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Dolby Digital plus Matrix
operating manual
Dolby D
Matrix
(only available if your
AV32R is equipped with
the THX Surround EX
Plus option)
channel will be program dependent and may or may not be
pleasing depending on the particular soundtrack and the tastes of
the individual listener.
If your AV32R doesn’t include the THX Surround EX Plus option
then you will not be able to extract the back channel information.
You will not miss anything, just the spatial distribution of the
surround sound will not provide the same depth and spacious
ambience (as the sound, intended for the back channel is equally
replayed through the left and right surround loudspeakers).
Home cinema is using many different surround decoding formats.
In the paragraph above Dolby D THX Surround EX, the
format certified by Dolby Laboratories and Lucasfilm Ltd. to play
movies, recorded in Dolby EX, was explained. THX Surround EX
activates, as the name implies, both the matrix decoder for the
back channels and THX post processing. However, some Dolby
EX encoded DVDs
(1)
are already optimised for the use at home,
meaning they do not need THX post processing again. In this
instance you should use Dolby D Matrix.
You can also activate ‘Dolby D Matrix’ during the
playback of standard Dolby Digital 5.1 recordings. In such a
case the information delivered to the Surround Back channel will
be program dependent and may or may not be pleasing
depending on the particular soundtrack.
1. Unfortunately recording studios don’t indicate if a movie is already modified for
home use, leaving it to you to decide which processing mode you prefer
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