Sunfire IV 사용자 설명서

User's Manual

CHAPTER 5

For multi-channel sources, the 

TGIV will automatically select the cor-
rect mode from one of the following:

      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 TGIV cannot decode 
the digital information. 

This mode is available if the TGIV 
au to mat i cal ly detects a Dolby 
Digital en cod ed source on the cur-
rently selected input.

You should look for the Dolby 
Digital Logo on DVDs, LaserDiscs 
and other sources. 

Many DVDs have the option of a 
Dolby Pro Logic, Dolby Digital or 
Stereo soundtrack. You may have 
to follow the instructions in your 
DVD player's instruction manual 
for your player to output Dolby 
Digital bitstreams. Dolby Digital 
must often be selected from the 
Disc's menu.

Dolby Digital EX mode is primarily 
for playback of Dolby Digital Sur-
round EX encoded soundtracks. 
One of its advantages over Dolby 
Digital playback is that it fi lls in 
the area behind the listener with 
a completely separate full-range 
channel.

The TGIV has the option of 
connecting one or two surround 
back speakers. The calibration 
and speaker size options allow 
a seamless surround fi eld to be 
created. 

If you do not have the surround 
back speakers connected, then 
the extra information is sent to the 
standard surrounds and no mate-
rial is lost. (Set the surround back 
speakers to OFF in the SPEAKER 
SIZE menu).

The TGIV will also create the 
surround back channel if you are 
playing a 5.1 source.

Note: Dolby Digital EX will play 
stereo in the surround back 
channels if the Dolby Back Sur-
round option is set to PLIIx in the 
MODES OSD menu (see Page 33 
for more details).

Surround Modes for Multi-Channel Sources

This mode is available if the TGIV 
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.

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 
TGIV 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 TGIV decodes the matrixed 
surround back channel from the 
left and right surrounds, and 
restores them to be fully indepen-
dent channels.