Synergy Series Operation Guide (v18)
Keying • 7–7
•
Press
AUTO SELECT
to choose an “Auto Select” key type, also known as a
linear
key.
With Auto Select keys, two signals are used to cut and fill the hole — a key (alpha)
signal and a fill signal. These signals originate from devices such as character
generators, still stores, DVEs and graphics systems.
When you choose an Auto Select key and press a key source (on the MLE’s
Key
Bus
), the switcher
automatically
selects both the alpha and fill signals. These
signals were
linked
together during the installation procedure. Refer to the section,
“
Setting Up Auto Keys
” in Chapter 6 of the
Synergy Series Installation Guide
for
details.
•
Press
CHROMA KEY
to select a “Chroma” key type. With a Chroma Key, the hole
is cut based on a selected color value (hue), rather than on a luminance value or an
alpha signal. The color is then electronically removed and replaced with
background video from another image.
Similar to Self Keys, the Chroma Key hole is filled from the
same video source
as
the key cutter, except that the fill is composed of all colors that remain
after
the
selected chroma key color is removed. The hole can also be filled with color matte.
Chroma Keys are typically used to key the weather caster over a weather map, or to
cleanly layer full-color images into a composite scene.
•
Press
PST PATT
to select a “Preset Pattern” key type. The hole is cut based on a
wipe that you select in the
Pattern Control
group (using pattern generator 1 or 2).
The pattern (which acts just like the
auto select
key’s alpha signal) is filled with
video from the
Key Bus
.
Of the four key types, Preset Pattern keys have
minor differences
between
Key 1
and
Key 2
:
~
Key 1
’s pattern generator is
full-featured
, but it is shared with the MLE’s
Wipe
Generator
. If you press
PST PATT
in
Key 1
, you cannot press
WIPE
in the
MLE’s
Transition
group. Similarly, if you have
WIPE
selected in the MLE’s
transition group and you press
PST PATT
, the
WIPE
button turns off.
~
Key 2
’s pattern generator is
not shared
with other functions. It is restricted to
the first six columns of wipe patterns, minus the circle. Matrix wipes are not
available.
Note
Unlike analog switchers, that require separate RGB signals to perform
a Chroma Key, with Synergy switchers you can Chroma Key on
any
key source
that you select on the
Key Bus
.
Operating
Tip
Pressing the button that is currently
lit
in the
Key Type Section
is a
quick way to
activate
the menu for that keyer for adjustment, when
both keyers are in use.
Note
In the
MLE Key
groups, the key type is chosen in the
Key Type
Section
, while the key source is selected on the
Key Bus
. In the DSKs,
the key type is selected by holding down the DSK crosspoint and
pressing the desired key type in any MLE keyer’s
Key Type Section
.
The key source is selected by holding down the DSK crosspoint and
pressing the desired source on the PGM/PST MLE’s PST bus. This bus
effectively doubles as a key bus for the DSKs.
AUTO
SELECT
CHROMA
KEY
PST
PATT
Содержание SYNERGY 4000DR-003
Страница 1: ...Ross Video Limited Operation Guide Volume I Software Issue 18...
Страница 10: ......
Страница 42: ...1 26 Introduction Synergy Series Operation Guide v18...
Страница 64: ...2 22 Control Panel Introduction Synergy Series Operation Guide v18...
Страница 132: ...4 54 Switcher Basics Synergy Series Operation Guide v18...
Страница 242: ...7 68 Keying Synergy Series Operation Guide v18...
Страница 280: ...8 38 Memory Functions and More Synergy Series Operation Guide v18...
Страница 310: ...GL 4 Glossary of Terms Synergy Series Operation Guide v18...
Страница 332: ...IX 22 Index Synergy Series Operation Guide v18...