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interconnect cables employing three-pin XLR
connectors.
Aspect Ratio The ratio of the video display’s width to its height.
The two common aspect ratios used for video
displays are 16:9 (1.78:1), also known as
“widescreen”, and 4:3 (1.33:1), also known as
“standard”.
CRT The Cathode Ray Tube is the original analog
technology used in video displays. It is still used
today in both direct-view displays as well as front
and rear projection systems. Although the
maximum light output levels are limited,
CRT-based displays are unrivaled for their
smoothness and ability to accurately reproduce fine
gradations in dark areas of the image.
Component A video signal using three separate video
components, for example RGB or YPbPr.
Component signals may be either Interlaced or
Progressive.
Composite An Interlaced video signal that combines brightness
(black-and-white) information together with color
information. Performance is reduced compared to
Component video or S-Video, as the video signals
cannot be perfectly separated again as required by
the display device.
Compressed Audio To allow storage of more video information on a
DVD, the digital audio soundtrack is compressed to
take up less room. The PCM digital audio data is
compressed by discarding data that is deemed to be
of less importance. Various companies have
developed proprietary schemes for reducing the
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