Pioneer VSX-1120-K, Operating Instructions Manual

Page: 95 / 108

Additional information 12
95
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 .
• 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 Loudness Plus Description
THX Loudness Plus is a new volume cont r ol technology featu r ed in
THX Ult r a2 Plus™ and THX Select2 Plus™ Ce r tified am p lifie r s. With
THX Loudness Plus, home theate r audiences can now ex p e r ience the
r ich details in a su rr ound mix at any volume level. A consequence of
tu r ning the volume below Refe r ence Level is that ce r tain sound
elements can be lost o r p e r ceived diffe r ently by the listene r . THX
Loudness Plus com p ensates fo r the tonal and s p atial shifts that occu r
when the volume is r educed by intelligently adjusting ambient
su rr ound channel levels and f r equency r es p onse. This enables use r s
to ex p e r ience the t r ue im p act of soundt r acks r ega r dless of the volume
setting. THX Loudness Plus is automatically a pp lied when listening in
any THX listening mode. The new THX Cinema, THX Music, and THX
Games modes a
r e tailo r ed to a pp ly the pr o p e r THX Loudness Plus
settings fo r each ty p e of content.
• ASA Description
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 ), be su r e to go to the 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
modes; THX Ult r a2 Cinema, THX Ult r a2 Music and THX Ult r a2 Games.
VSX-1120_UXJCB.book 95 ページ ２０１０年３月１０日 水曜日 午後２時２分