Sharp DV-RW550U - Manual (Page 103)

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Glossary
Analog audio
An electrical signal that directly
represents sound. In contrast, digi-
tal audio can be an electrical sig-
nal, but is an indirect representa-
tion of sound. See also Digital
audio.
Aspect ratio
The width of a TV screen relative
to its height. Conventional TVs are
4:3 (in other words, the screen is
almost square); widescreen models
are
16:9 (the screen is almost
twice as wide as it is high).
Chapter
Just as a book is split up into sev-
eral chapters, a title on a DVD
disc is usually divided into chap-
ters. See also Title.
Component video output
This is a video signal format that
conveys each of three principal
colors of light (red, blue and
green) through different signal
lines.This allows the viewers to
experience picture colors as origi-
nal as it is.There are several signal
formats, including Y/P
B /P R and
Y/C B /C R .
CPRM
(Content Protection for
Recordable Media)
This is a format used to record
copy-once programs. By recording
coded data on the area of DVD
discs that ordinary writing soft-
ware cannot write on, it prevents
copy-once programs from being
recorded repeatedly on different
media.
Digital audio
An indirect representation of
sound by numbers. During record-
ing, the sound is measured at dis-
crete intervals (44,
100 times a
second for CD audio) by an ana-
log-to-digital converter, generating
a stream of numbers. On playback,
a digital-to-analog converter gen-
erates an analog signal based on
these numbers. See also Sampling
frequency and Analog audio.
Dolby Digital
The system developed by Dolby
Laboratories to compress digital
sound. It offers you sound of
stereo(2ch) or multi-channel
audio (up to 5.
1ch).
DTS (Digital Theater System)
DTS is a 5. 1 channel surround
sound system, but it is different
from Dolby Digital.The formats
were developed by Digital Theater
System, Inc.
Finalize
To make recorded contents on
DVD discs possible to be played
back on DVD players.With this
unit, it is possible to finalize
DVD-RW/DVD-R discs.
MP3 (MPEG Audio Layer 3)
MP3 is a method of compressing
files.You can copy MP3 files on
CD-RW/-R discs from the com-
puter and play back the files on
this unit.
PCM
(Pulse Code Modulation)
PCM is a format that converts
audio into digital data. It is mainly
used for Audio CDs and DAT.This
unit can play back sounds as real-
istic as possible by converting
even compressed Dolby Digital
and MPEG audio to PCM.
Playlist
From this list you can play back
contents of a disc in your desired
order or sequence. Also it allows
to search a specific scene directly.
Progressive scan (480p)
A type of display that does not
split each frame into fields, and
instead scans directly through all
the scanlines of each frame in
order. Progressive scan provides
less flickering and higher image
resolution than traditional (480i)
TV signals. Refer to page
14 for
instructions on selective progres-
sive scan mode.
Regions code
Regions associate discs and play-
ers with particular areas of the
world.This unit will only play back
discs that have compatible region
codes.You can find the region
code of your unit by looking at
the rear panel. Some discs are
compatible with more than one
region (or all regions).
Sampling frequency
The rate which sound is measured
by a specified interval to turn it
into digital audio data.The num-
bers of sampling in one second
defines as sampling frequency.The
higher the rate, the better the
sound quality is.
SAP
(Secondary Audio Program)
Sub-audio channel which is deliv-
ered separately from main-audio
channel.This audio channel is used
as an alternate in bilingual broad-
casting.
S-Video output
It delivers independently each sig-
nal of color(C) and luminance(Y)
to TV as video signals, so that
higher-quality picture will be
materialized.
Title (DVD only)
A collection of chapters on DVD
disc. See also Chapter.
Track
Audio CDs use tracks to divide
the content of a disc.The DVD
equivalent is called a chapter. See
also Chapter.
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