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User's Manual
43
CHAPTER 5
For multi-channel sources, the
TGR-401 will automatically select the
correct mode from one of the follow-
ing:
DOLBY DIGITAL
DOLBY DIGITAL EX
DOLBY DIGITAL PLIIX MUSIC
DOLBY DIGITAL PLIIX MOVIE
DTS DIGITAL SURROUND
DTS NEO:6
DTS SUNFIRE
DTS-ES MATRIX
DTS-ES DISCRETE
DTS 96/24
DTS 96/24 NEO:6
DTS 96/24 SUNFIRE
DTS-ES 96/24 MATRIX
DTS-ES 96/24 DISCRETE
Dolby Digital and DTS are “5.1”
sur round systems with ¿ ve main chan-
nels: left front, center, right front, left
sur round, and right surround. Each
channel can play the full frequency
range and is independent of the
other chan nels. The “.1” denotes the
sub woof er channel which plays the
low frequency effects (LFE), also in de -
pen dent of the other channels.
Dolby Digital EX and DTS ES offer
"Extended Surround." Both systems
offer a surround back channel which
effectively ¿ lls in the otherwise empty
soundspace behind you.
If you want to try one of the modes
on the previous page, you should se-
lect a 2-channel output from your DVD
player's options menu.
NOTE: In your DVD player's audio
setup menu, set the digital output
to BITSTREAM. If this is not set
correctly, the TGR-401 cannot
decode the digital information.
DOL BY DIGITAL
This mode is available if the
TGR-401 au to mat i cal ly detects a
Dolby Digital en cod ed source on
the currently selected input. You
should look for the Dolby Digital
Logo on DVDs, LaserDiscs and
other sources.
Many DVDs have the option of
a Dolby Surround, Dolby Digital
or Stereo soundtrack. Follow the
instructions in your DVD player's
manual to output Dolby Digital
bitstreams. Dolby Digital must
often be selected from the Disc's
menu.
DOLBY DIGITAL EX
Dolby Digital EX mode is primarily
for playback of Dolby Digital Sur-
round EX encoded soundtracks.
One advantage over Dolby Digital
playback is that it ¿ lls in the area
behind you with a completely
separate full-range channel.
The TGR-401 has the option of
connecting one or two surround
back speakers. The calibration
and speaker size options can cre-
ate a seamless surround ¿ eld.
If you have no surround back
speakers, the extra information
is sent to the standard surrounds
and no material is lost. (Set the
surround back speakers to OFF in
the SPEAKER SIZE menu).
The TGR-401 will also create the
surround back channel if you are
playing a 5.1 source.
Surround Modes for Multi-Channel Sources
DOLBY DIGITAL with PRO LOGIC IIx
Besides Dolby Digital and Dolby
EX, you may change the Mode
to Dolby Pro Logic IIx Music or
Dolby Pro Logic IIx Movie. These
modes create enhanced stereo
surround backs. Listen to each
Mode to ¿ nd which sounds best.
Dolby Digital uses a maximum
of 5.1 channels and does not
support surround back chan-
nels. Dolby EX supports a mono
surround back channel (or dual-
mono surround back channels if
both left and right surround backs
are used). Dolby Pro Logic IIx is
not an optional mode when the
surround back channel is con¿ g-
ured for only one speaker.
Dolby Digital plus Pro Logic IIx
Movie or Music uses the Dolby
Pro Logic IIx decoder to create a
stereo surround back sound¿ eld
from the stereo content of the left
and right surrounds. For example,
Dolby Pro Logic IIx Movie directs
or "steers" some of the left sur-
round signal to the left surround
back, whereas Dolby Pro Logic
IIx Music lets the left surround
remain intact and ¿ lls in the left
surround back with additional
material.
Although movies are encoded
with either Dolby Digital or Dolby
EX, many sound even better
when using the Dolby Pro Logic
IIx modes.