Philips HES4900/98 User Manual page 35

12 Glossary
A
Analog audio
Sound that has not been turned into numbers.
Analog sound is available when you use the
AUDIO LEFT/RIGHT. These red and white jacks
send audio through two channels, the left and
right.
Aspect ratio
Aspect ratio refers to the length to height ratio
of TV screens. The ratio of a standard TV is 4:3,
while the ratio of a high-defi nition or wide TV
is 16:9. The letter box allows you to enjoy a
picture with a wider perspective on a standard
4:3 screen.
B
Bit rate
Bit rate is the number of bits that are conveyed
or processed per unit of time. The bit rate is
usually measured in some multiple of bits per
second (kilobits per second: kbps). The term
bit rate is a synonym for data transfer rate (or
simply data rate).
C
Chapter
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 that enables you to
locate a specifi c chapter.
D
Digital Audio
Digital Audio is a sound signal that has been
converted into numerical values. Digital sound
can be transmitted through multiple channels.
36 EN
Analog sound can only be transmitted through
two channels.
Disc menu
A screen display that allows election of images,
sounds, subtitles, multi-angles, etc., recorded on
a DVD.
DivX®
The DivX® codec is a patent-pending, MPEG-4
based video compression technology developed
by DivX®, Inc. It can shrink the fi le size of digital
video and still maintain the high visual quality.
Dolby Digital
A surround sound system developed by Dolby
Laboratories that contains up to six channels of
digital audio (front left and right, surround left
and right, center and subwoofer.)
H
HDMI
High-Defi nition Multimedia Interface is a
high-speed digital interface that can transmit
uncompressed high defi nition video and digital
multichannel audio. It delivers high quality
picture and sound quality, completely free from
noise. HDMI is fully backward-compatible with
DVI.
As required by the HDMI standard, connecting
to HDMI or DVI products without HDCP
(High-bandwidth Digital Content Protection)
will result in no Video or Audio output.
J
JPEG
A very common digital still picture format. A
still-picture data compression system proposed
by the Joint Photographic Expert Group, which
features small decrease in image quality in
spite of its high compression ratio. Files are
recognized by their fi le extension '.jpg' or '.jpeg. '