3. General
Fader
See T-Bar.
GUI (Graphical User Interface)
A term that des cribes a status display based on graphics and icons, rather than strictly on numbers and letters.
Input
The actual input connector of a processor.
Key
An electronic (and visual) pr ocess whereby one imag e is electronically s uperimposed over another source or background. Keys are
typically used for titles, logos, and banners.
Keyframe
In a PIP “move,” a keyframe is a point where a n action or chang e occurs. For example, when a PIP moves from the upper right
corner to full screen, keyframe 1 is the upper right position, and keyframe 2 is the full screen position of the P IP.
Key Fill
The video which fills the hole cut by the keying circuitry. Typically, switchers pr ovide a variety of choices f or the fill source — internal
mattes, external video, or "self" fill are several examples.
Key Mask
A key modification system that protects a portion of the foreground video from
being keyed, using the s witcher’s internal pattern
system .
Key Signal
Also kn o w n as Key Source. The signal that electronically c uts the hole in the background v ideo signal. K ey signals typically originate
from external inputs such as character generators or cameras.
Layer
An image d isplay elem ent (such as a PIP, Key or B ackground) that has an as sociated visual priority — either in front (or in back) of
another layer.
Linear Key
Linear key is a keying mode in which the edges of an ti-aliased key sources (such as character generators) are reproduced clearly.
Typically, two separate signals are required from a linear key source: a cut and a fill.
Menu
A term us ed to describe buttons and functions on the high
-resolution color LCD touch screen.
Mix
Also known as a Dissolve. A transition b etween two video sources in which one source fades out as the other fades in.
Mixer
Circuitry that enables you to transition (and s cale) PIPs and Keys over a background.
MVR (Multiviewer)
A video output that previews sources, bac kgrounds, des tinations and A uxiliaries in scaled down windows with a border and a text.
NTSC
National Television Standards Com mittee. The oldest standard for color p icture broadcasting. N TSC is a standard de finition format
that operates at a frequency of 60Hz, with 525
lines, 60 fields and 30 frames per second.
PAL
Phase Alternating Line. PAL is the NTSC equ ivalent TV standard in Europe. PAL is a standard definition format that operates at a
frequency of 50Hz, with 625 lines, 50 fields, and 25 frames per second.
PGM (Program)
The s witcher ’s main output signal.
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R5905948 EVENT MASTER DEVICES 17/07/2017
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