Additional information 13 – Pioneer SC-LX82 User Manual

Page 142

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Additional information

13

142

En

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 exhibit 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.

Advanced Speaker Array (ASA)

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) placing the two Surround Back speakers close together
facing the front of the room will provide the largest sweet spot. If for
practical reasons you have to place the Surround Back speakers
apart, you will need to go 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 new modes; THX Ultra2/Select2 CINEMA, THX
Ultra2/Select2 MUSIC and THX Ultra2/Select2 GAMES.

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
Ultra2/Select2™ specifications.

THX Music

For the replay of multi-channel music the THX MusicMode should be
selected. In this mode THX ASA processing is applied to the surround
channels of all 5.1 encoded music sources such as DTS, Dolby Digital
and DVD-Audio to provide a wide stable rear soundstage.

THX Games

For the replay of stereo and multi-channel game audio the THX
Games Mode should be selected. In this mode THX ASA processing
is applied to the surround channels of all 5.1 and 2.0 encoded game
sources such as analog, PCM, DTS and Dolby Digital. This accurately
places all game audio surround information, providing a full 360
degree playback environment. THX Games Mode is unique as it gives
you a smooth transition of audio in all points of the surround field.

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 content.

THX Ultra2/Select2 Cinema

THX Ultra2/Select2 Cinema mode plays 5.1 movies using all 8
speakers giving you the best possible movie watching experience. In
this mode, ASA processing blends the side surround speakers and
back surround speakers providing the optimal mix of ambient and
directional surround sounds.
DTS-ES (Matrix and 6.1 Discrete) and Dolby Digital Surround EX
encoded soundtracks will be automatically detected in Ultra2/Select2
Cinema mode if the appropriate flag has been encoded.

Some Dolby Digital Surround EX soundtracks are missing the digital
flag that allows automatic switching. If you know that the movie that
you are watching is encoded in Surround EX, you can manually select
the THX Surround EX playback mode, otherwise THX Ultra2/Select2
Cinema mode will apply ASA processing to provide optimum replay.

THX Ultra2/Select2 Music

For the playback of multi-channel music the THX Ultra2/Select2
Music mode should be selected. In this mode THX ASA processing is
applied to the surround channels of all 5.1 encoded music sources
such as DTS, Dolby Digital and DVD-Audio to provide a wide stable
rear soundstage.

THX Ultra2/Select2 Games

For the playback of stereo and multi-channel game audio the THX
Ultra2/Select2 Games mode should be selected. In this mode THX
ASA processing is applied to the surround channels of all 5.1 and 2.0
encoded game sources such as analog, PCM, DTS and Dolby Digital.
This accurately places all game audio surround information,
providing a full 360 degree playback environment. THX Ultra2/Select2
Games mode is unique as it gives you a smooth transition of audio in
all points of the surround field.

THX, the THX logo, Ultra2 Plus and Select2 Plus are trademarks of THX
Ltd. which may be registered in some jurisdictions. All rights reserved.
All other trademarks are the property of their respective owners.

SC-LX82_LX72.book Page 142 Thursday, April 23, 2009 7:05 PM

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