Glossary – Sylvania NB500SL9 User Manual

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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 models are 16:9 (the TV
screen is almost twice as wide as it is high).

BD-Java

With some BD which support Java applications, you can
enjoy the interactive functions such as games or
interactive menus.

Blu-ray Disc (BD)

Blu-ray Disc is a next generation optical video disc which
is capable of storing much more data than a conventional
DVD is. 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”.

Component Video Output

Each signal of luminance (Y) and component (P

, P

)

is independent to output so that you can experience
picture color as it is.
Also, due to compatibility with progressive video
(525p/480p), you can experience higher-density picture
than that in interlace (525i/480i).

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”.

Dolby Digital

The system to compress digital sound developed by
Dolby Laboratories. It offers you sound of stereo (2ch) or
multi-channel 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.

Dolby TrueHD

Dolby TrueHD is a lossless coding technology developed
for next generation optical discs. Blu-ray Disc supports 7.1
multi-channel surround sound output.

DTS (Digital Theater System):

DTS is a multi-channel surround sound system. By
connecting to DTS decoder, you can enjoy movie dynamic
and realistic sound like movie theater. DTS surround sound
technologies were developed by DTS, Inc.

DTS-HD

DTS-HD is a lossless coding technology developed as an
extension of the original DTS Coherent Acoustics format.
Blu-ray Disc supports 7.1 multi-channel surround sound
output.

HDMI (high-definition multimedia interface)

A digital interface between audio and video source. It can
transmit component video, audio, and control signal with
one cable connection.

JPEG (joint photographic experts group)

JPEG is a method of compressing still picture files. You
can copy JPEG files on CD-RW/-R, DVD or SD Memory
Card from a computer and play back the files in this unit.

PCM (pulse code modulation)

The most common system of encoding digital audio,
found on CD and DAT. Excellent quality, but requires a lot
of data compared to formats such as Dolby Digital and
MPEG audio. For compatibility with digital audio
recorders (CD, MD and DAT) and AV amplifiers with
digital inputs, this unit can convert Dolby Digital and
MPEG audio to PCM. See also “Digital Audio”.

Region Code

Regions associate discs and players 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 on 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 into digital audio data. The numbers of sampling
in one second defines as sampling frequency. The higher
the rate, the better the sound quality.

Title

A collection of chapters on BD-video or DVD-video. See
also “Chapter”.

Track

Audio CD use tracks to divide up the content of a disc.
The BD-video or DVD-video equivalent is called a chapter.
See also “Chapter”.

GLOSSARY

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