Meridian Digital Surround Controller 561, Руководство пользователя

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Introduction
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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, at a quality
indistinguishable from conventional CD.
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.
In addition, it is widely available in US satellite broadcasts.
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.
MLP
MLP (Meridian Lossless Packing) is a format designed for DVD
audio which allows multiple audio channels, of up to 192kHz
24-bit quality, to be stored on a DVD without losing any
information. It can also be used to store four-channel audio on a
standard CD without any loss of quality.
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 561 Digital Surround Controller 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 561 produces
excellent results with these formats.
Pro Logic
The Pro Logic preset is recommended for decoding Dolby
Surround encoded video and LaserDisc soundtracks, and films
on television. Such materials are usually identified by a Dolby
Surround symbol on the packaging, or displayed on the film
before the programme.