Glossary - Philips HTS3090 User Manual

Glossary

Analog: Sound that has not been turned
into numbers. Analog sound varies, while
digital sound has specifi c numerical values.
These jacks send audio through two
channels, the left and right.
Aspect ratio: The ratio of vertical and
horizontal sizes of a displayed image. The
horizontal vs. vertical ratio of conventional
TVs is 4:3, and that of wide-screens is 16:9.
Bit Rate: The amount of data used to hold
a given length of music; measured in kilobits
per second, or kbps. Or, the speed at which
you record. Generally, the higher the bit
rate, or the higher the recording speed, the
better the sound quality. However, higher bit
rates use more space on a disc.
Chapter: Sections of a picture or a music
piece on a DVD that are smaller than titles.
A title is composed of several chapters. Each
chapter is assigned a chapter number
enabling you to locate the chapter you want.
Disc menu: A screen display prepared for
allowing a selection of images, sounds,
subtitles, multi-angles, etc to be recorded on
a DVD.
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, center 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, sound
tracks 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).
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JPEG: A very common digital still picture
format. A still picture data compression
system proposed by the Joint Photographic
Expert Group, which features a small
decrease in image quality in spite of its high
compression ratio.
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.
Playback control (PBC): Refers to the
signal recorded on video CDs or SVCDs for
controlling playback. By using menu screens
recorded on a Video CD or SVCD that
supports PBC, you can enjoy interactive
playback and searching.
Region code: A system allowing discs to be
played only in the region designated. This
unit will only play discs that have compatible
region codes. You can fi nd the region code
of your unit by looking at the product label.
Some discs are compatible with more than
one region (or ALL regions).
Surround: A system for creating realistic
three dimensional sound fi elds full of realism
by arranging multiple speakers around the
listener.
Title: The longest section of a movie or
music feature on DVD. Each title is assigned
a title number, enabling you to locate the
title you want.
VIDEO OUT jack: Yellow jack on the back
of the DVD system that sends the DVD
picture video to a TV.