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Dolby Digital EX
Dolby Digital EX is a 6.1-channel surround format
proposed by Dolby Laboratories that allows users
to enjoy in their homes the “DOLBY DIGITAL
SURROUND EX” audio format jointly developed by
Dolby Laboratories and Lucas Films.
The 6.1 channels of sound, including surround back
channels, provide improved sound positioning and
expression of space.
Dolby Digital Plus
Dolby Digital Plus is an improved Dolby Digital signal
format that is compatible with up to 7.1 channels
of discrete digital sound and also improves sound
quality thanks to extra data bit rate performance.
It is upwardly compatible with conventional Dolby
Digital, so it offers greater flexibility in response to
the source signal and the conditions of the playback
equipment.
Dolby Headphone
The Dolby Headphone technology provides
a surround sound listening experience over
headphones.
When listening to multichannel content such
as DVD movies over headphones, the listening
experience is fundamentally different than listening
to speakers. Since the headphone speaker drivers
are covering the pinna of the ear, the listening
experience differs greatly from traditional speaker
playback. Dolby utilizes patented headphone
perspective curves to solve this problem and
provides a non-fatiguing, immersive, home theater
listening experience. Dolby Headphone also
delivers exceptional 3D audio from stereo material.
Dolby TrueHD
Dolby TrueHD is a high definition audio technology
developed by Dolby Laboratories, using lossless
coding technology to faithfully reproduce the sound
of the studio master.
This format provides the facility to support up to 8
audio channels with a sampling frequency of 96 kHz
/ 24 bit resolution and up to 6 audio channels with
a sampling frequency of 192 kHz / 24 bit resolution.
Dolby TrueHD is adopted for applications that put
very high importance on sound quality.
Dolby Virtual Speaker
This is technology from Dolby Laboratories.
It is a surround system using just two speakers
to create the effect of surround sound, with
sound even coming from behind you as if it was a
5.1-channel system.
Downmix
This function converts the number of channels of
surround audio to less number of channels and
plays back.
DTS
This is an abbreviation of Digital Theater System,
which is a digital audio system developed by DTS.
When playing back audio by connecting this system
with a device such as DTS amplifier, accurate sound
field position and realistic sound effect as if you are
in a movie theater can be obtained.
DTS 96/24
DTS 96/24 is a digital audio format enabling high
sound quality playback in 5.1 channels with a
sampling frequency of 96 kHz and 24 bit quantization
on DVD-Video.
DTS Digital Surround
DTS Digital Surround is the standard digital surround
format of DTS, Inc., compatible with a sampling
frequency of 44.1 or 48 kHz and up to 5.1 channels
of digital discrete surround sound.
DTS-ES™ Discrete 6.1
DTS-ES™ Discrete 6.1 is a 6.1-channel discrete
digital audio format adding a surround back (SB)
channel to the DTS digital surround sound.
Decoding of conventional 5.1-channel audio signals
is also possible according to the decoder.
DTS-ES™ Matrix 6.1
DTS-ES™ Matrix 6.1 is a 6.1-channel discrete digital
audio format inserting a surround back (SB) channel
to the DTS digital surround sound through matrix
encoding. Decoding of conventional 5.1-channel
audio signals is also possible according to the
decoder.
Numerics
4:3 LB (letterbox)
When a wide (16:9) disc is played back by connecting
a 4:3 TV and this unit, this function plays back the
image with black area at the top and bottom.
4:3 PS (pan scan)
When a wide (16:9) disc is played back by
connecting a 4:3 TV and this unit, this function cuts
left and right of the played back image to the 4:3
size according to the disc’s control information.
A
A2DP
A2DP is one profile of Bluetooth definded for
in-car devices or AV devices that use wireless
communication instead of a cable.
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’s screen ratio is 4:3 and the
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.
AVCHD (Advanced Video Codec High Definition)
This is a high-definition digital camera (HD) standard
using high-efficiency encoding technology for
recording high-definition Hi-Vision signals to various
media.
AVI (Audio Video Interleaving)
A format developed by Microsoft for handling
video with audio on Windows computers. The
RIFF format used when storing multimedia data on
Windows is applied, and the format gets its name
from the way in which the audio data and video data
are interwoven.
B
BD-J (Blu-ray Disc Java)
With BD-Videos, there are fun software with
more interactive functions (games) using Java
applications.
BD-LIVE
This unit can be connected to the Internet to enjoy
a number of features, including additional contents
such as special videos or subtitles, network games,
etc.
Bit rate
This expresses the read amount per 1 second of
video/audio data recorded in a disc.
Blu-ray Disc
This is one-side 1 layer disc having 25 GB capacity
and can record high vision video movie and games.
Bonus View
Special images for BD-Videos. It includes comment
of the movie director, simultaneously developing
sub-story, and images from different angles.
C
Chapter
This is a break intended by a producer who
organizes the title of Blu-ray Disc or DVD-Video. The
chapter search function searches the beginning of
this break.
D
Deep Color
This technology allows expression of more number
of colors than the conventional 8 bits and can
reproduce colors close to natural ones without color
streak.
DHCP (Dynamic Host Configuration Protocol)
This mechanism automatically perform network
configuration such as IP address for network
devices including the unit, PC, and broadband
router.
Dolby Digital
Dolby Digital is a multi-channel digital signal format
developed by Dolby Laboratories.
A total of 5.1 channels are played: 3 front channels
(“FL” , “FR” and “C”), 2 surround channels
(“SL” and “SR”) and the “LFE” channel for low
frequencies.
Because of this, there is no crosstalk between
channels and a realistic sound field with a “three-
dimensional” feeling (sense of distance, movement
and positioning) is achieved.
A realistic, powerful sense of presence is achieved
when playing movie sources in AV rooms as well.
Explanation terms
