Glossary - JVC KD-DV5000 Instructions Manual

GLOSSARY

4:3 Letterbox Screen
This is one method for displaying a wide screen
picture on a conventional sized (4:3) TV. While
viewing a wide screen picture, the black bars
appear on the top and the bottom of the screen.
4:3 Pan-Scan Screen
This is one method for displaying a wide screen
picture on a conventional sized (4:3) TV. While
viewing a wide screen picture, the left and right
edges of the pictures will not be shown on the
screen.
Dolby Digital
This is a digital audio compression technology
that was developed by Dolby Laboratories. Dolby
Digital encoding method (so-called discrete 5.1
channel digital audio format) records and
compresses digitally signals of the left front
channel, right front channel, center channel, left
rear channel, right rear channel, and LFE
channel (total 6 channels, but LFE channel is
counted as 0.1 channel, therefore called 5.1
channels) signals digitally. Each channel is
completely independent from other channel
signals to avoid interference; therefore, you can
obtain much better sound quality with stereo and
surround effects.
To reproduce these original surround signals,
you need to connect an amplifier or a decoder
compatible with Dolby Digital.
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DTS Digital Surround
This is another discrete 5.1 channel digital audio
format, available on CD, LD, and DVD software,
developed by Digital Theater Systems, Inc.
Compared to Dolby Digital, the audio
compression rate is relatively low. This fact
allows DTS Digital Surround format to add
breadth and depth to the reproduced sounds. As
a result, DTS Digital Surround features natural,
solid and clear sound.
To reproduce these surround signals, you need
to connect an amplifier or a decoder compatible
with DTS Digital Surround.
ID3 Tag (MP3)
An MP3 file can contain file information called
"ID3 Tag" where its album name, performer, track
title, etc. are recorded.
There are two versions–ID3v1 (ID3 Tag version 1)
and ID3v2 (ID3 Tag version 2). Only ID3v1 can be
shown.
Linear PCM
This is a digital recording format that is used for
audio CDs.
Playback Control (VCD)
When a VCD has the PBC (Playback Control)
function, you can use menu-driven operations
and enjoy high-resolution still pictures.
Sampling Frequency, Quantization Bits
When analog signals are converted into digital
signals, they are divided into many points and
digitized. This dividing method is called
"sampling." The sampling frequency indicates
how many points one second is divided into – for
example, for CD sound, one second is divided
into 44100 points since its sampling frequency is
44.1 kHz. On the other hand, the number of
quantization bits indicates the volume size used
to memorize each divided point.
The larger this number is, the clearer the sound
can be reproduced.