Pioneer VSX-47TX User Manual download pdf (Page 100)

100

Techno Tidbits & Problem-solving

THX

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THX Cinema™ processing :THX is an exclusive set of standards and technologies established by the world-renowned film

production company, Lucasfilm Ltd. THX grew from George Lucas' personal desire to make your experience of the film

soundtrack, in both movie theaters and in your home theater, as faithful as possible to what the director intended.

Movie soundtracks are mixed in special movie theaters called dubbing stages and are designed to be played back in movie

theaters 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 theater environment into

the home, correcting the tonal and spatial errors that occur. On this product, when the THX indicator is on, THX features are

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

Dolby Digital Surround EX

This new recording technology is able to play 6.1 channel sound and was developed in a collaboration between

Dolby Laboratories and Lucasfilm, Ltd. for the film "Stars Wars: The First Episode", the first movie ever to be

made with Dolby Digital Surround EX technology. In a movie theater this format affords the listener vivid

surround sound experience replete with the effect of sounds flying overhead, even for those seated towards the

sides of the theater.

Dolby Digital Surround EX contains surround back channels which are dubbed into the soundtrack in studio. The

channels are encoded into the left and right channels of the soundtrack so this format can be compatible with

Dolby Digital 5.1 channel decoding. For a list of movies that contain Dolby Digital Surround EX soundtracks see

Dolby website at: http://www.dolby.com

THX Surround EX technology was developed for movie theater use originally but has been extended for home

theater use and consumers can no benefit from this excellent, realistic sound format. (For more details see "THX

Surround EX" on the next page.) This unit is equipped with a THX Surround EX decoder.

DTS

DTS has been adopted as a sound recording format in the movie theaters since the release of “JURASSIC

PARK” in 1993, and has a good reputation for high quality sound and dynamic surround effects.

In this system, 6 channels of digital sound are recorded on CD-ROM. DTS adopts a simultaneous playback

format. With a low rate of compression of sound signals and a high rate of transmittance, a higher sound quality

format is produced. For this reason, the format is being introduced in more and more movie theaters, and is

being adopted for home use as DTS Digital Surround. When used with movies it's called DTS-LD DVD and for

music software (5.1 channel CD) as DTS-CD .

DTS-ES

DTS launched a new surround format in November 2000. This has come to be known as DTS Extended

Surround or simply DTS-ES. The technology has been advanced to include two new home formats DTS-ES

Discrete 6.1 format, and DTS-ES Matrix 6.1 ch format, both are able to playback discrete, 6.1-channel content

from DVDs and CDs. Both of these formats are compatible with a conventional DTS 5.1 ch decoder. In this

system each channel is encoded and decoded individually, adding to the separation of the channels. Since DTS

adds a third surround channel, the surround back channel, the realism and all-encompassing nature of the sound

reaches levels not seen before in home theater. This unit is equipped with a DTS-ES decoder.

DTS Neo:6

This is a matrix decoding technology that transforms two-channel sources into 6.0 channel surround sound.

There are two modes, "Cinema Mode" and "Music Mode".

DTS 96/24

This high-quality format will be used for software which will be available from November, 2001. For compatibility

with equipment that was produced before this format was made, DVD players can play this software using a

conventional DTS 5.1ch decoder. This unit is equipped with a DTS 96 kHz/24 bit decoder to take advantage of

the higher sound quality available.

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