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Additional information
12
102
En
About THX
The THX technologies a
r
e ex
p
lained below. See
www.thx.com fo
r
mo
r
e detailed info
r
mation.
•
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’
p
e
r
sonal desi
r
e to make you
r
ex
p
e
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
p
ossible to what the di
r
ecto
r
intended.
Movie soundt
r
acks a
r
e mixed in s
p
ecial movie theat
r
es called
dubbing stages and a
r
e designed to be
p
layed back in movie theat
r
es
with simila
r
equi
p
ment and conditions. This same soundt
r
ack is then
t
r
ansfe
rr
ed di
r
ectly onto Lase
r
disc, VHS ta
p
e, DVD, etc., and is not
changed fo
r
p
layback in a small home theat
r
e envi
r
onment. THX
enginee
r
s develo
p
ed
p
atented 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 s
p
atial e
rr
o
r
s that occu
r
. On this
pr
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
p
layed back ove
r
audio equi
p
ment in the home because
film soundt
r
acks we
r
e designed to be
p
layed back in la
r
ge movie
theate
r
s using ve
r
y diffe
r
ent
pr
ofessional equi
p
ment. 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
p
e
r
ce
p
tion of a sound de
p
ending 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 s
p
eake
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 s
p
eake
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 s
p
eake
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 s
p
eake
r
s. This
ensu
r
es seamless
p
anning between the f
r
ont and su
rr
ound s
p
eake
r
s.
•
Adaptive Decorrelation
In a movie theat
r
e, a la
r
ge numbe
r
of su
rr
ound s
p
eake
r
s hel
p
c
r
eate
an envelo
p
ing su
rr
ound sound ex
p
e
r
ience, but in a home theat
r
e
the
r
e a
r
e usually only two s
p
eake
r
s. This can make the su
rr
ound
s
p
eake
r
s sound like head
p
hones that lack s
p
aciousness and
envelo
p
ment. The su
rr
ound sounds will also colla
p
se into the closest
s
p
eake
r
as you move away f
r
om the middle seating
p
osition. Ada
p
tive
Deco
rr
elation slightly changes one su
rr
ound channel’s time and
p
hase
r
elationshi
p
with
r
es
p
ect to the othe
r
su
rr
ound channel. This
ex
p
ands the listening
p
osition and c
r
eates—with only two s
p
eake
r
s—
the same s
p
acious su
rr
ound ex
p
e
r
ience as in a movie theat
r
e.
•
THX Select2 Plus
Befo
r
e any home theat
r
e com
p
onent can be THX Select2 Plus
ce
r
tified, it must inco
rp
o
r
ate all the featu
r
es above and also
p
ass a
r
igo
r
ous se
r
ies of quality and
p
e
r
fo
r
mance tests. Only then can a
pr
oduct featu
r
e the THX Select2 Plus logo, which is you
r
gua
r
antee
that the Home Theat
r
e
pr
oducts you
p
u
r
chase will give you su
p
e
r
b
p
e
r
fo
r
mance fo
r
many yea
r
s to come. THX Select2 Plus
r
equi
r
ements
cove
r
eve
r
y as
p
ect of the
pr
oduct including
pr
e-am
p
lifie
r
and
p
owe
r
am
p
lifie
r
p
e
r
fo
r
mance and o
p
e
r
ation, and hund
r
eds of othe
r
p
a
r
amete
r
s in both the digital and analog domain.
•
THX Surround EX
THX Su
rr
ound EX - Dolby Digital Su
rr
ound EX is a joint develo
p
ment
of Dolby Labo
r
ato
r
ies and the THX Ltd. In a movie theate
r
, film
soundt
r
acks that have been encoded with Dolby Digital Su
rr
ound EX
technology a
r
e able to
r
e
pr
oduce an ext
r
a channel which has been
added du
r
ing the mixing of the
pr
og
r
am. This channel, called
Su
rr
ound Back,
p
laces sounds behind the listene
r
in addition to the
cu
rr
ently available f
r
ont left, f
r
ont cente
r
, f
r
ont
r
ight, su
rr
ound
r
ight,
su
rr
ound left and subwoofe
r
channels. This additional channel
pr
ovides the o
pp
o
r
tunity fo
r
mo
r
e detailed imaging behind the
listene
r
and b
r
ings mo
r
e de
p
th, s
p
acious ambience and sound
localization than eve
r
befo
r
e. Movies that we
r
e c
r
eated using the
Dolby Digital Su
rr
ound EX technology, when
r
eleased into the home
consume
r
ma
r
ket may exhibit wo
r
ding to that effect on the
p
ackaging. A list of movies c
r
eated using this technology can be
found on the Dolby web site at www.dolby.com.
Only am
p
lifie
r
and cont
r
olle
r
pr
oducts bea
r
ing the THX Su
rr
ound EX
logo, when in the THX Su
rr
ound EX mode, faithfully
r
e
pr
oduce this
new technology in the home.
This
pr
oduct may also engage the “THX Su
rr
ound EX” mode du
r
ing
the
p
layback of 5.1 channel mate
r
ial that is not Dolby Digital
Su
rr
ound EX encoded. In such case the info
r
mation delive
r
ed to the
Su
rr
ound Back channel will be
pr
og
r
am de
p
endent and may o
r
may
not be ve
r
y
p
leasing de
p
ending on the
p
a
r
ticula
r
soundt
r
ack and the
tastes of the individual listene
r
.
•
Advanced Speaker Array (ASA)
ASA is a
pr
o
pr
ieta
r
y THX technology which
pr
ocesses the sound fed
to 2 side and 2 back su
rr
ound s
p
eake
r
s to
pr
ovide the o
p
timal
su
rr
ound sound ex
p
e
r
ience. When you set u
p
you
r
home theate
r
system using all eight s
p
eake
r
out
p
uts (Left, Cente
r
, Right, Su
rr
ound
Right, Su
rr
ound Back Right, Su
rr
ound Back Left, Su
rr
ound Left and
Subwoofe
r
)
p
lacing the two Su
rr
ound Back s
p
eake
r
s close togethe
r
facing the f
r
ont of the
r
oom as shown in the diag
r
am will
pr
ovide the
la
r
gest sweet s
p
ot. If fo
r
pr
actical
r
easons you have to
p
lace the
Su
rr
ound Back s
p
eake
r
s a
p
a
r
t, you will need to go THX Audio Set-u
p
sc
r
een and choose the setting that most closely co
rr
es
p
onds to the
s
p
eake
r
s
p
acing, which will
r
e-o
p
timize the su
rr
ound sound-field.
ASA is used in th
r
ee new modes; THX Select2 CINEMA, THX Select2
MUSIC and THX Select2 GAMES.
•
Boundary Gain Compensation™
De
p
ending on the listene
r
’s and the subwoofe
r
’s
p
osition, the listene
r
may ex
p
e
r
ience an excessive bass effect. This featu
r
e com
p
ensates
fo
r
excessive bass
r
esulting f
r
om a bounda
r
y gain effect. This featu
r
e
is designed to o
p
e
r
ate when used with a subwoofe
r
ce
r
tified to THX
Select2™ s
p
ecifications.
•
THX Music
Fo
r
the
r
e
p
lay of multi-channel music the THX MusicMode should be
selected. In this mode THX ASA
pr
ocessing is a
pp
lied to the su
rr
ound
channels of all 5.1 encoded music sou
r
ces such as DTS, Dolby Digital
and DVD-Audio to
pr
ovide a wide stable
r
ea
r
soundstage.
•
THX Games
Fo
r
the
r
e
p
lay of ste
r
eo and multi-channel game audio the THX
Games Mode should be selected. In this mode THX ASA
pr
ocessing
is a
pp
lied to the su
rr
ound channels of all 5.1 and 2.0 encoded game
sou
r
ces such as analog, PCM, DTS and Dolby Digital. This accu
r
ately
p
laces all game audio su
rr
ound info
r
mation,
pr
oviding a full 360
deg
r
ee
p
layback envi
r
onment. THX Games Mode is unique as it gives
you a smooth t
r
ansition of audio in all
p
oints of the su
rr
ound field.
VSX-LX52_SVYXJ.book 102 ページ 2009年2月26日 木曜日 午後4時31分