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INTRODUCTION
7
!!
I
NTRODUCTION
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MP3
M
– MPEG-1 Layer III audio. This is a compressed audio format that allows the recording
of many hours of music on a single CD.
MPEG – An abbreviation for Moving Picture Experts Group, the
!ommittee of experts from
the audio, video, and computer industries involved in setting standards for compression of
moving images.
NTSC
N
– An abbreviation for National Television System Committee and the label for its !
video format standard used for televisions in the U.S. and other countries.
PAL
P
– An acronym for the Phase Alternate Line video format used extensively in Western
Europe.
Pan & scan – The technique of reframing a picture to conform to a different aspect ratio by
cropping parts of the picture. DVD-video players can use the horizontal offset encoded with
the video on certain DVDs to automatically pan and scan widescreen video to a 4:3 ratio.
PCM – An abbreviation for Pulse Code Modulation. A common form of digital audio signal.
Progressive Scan – A video format that displays all lines of the picture frame in a single pass
and refreshes the TV image 30x/sec. Not compatible with all video displays.
PVR – An abbreviation for Personal Video Recording. Sometimes used interchangeably with
DVR for Digital Video Recording but may include non-digital technology, as used in VCRs.
RF remote
R
– A remote control that transmits commands to a device using radio frequency
(RF) signals, which have the ability to penetrate walls, unlike the infrared (IR) signals used by
many remote controls.
RDS – A system that displays radio broadcast station and programming information. This !
feature is available on European systems only.
SACD
S
– An abbreviation for Super Audio Compact Disc, used for high-resolution digital audio
storage on CD-sized discs. New Bose
®
LIFESTYLE
®
systems play the CD-compatible portion
of such discs, identified by the CD disc logo on the front of the disc.
SCART – A type of jack commonly found on consumer electronics products manufactured
for use in Western Europe.
SCMS – A system for preventing second-generation digital copies of copyrighted audio
material. A digital recorder equipped with SCMS will record digitally from another source, but
that recording cannot then be used as a source for a second-generation recording.
Screen ratio – The dimensions of the video display on a television, which can vary from !
4:3 standard to 16:9 widescreen. Also called “letterbox,” widescreen display leaves a black
band above and below the picture on traditional TVs. This does not occur on widescreen TVs.
Subtitles – Text that appears at the bottom of the screen during video playback, and which
may differ from the language of the on-screen dialog.
S-video – Also called Y/C. A video signal that separates the brightness (black and white) and
the color information. S-video provides significantly higher resolution than composite video,
but not as high as from component. This type of connection is compatible with many televi-
sions and other video components, and requires use of an S-video cable.
T
Tel etex t – An information retrieval service provided by television broadcast companies in
Europe and some other countries, not including the U.S.
Video CD
V
– A Compact Disc (CD) that contains a video component.
Videostage
®
5 – Bose proprietary decoding circuitry that provides five-channel surround
sound performance from varied media – VHS tapes, stereo CDs, even mono TV programs.
Y
YPbPr – A component analog video signal containing one luminance and two chrominance
components. Also referred to as YUV or Y, B-Y, R-Y.