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User's Manual
44
CHAPTER 5
For multi-channel sources, the
TGP-5 will automatically select the
correct mode from one of the follow-
ing:
DOLBY DIGITAL
DOLBY DIGITAL EX
DTS
DTS-ES MATRIX
DTS-ES DISCRETE
Dolby Digital and DTS are “5.1”
sur round systems with fi 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 fi 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 TGP-5 cannot de-
code the digital information.
DOL BY DIGITAL (5.1)
This mode is available if the
TGP-5 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 (6.1/ 7.1)
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 fi lls in the area
behind you with a completely
separate full-range channel.
The TGP-5 has the option of con-
necting one or two surround back
speakers. The calibration and
speaker size options can create a
seamless surround fi 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 TGP-5 will also create the
surround back channel if you are
playing a 5.1 source.
DOLBY DIGITAL with PRO LOGIC IIx
Besides Dolby Digital and Dolby
EX, you may change the Mode
during Dolby Digital playback us-
ing the Mode keys on the remote
or front panel, to Dolby Pro Logic
IIx Music and Dolby Pro Logic IIx
Movie. These two modes create
enhanced stereo back surrounds.
Listen to each Mode to determine
which sounds best on a given
movie.
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
Movie is not an optional mode
when the surround back channel
is confi gured 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 soundfi eld
Surround Modes for Multi-Channel Sources
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 fi 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. Try it out.
DTS (5.1)
This mode is available if the TGP-
5 automatically detects that a DTS
en cod ed source is present at one
of it’s digital inputs. Look for the
DTS Logo on DVDs, LaserDiscs,
CDs and other sources.
Make sure that you set your
player to output DTS bitstreams.
DTS must also be selected on the
disc's menu.
DTS ES (6.1)
All DTS-ES sources have the
surround back channel matrixed
in the left and right surrounds.
Newer DVD releases also have a
discrete surround back channel, in
addition to the same information
matrixed.
DISCRETE ES sources: the
TGP-5 DTS-ES discrete decoder
will decode the discrete surround
back channel. It also removes the
surround back matrix from the left
and right surrounds, and restores
them to be fully independent
channels.
MATRIX ES sources: If there is no
discrete surround back channel,
the TGP-5 decodes the matrixed
surround back channel from the
left and right surrounds, and
restores them to be fully indepen-
dent channels.