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49
Gl
o
ssa
ry
9 Glossary
Analogue 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.
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).
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 bene
fi
t from the features
such as high-de
fi
nition videos, multichannel
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.
Component Video Output
Each signal of luminance (Y) and component
(PB/CB, PR/CR) is independent to output so
that you can experience picture colour as it is.
Also, due to compatibility with progressive
video (480p/576p), you can experience higher-
density picture than that in interlace (480i/576i).
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 analogue-to-digital
converter, generating a stream of numbers. On
playback, a digital-to-analogue converter
generates an analogue signal based on these
numbers.
DTS (Digital Theatre System)
DTS is a multi channel surround sound system.
You can enjoy movie dynamic and realistic
sound like movie theatre. DTS surround sound
technologies were developed by DTS, Inc.
Dolby Digital
The system to compress digital sound
developed by Dolby Laboratories. It offers you
sound of stereo (2ch) or multichannel audio.
HDCP
High-bandwidth Digital Content Protection is a
speci
fi
cation that provides a secure transmission
of digital contents between different devices (to
prevent unauthorised copyright).
HDMI (high de
fi
nition 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
fi
les. You can copy JPEG
fi
les on CD-RW/-R,
DVD-RW/-R or DVD+RW/+R from a
computer and play back the
fi
les on this unit.
MP3 (MPEG audio layer 3)
MP3 is a method of compressing
fi
les. You can
copy MP3
fi
les on CD-RW/-R, DVD-RW/-R or
DVD+RW/+R from the computer and play
back the
fi
les on 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 ampli
fi
ers with
digital inputs, this unit can convert Dolby Digital
and MPEG audio to PCM.
