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Glossary
Analogue:
Sound that has not been
switched into numbers. Analogue sound
varies, while digital sound has specifi c
numerical values. These sockets send audio
through two channels, the left and right.
AUDIO OUT sockets:
Red and white
sockets on the back of the unit that send
audio to another system (TV, Stereo, etc.).
Dolby Digital:
A surround sound system
developed by Dolby Laboratories containing
up to six channels of digital audio (front left
and right, surround left and right, centre and
subwoofer).
Dolby Surround Pro Logic II:
It is an
improved matrix decoding technology that
provides better spatiality and directionality
on Dolby Surround program material,
provides a convincing three dimensional
sound fi eld on conventional stereo music
recordings and is ideally suited to bring the
surround experience to automotive sound.
While conventional surround programming
is fully compatible with Dolby Surround Pro
Logic II decoders, soundtracks will be able to
be encoded specifi cally to take full advantage
of Pro Logic II playback, including separate
left and right surround channels. (Such
material is also compatible with conventional
Pro Logic decoders.)
DTS:
Digital Theater Systems. This is a
surround sound system, but it is different
from the Dolby Digital. The formats were
developed by different companies.
MP3:
A fi le format with a sound data
compression system. “MP3” is the
abbreviation of Motion Picture Experts
Group 1 (or MPEG-1) Audio Layer3. By
using the MP3 format, one CD-R or CD-RW
can contain about 10 times more data than a
regular CD.
Multi-channel:
DVDs are formatted to
have each sound track constitute one sound
fi eld. Multi-channel refers to a structure of
sound tracks having three or more channels.
Radio Data System (RDS):
The Radio
Data System is a broadcasting service which
the service provider sends additional
information such as station name and
frequency via the FM radio signal.
Super Audio CD (SACD):
This audio
format is based upon the current CD
standards but includes a greater amount of
information that provides higher quality
sound. There are three types of discs: single
layer, double layer and hybrid discs. The
hybrid disc contains both standard audio CD
and Super Audio CD information.
Surround:
A system for creating realistic
three dimensional sound fi elds full of realism
by arranging multiple speakers around the
listener.
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2007-02-13 11:27:46 AM
2007-02-13 11:27:46 AM
