Barco S3 User Manual page 34

3. General
Fader
See T-Bar.
GUI (Graphical User Interface)
A term that describes 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) process whereby one image is electronically superimposed 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 an action or change 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 PIP.
Key Fill
The video which fills the hole cut by the keying circuitry. Typically, switchers provide a variety of choices for 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 switcher's internal pattern
system.
Key Signal
Also known as Key Source. The signal that electronically cuts the hole in the background video signal. Key signals typically originate
from external inputs such as character generators or cameras.
Layer
An image display element (such as a PIP, Key or Background) that has an associated visual priority — either in front (or in back) of
another layer.
Linear Key
Linear key is a keying mode in which the edges of anti-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 used to describe buttons and functions on the high-resolution color LCD touch screen.
Mix
Also known as a Dissolve. A transition between two video sources in which one source fades out as the other fades in.
Mixer
Circuitry that enables you to transition (and scale) PIPs and Keys over a background.
MVR (Multiviewer)
A video output that previews sources, backgrounds, destinations and Auxiliaries in scaled down windows with a border and a text.
NTSC
National Television Standards Committee. The oldest standard for color picture broadcasting. NTSC is a standard definition 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 equivalent 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 switcher's main output signal.
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