49
THX Cinema
operating manual
Movie soundtracks are mixed in special movie theatres called
dubbing stages and are designed to be played back in movie
theatres with similar equipment and conditions. They are not
altered when recorded onto LaserDisc, VHS tape, DVD, etc., and
require additional processing for best home cinema playback.
THX engineers have developed patented technologies to accurately
translate the sound from the movie theatre environment into the home,
correcting the tonal and spatial errors that occur. When THX Cinema
is selected, THX Cinema post-processing is automatically added after
the source has been decoded. THX processing consists of three major
techniques: Re-Equalization, which adjusts the tonal balance of a
film soundtrack for reproduction in the smaller home cinema
environment; Timbre Matching, which filters the information going
to the surround speakers so that they more closely match the tonal
characteristics of the sound coming from the front speakers; and
Adaptive Decorrelation, which slightly changes one surround
channels time and phase relationship with respect to the other
surround channel. This expands the listening position and creates –
with only two speakers – the same spacious surround experience as
in a movie theatre which usually has many surround speakers.
To apply THX Cinema post-processing, press the
THX Cinema
button on the front panel or the
THX
key on the AV32R Remote.
The THX logo will light in the display window. Press either button
or key again to turn THX Cinema post-processing off.
Lucasfilm
THX
Cinema
surround
1
2
3
normal
4
5
6
display
7
8
9
tape
10
0
THX
time
subtitle
audio
title
angle
def
abc
space
ghi
jkl
mno
+/–
pqrs
tuv
wxyz
shift
M O D E
surround
THX Cinema
mute
display
GRR00892.01-AV32R OPER 3.7x 6/14/02 9:34 AM Page 49
