GRASS VALLEY zodiak, User Manual

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436 Zodiak User Manual
Glossary
Component Video
A video signal that keeps color and lumi-
nance information separate. RGB; Y, R-Y, B-Y;
and Y, Cr, Cb are examples of component
video.
Composite Video
An encoded video signal that combines color
information with luminance information.
NTSC, PAL, and D-2 are examples of com-
posite video.
Compositing
Combining two or more video signals to-
gether into one output signal.
Control Signal
A signal used to perform an alteration or
transition of video signals. For example, con-
trol signals are used for keying, masking,
and wipe transitions.
Control Surface
The set of controls available to a single oper-
ator. These controls may reside on separate
but related control panels.
Cross Fade
See Mix .
Crosspoint
An electronic switch, usually controlled by a
button on the panel, that allows video or au-
dio to pass when the switch is closed.
Cut
An instantaneous switch from one picture to
another. Switching circuitry allows cuts only
during the vertical interval of the video sig-
nal to prevent disruption of the picture.
VDR (Video Disk Recorder)
A video recorder and playback device using
hard disk storage in place of video tape.
Delegate
To assign panel controls to a particular oper-
ating function. Some panel controls (buttons,
knobs, joystick) can affect more than one
function. The operator can choose an alterna-
tive function by delegating the panel con-
trols to that function (typically by pressing or
holding down a panel button).
Deserializer
A device that converts serial digital informa-
tion to parallel.
Dissolve
See Mix .
DPOP (Double Press Open)
Pressing a control panel button twice rapidly
to open a related menu. On the Zodiak sys-
tem, buttons supporting DPOP are labeled
with a graphical indicator.
Effect
A setup of panel controls specifying the
sources involved and any processing applied
to those sources. Effects can be learned
(saved) and recalled by the E-MEM effects
memory system.
Effect Transition
Recalling an E-MEM effect so that a transi-
tion is automatically performed at the start of
the recall.
Effects Processor
The portion of a switcher that performs mix-
es, wipes and cuts between background
and/or effects key video signals.
E-MEM Effects Memory
A feature that permits control panel setups to
be stored for later recall.