Explanation of terms – Marantz UD7007 User Manual

Page 64

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A

AAC (Advanced Audio Coding)
This is an internationally standardized audio data
compression scheme. It has a compression ratio 1.4
times higher than the “MP3” audio compression
scheme adopted for “MPEG-1”.
Aspect ratio
This is the length and width ratio of the TV
screen. The conventional TV screen’s ratio
is 4:3 and a wide screen TV’s screen ratio is

16:9.
Audio commentary
This is an audio program included as a bonus
feature in a DVD-Video or BD-Video. It uses a multi-
audio function to provide an audio explanation or
commentary by members of the crew or director,
etc. to accompany the video.

B

BD-J (Blu-ray Disc Java)
BD-Video offer fun software with more interactive
functions (games) that use Java applications.
BD-Live™
The unit can be connected to the Internet to enjoy
a number of features, including additional contents
such as special video or subtitles, games, etc.
Bit rate
This is the amount of video or audio data recorded
on a disc that is read in one second.
Blu-ray disc
Blu-ray discs can record high-definition video
movies of up to 25 GB for single-sided single-layer
discs or 50 GB for single-sided dual-layer discs.
Bonus View
Special images for BD-Video. It includes comments
from the movie director, simultaneously developing
sub-stories, and images from different angles.

C

Chapter
This is a break intended by the producer, who
organizes the titles of BD or DVD-Video. The
chapter search function searches for the beginning
of this break.

D

Deep Color
This technology allows expression of more colors
than the conventional 8-bit and can reproduce more
natural colors without any color streaking.
Default Gateway
This device is the entry and exit point between an
internal network and an external network (Internet,
etc.).
DHCP (Dynamic Host Configuration Protocol)
This function assigns IP addresses automatically to
network devices.
DivX
This is a video codec (video compression/
decompression software) developed by DivX, Inc.
The compression technology is based on “MPEG-
4 Part 2” (known as “MPEG-4 ASP”). It allows
along video to be compressed into a small file while
maintaining a high-quality image.
It is available in the free “DivX” version or the paid
“DivX PRO”version.
DLNA
An abbreviation of Digital Living Network Alliance.
An industry group that was established to decide
specifications for the mutual connection of audio
visual devices and computers in a home network
and the mutual utilization of music, photo and video
data.
This unit is based on DLNA Home Networked
Device Interoperability Guidelines.
DNS (Domain Name System)
A system that matches host names on the Internet
to IP addresses.
Dolby Digital (5.1-ch Surround)
This is a stereophonic effect developed by Dolby
Laboratories. This is a maximum of 5.1 channels,
independent multi-channel audio system.
Dolby Digital Plus
This is an extended version of Dolby Digital and is a
high sound quality, digital audio technology adopted
as an optional audio for Blu-ray discs.
Dolby TrueHD
This lossless coding technology is adopted as an
optional audio for Blu-ray disc and supports 7.1
channels.

Downmix
This function converts the number of channels of
surround audio to less channels for playback.
DTS
This is an abbreviation of Digital Theater System,
which is a digital audio system developed by DTS.
When playing audio on this system while connected
to a device such as a DTS amplifier, accurate sound
field position and realistic sound effects can be
obtained, making you feel like you are in a movie
theater.
DTS-HD
This audio technology provides an enhanced
functionality and a higher quality of sound than
conventional DTS and is adopted as an optional
audio for Blu-ray disc. This technology supports
multi-channel, high data transfer speed, high
sampling-frequency, and lossless audio playback. A
maximum of 7.1 channels are supported on Blu-ray
discs.
Dynamic range
The difference between the maximum, undistorted
sound level and the minimum sound level that is
discernible above the noise emitted by the device.

F

Finalizing
This process enables DVD/CD recorded with a
recorder to be played by other players.

H

HDCP
When transmitting digital signals between devices,
this copyright protection technology encrypts
the signals to prevent content from being copied
without authorization.
HDMI
This is an abbreviation of High-Definition Multimedia
Interface, which is an AV digital interface that can
be connected to a TV or amplifier. Video signal and
audio signal can be connected with 1 cable.

I

Interlacing (interlaced scanning)
This conventional method used to project images
on a TV displays 1 frame of image in half and half,
respectively as 2 fields.

Interactive audio
This is audio recorded in the titles of BD-Video,
such as clicking sounds made during operations.
IP Address
An identification number that is assigned to each
network device.

J

JPEG (Joint Photo graphic Experts Group)
This is a still picture data compression standard. Its
ability to reduce the size of a file with relatively little
deterioration in image quality means that it is widely
used for storing images in video cameras, etc.

L

LAN (Local Area Network)
A wired or wireless network that connects devices
together.
Linear PCM
This is an uncompressed PCM (Pulse Code
Modulation) signal. This is the same system as the
CD audio but uses 192 kHz, 96 kHz, and 48 kHz
sampling frequencies on BD or DVD and provides
higher sound quality than CD.

M

MAC Address
A unique identification number for network devices
such as LAN cards.
MP3 (MPEG AudioLayer 3)
This is an internationally standardized audio data
compression scheme, using the “MPEG-1” video
compression standard. It compresses the data
volume to about one eleventh its original size while
maintaining sound quality equivalent to a music CD.
MPEG
This is an abbreviation of Moving Picture Experts
Group, which is an international standard of the
moving picture audio compression method. Images
on BD and DVD are recorded using this method.

P

Picture-in-picture
This BD-Video function allows you to view scenes,
such as the making of or commentary on the movie,
in the secondary video while viewing the main story
in the primary video.

Explanation of Terms

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