Additional information
13
129
En
Surround sound formats
Below is a b
r
ief desc
r
iption of the main su
rr
ound sound
fo
r
mats you’ll find on BDs, DVDs, satellite, cable and
te
rr
est
r
ial b
r
oadcasts, and video cassettes.
Dolby
The Dolby technologies a
r
e explained below. See
www.dolby.com fo
r
mo
r
e detailed info
r
mation.
Manufactured under license from Dolby Laboratories.
“
Dolby
”
,
“
Pro Logic
”
,
“
Surround EX
”
and the double-D
symbol are trademarks of Dolby Laboratories.
DTS
The DTS technologies a
r
e explained below. See
www.dtstech.com fo
r
mo
r
e detailed info
r
mation.
Manufactured under license under U.S. Patent #’s:
5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616;
6,487,535; 7,212,872; 7,333,929; 7,392,195; 7,272,567 &
other U.S. and worldwide patents issued & pending. DTS
and the Symbol are registered trademarks, & DTS-HD, DTS-
HD Master Audio, and the DTS logos are trademarks of
DTS, Inc. Product includes software. © DTS, Inc. All Rights
Reserved.
Windows Media Audio 9 Professional
Windows Media Audio 9 P
r
ofessional (WMA9 P
r
o) is a
disc
r
ete su
rr
ound fo
r
mat developed by Mic
r
osoft
Co
r
po
r
ation.
Windows Media and the Windows logo are trademarks or
registered trademarks of Microsoft Corporation in the
United States and/or other countries.
About THX
The THX technologies a
r
e explained below. See
www.thx.com fo
r
mo
r
e detailed info
r
mation.
In case of SC-LX83
In case of SC-LX73
•
THX Cinema processing
THX is an exclusive set of standa
r
ds and technologies established by
THX Ltd. THX g
r
ew f
r
om Geo
r
ge Lucas’ pe
r
sonal desi
r
e to make you
r
expe
r
ience of the film soundt
r
ack, in both movie theat
r
es and in you
r
home theat
r
e, as faithful as possible to what the di
r
ecto
r
intended.
Movie soundt
r
acks a
r
e mixed in special movie theat
r
es called
dubbing stages and a
r
e designed to be played back in movie theat
r
es
with simila
r
equipment and conditions. This same soundt
r
ack is then
t
r
ansfe
rr
ed di
r
ectly onto Lase
r
disc, VHS tape, DVD, etc., and is not
changed fo
r
playback in a small home theat
r
e envi
r
onment. THX
enginee
r
s developed patented technologies to accu
r
ately t
r
anslate
the sound f
r
om the movie theat
r
e envi
r
onment into the home,
co
rr
ecting the tonal and spatial e
rr
o
r
s that occu
r
. On this p
r
oduct,
when the THX indicato
r
is on, THX featu
r
es a
r
e automatically added
in Cinema modes (e.g. THX Cinema, THX Su
rr
ound EX).
•
Re-Equalization
The tonal balance of a film soundt
r
ack will be excessively b
r
ight and
ha
r
sh when played back ove
r
audio equipment in the home because
film soundt
r
acks we
r
e designed to be played back in la
r
ge movie
theate
r
s using ve
r
y diffe
r
ent p
r
ofessional equipment. Re-Equalization
r
esto
r
es the co
rr
ect tonal balance fo
r
watching a movie soundt
r
ack in
a small home envi
r
onment.
•
Timbre Matching
The human ea
r
changes ou
r
pe
r
ception of a sound depending on the
di
r
ection f
r
om which the sound is coming. In a movie theat
r
e, the
r
e is
an a
rr
ay of su
rr
ound speake
r
s so that the su
rr
ound info
r
mation is all
a
r
ound you. In a home theat
r
e, you use only two speake
r
s located to the
side of you
r
head. The Timb
r
e Matching featu
r
e filte
r
s the info
r
mation
going to the su
rr
ound speake
r
s so that they mo
r
e closely match the
tonal cha
r
acte
r
istics of the sound coming f
r
om the f
r
ont speake
r
s. This
ensu
r
es seamless panning between the f
r
ont and su
rr
ound speake
r
s.
•
Adaptive Decorrelation
In a movie theat
r
e, a la
r
ge numbe
r
of su
rr
ound speake
r
s help c
r
eate
an enveloping su
rr
ound sound expe
r
ience, but in a home theat
r
e
the
r
e a
r
e usually only two speake
r
s. This can make the su
rr
ound
speake
r
s sound like headphones that lack spaciousness and
envelopment. The su
rr
ound sounds will also collapse into the closest
speake
r
as you move away f
r
om the middle seating position. Adaptive
Deco
rr
elation slightly changes one su
rr
ound channel’s time and
phase
r
elationship with
r
espect to the othe
r
su
rr
ound channel. This
expands the listening position and c
r
eates—with only two speake
r
s—
the same spacious su
rr
ound expe
r
ience as in a movie theat
r
e.
SC-LX83_73_DLPW.book 129 ページ 2010年5月19日 水曜日 午後2時7分