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15 GLOSSARY
Analog Audio
An electrical signal that directly represents sound.
Compare this to digital audio which can be an electrical
signal, but is an indirect representation 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 TV screen is
almost square); widescreen model are 16:9 (the TV screen is
almost twice as wide as its height).
Attenuation
Attenuation is a function to reduce excessive signals to
adequate levels. By reducing signal levels, sound quality
may improve.
AVCHD
AVCHD is a new format for high definition video camcorders
which can record and play high-resolution HD images.
BD-Live™
BD-Live™ is a BD-video (BD-ROM version 2 Profile 2.0)
which contains new functions (e.g. Internet connection), in
addition to the BONUSVIEW™ function.
Blu-ray Disc™
Blu-ray Disc™ is a next generation optical video disc which
is capable of storing much more data than a conventional
DVD. The large capacity makes it possible to benefit from the
features such as high-definition videos, multi-channel surround
sounds, interactive menus and so on.
Chapter
Just as a book is split up into several chapters, a title on a
BD-video or DVD-video is usually divided into chapters. See
also “Title”.
Cinavia™
Cinavia Notice
This product uses Cinavia technology to limit the use of
unauthorized copies of some commercially-produced film
and videos and their soundtracks. When a prohibited use
of an unauthorized copy is detected, a message will be
displayed and playback or copying will be interrupted. More
information about Cinavia technology is provided at the
Cinavia Online Consumer Information Center at
http://www.cinavia.com
To request additional information about Cinavia by mail,
send a postcard with your mailing address to: Cinavia
Consumer Information Center, P.O. Box 86851, San Diego,
CA, 92138, USA.
This product incorporates proprietary technology under
license from Verance Corporation and is protected by U.S.
Patent 7,369,677 and other U.S. and worldwide patents
issued and pending as well as copyright and trade secret
protection for certain aspects of such technology. Cinavia is
a trademark of Verance Corporation. Copyright 2004-2016
Verance Corporation. All rights reserved by Verance. Reverse
engineering or disassembly is prohibited.
Digital Audio
An indirect representation of sound by numbers. During
recording, the sound is measured at discrete intervals
(44,100 times a second for CD audio) by an analog-to-digital
converter, generating a stream of numbers. On playback,
a digital-to-analog converter generates an analog signal
based on these numbers. See also “Sampling Frequency”
and “Analog Audio”.
DNS Server
A server which translates Internet domain names into IP
addresses.
Dolby Audio - Dolby
®
Digital
The system to compress digital sound developed by Dolby
Laboratories. It offers you sound of stereo (2ch) or multi-
channel audio.
Dolby Audio - Dolby Digital Plus
Dolby Digital Plus is the next generation digital audio
compression technology developed as an extension to
Dolby Digital. Blu-ray Disc™ supports 7.1 multi-channel
surround sound output.
