repositioned and even keyed by the user to avoid an important part of the background video layer being
covered by it.
The SE-1200 MU has four dedicated keyers,
Key1
,
Key2
,
DSK1
and
DSK2
. All four
keyers can be active simultaneously. Key 1 and Key2 can be set as Upstream or
Downstream keyers.
The Layer priority, or order, of
Key 1
and
Key 2
can also be changed by the user
using the Priority button in the Transitions Control area. DSK 1 & DSK 2 can only be
used as Downstream keyers. See the diagram above for an example of keyer
layering with the SE-1200 MU.
The Down Stream Key layers ( DSK 1 & DSK 2 ) are placed on top of all the previous layers. These layers are
typically used with Character Generator inputs for displaying titles, graphics, lower thirds, clocks and logos.
Datavideo offer several Character Generator products (additional purchase) such as TC-200, CG-250, CG-