User guide

Introduction

DTS

DTS uses an audio compression technique to encode five

channels of audio onto a digital signal. The DTS format is used

to encode multi-channel film soundtracks on LaserDiscs and

DVD-Video discs.

In addition, a high data-rate version of DTS can be used to

compress five channels of CD-quality audio into the same space

as two channels of unencoded sound, allowing a DTS music CD

to provide over an hour of five-channel music.

MPEG Surround

MPEG Surround is the preferred audio format for DVD in PAL

territories, and along with Dolby Digital is a contender as the

standard for music and performance videos on DVD worldwide.

THX

THX versions of Dolby Digital, MPEG Surround, and DTS are

provided to give a better match between the original soundtrack

and typical domestic listening conditions.

THX Surround EX and Meridian EZ

THX Surround EX allows 5.1-channel film soundtracks to be

encoded with an extra surround channel to give improved

surround imaging with four surround speakers. Meridian EZ

provides an alternative for THX Surround EX encoded material,

and can also be used to give improved surround imaging with

DTS ES encoded material.

Multi-channel sources encoded onto

two channels

Several systems have been developed for encoding multi-

channel sources onto a standard two-channel analogue signal

so that they can be reproduced by a conventional stereo

system, or decoded with special equipment for multi-channel

reproduction. The 568.2 Digital Surround Processor provides

decoding of the two most important of these, Ambisonic and

Dolby Surround. Although the channel separation cannot be as

good as with the digital multi-channel formats, the 568.2

produces excellent results with these formats.

Pro Logic II

Dolby Pro Logic II is a decoding algorithm designed for two-

channel sources, whether or not they are encoded for Dolby