Manual Pioneer VSX-1120-K (page 95 of 108) (English)

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Additional information

About THX

The THX technologies are explained below. See

www.thx.com for more detailed information.

• THX Cinema processing

THX is an exclusive set of standards and technologies established by

THX Ltd. THX grew from George Lucas’ personal desire to make your

experience of the film soundtrack, in both movie theatres and in your

home theatre, as faithful as possible to what the director intended.

Movie soundtracks are mixed in special movie theatres called

dubbing stages and are designed to be played back in movie theatres

with similar equipment and conditions. This same soundtrack is then

transferred directly onto Laserdisc, VHS tape, DVD, etc., and is not

changed for playback in a small home theatre environment. THX

engineers developed patented technologies to accurately translate

the sound from the movie theatre environment into the home,

correcting the tonal and spatial errors that

cur. On this product,

when the THX indicator is on, THX features are automatically added

in Cinema modes (e.g. THX Cinema, THX Surround EX).

• Re-Equalization

The tonal balance of a film soundtrack will be excessively bright and

harsh when played back over audio equipment in the home because

film soundtracks were designed to be played back in large movie

theaters using very different professional equipment. Re-Equalization

restores the correct tonal balance for watching a movie soundtrack in

a small home environment.

• Timbre Matching

The human ear changes our perception of a sound depending on the

direction from which the sound is coming. In a movie theatre, there is

an array of surround speakers so that the surround information is all

around you. In a home theatre, you use only two speakers located to the

side of your head. The Timbre Matching feature filters the information

going to the surround speakers so that they more closely match the

tonal characteristics of the sound coming from the front speakers. This

ensures seamless panning between the front and surround speakers.

• Adaptive Decorrelation

In a movie theatre, a large number of surround speakers help create

an enveloping surround sound experience, but in a home theatre

there are usually only two speakers. This can make the surround

speakers sound like headphones that lack spaciousness and

envelopment. The surround sounds will also collapse into the closest

speaker as you move away from the middle seating position. Adaptive

Decorrelation slightly changes one surround channel’s time and

phase relationship with respect to the other surround channel. This

expands the listening position and creates—with only two speakers—

the same spacious surround experienc

e as in a movie theatre.

• THX Select2 Plus

Before any home theatre component can be THX Select2 Plus

certified, it must incorporate all the features above and also pass a

rigorous series of quality and performance tests. Only then can a

product feature the THX Select2 Plus logo, which is your guarantee

that the Home Theatre products you purchase will give you superb

performance for many years to come. THX Select2 Plus requirements

cover every aspect of the product including pre-amplifier and power

amplifier performance and operation, and hundreds of other

parameters

in both

the digital and analog domain.

• THX Surround EX

THX Surround EX - Dolby Digital Surround EX is a joint development

of Dolby Laboratories and the THX Ltd. In a movie theater, film

soundtracks that have been encoded with Dolby Digital Surround EX

technology are able to reproduce an extra channel which has been

added during the mixing of the program. This channel, called

Surround Back, places sounds behind the listener in addition to the

currently available front left, front center, front right, surround right,

surround left and subwoofer channels. This additional channel

provides the opportunity for more detailed imaging behind the

listener and brings more depth, spacious ambience and sound

localization than ever before. Movies that were created using the

Dolby Digital Surround EX technology, when released into the home

consumer market may ex

ibit wording to that effect on the

packaging. A list of movies created using this technology can be

found on the Dolby web site at www.dolby.com.

Only amplifier and controller products bearing the THX Surround EX

logo, when in the THX Surround EX mode, faithfully reproduce this

new technology in the home.

This product may also engage the “THX Surround EX” mode during

the playback of 5.1 channel material that is not Dolby Digital

Surround EX encoded. In such case the information delivered to the

Surround Back channel will be program dependent and may or may

not be very pleasing depending on the particular soundtrack and the

tastes of the individual listener.

• Boundary Gain Compensation™

Depending on the listener’s and the subwoofer’s position, the listener

may experience an excessive bass effect. This feature compensates

for excessive bass resulting from a boundary gain effect. This feature

is designed to operate when used with a subwoofer certified to THX

Select2™ specifications.

• THX Loudness Plus Description

THX Loudness Plus is a new volume control technology featured in

THX Ultra2 Plus™ and THX Select2 Plus™ Certified amplifiers. With

THX Loudness Plus, home theater audiences can now experience the

rich details in a surround mix at any volume level. A consequence of

turning the volume below Reference Level is that certain sound

elements can be lost or perceived differently by the listener. THX

Loudness Plus compensates for the tonal and spatial shifts that occur

when the volume is reduced by intelligently adjusting ambient

surround channel levels and frequency response. This enables users

to experience the true impact of soundtracks regardless of the volume

setting. THX Loudness Plus is automatically applied when listening in

any THX listening mode. The new THX Cinema, THX Music, and THX

Games modes are tailored to apply the proper THX Loudness Plus

settings for each type of

ontent.

• ASA Description

ASA is a proprietary THX technology which processes the sound fed

to 2 side and 2 back surround speakers to provide the optimal

surround sound experience. When you set up your home theater

system using all eight speaker outputs (Left, Center, Right, Surround

Right, Surround Back Right, Surround Back Left, Surround Left and

Subwoofer), be sure to go to the THX Audio Set-up screen and choose

the setting that most closely corresponds to the speaker spacing,

which will re-optimize the surround sound-field. ASA is used in three

modes; THX Ultra2 Cinema, THX Ultra2 Music and THX Ultra2 Games.

VSX-1120_UXJCB.book 95 ページ２０１０年３月１０日　水曜日　午後２時２分

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