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Additional information Additional information
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[2] DTS Digital Surround
Digital Theater Surround (also called simply DTS) is a multi-
channel digital signal format developed by Digital Theater
Systems.
DTS offers the same “5.1” playback channels as Dolby Digital
(front left, front right and center, surround left and surround right)
as well as the stereo 2-channel mode. The signals for the
different channels are fully independent, eliminating the risk of
deterioration of sound quality due to interference between
signals, crosstalk, etc.
DTS features a relatively higher bit rate as compared to Dolby
Digital (1234 kbps for CDs and LDs, 1536 kbps for DVDs) so it
operates with a relatively low compression rate. Because of this
the amount of data is great, and when DTS playback is used in
movie theaters, a separate CD-ROM synchronized with the film
is played.
With LDs and DVDs, there is of course no need for an extra disc;
the pictures and sound can be recorded simultaneously on the
same disc, so the discs can be handled in the same way as discs
with other formats.
Other media include CDs recorded in DTS. These are the same
discs as conventional CDs (recorded in 2 channels) but include
5.1 channel surround signals. They do not include images, but
they do permit surround playback on the S-101 and on CD
players.DTS surround track playback offers the same intricate,
grand sound as in a movie theater, right in your own listening
room.
2 DTS compatible media and playback methods
Marks indicating DTS compatibility: and
The following are general examples. Also refer to the player’s
operating instructions.
“DTS” and “DTS Digital Surround” are registered trademarks
of Digital Theater Systems, Inc.
“DTS” and “DTS Virtual” are trademarks of Digital Theater
Systems, Inc.
1: DTS signals are recorded in the same way on CDs and LDs
as PCM signals. Because of this, the un-decoded DTS
signals are output as random “hissy” noise from the CD or
LD player’s analog outputs. If this noise is played with the
amplifier set at a very high volume, it may possibly cause
damage to the speakers. To avoid this, be sure to switch
the input mode to “AUTO” or “DTS” before playing CDs or
LDs recorded in DTS. Also, never switch the input mode to
“ANALOG” or “PCM” during playback. The same is true
when playing CDs and LDs recorded in DTS on the S-101
or on LD/DVD compatible players. With DVDs, the DTS
signals are recorded with a special recording method so
there is no problem. For DVDs, the DTS signals are
recorded in a special way so this problem does not occur.
2: The signals provided at the digital outputs of a CD or LD
player may undergo some sort of internal signal processing
(output level adjustment, sampling frequency conversion,
etc.). In this case the DTS-encoded signals may be
processed erroneously, in which case they cannot be
decoded by this unit, or may only produce noise. Before
playing DTS signals for the first time, turn down the master
volume to a low level, start playing the DTS disc, then
check whether the DTS indicator on this unit ( page 46)
lights before turning up the master volume.
3: To play in DTS Digital Surround on the S-101, set “SETUP”
– “AUDIO SETUP” – “DIGITAL OUT” to “NORMAL” in the
setup. (The factory default is “NORMAL”.)
Playback method
(reference page)
Dolby Digital output
terminals
Media
CD
LD (VDP)
DVD
Optical or coaxial digital
output
(same as for PCM)
2
Optical or coaxial digital
output
(same as for PCM)
2
Optical or coaxial digital
output
(same as for PCM)
3
Set the input mode to
“AUTO” or “DTS”
( page 46).
Never set the mode to
“ANALOG” or “PCM”.
1
Set the input mode to
“AUTO” or “DTS”
( page 46).
Never set the mode to
“ANALOG” or “PCM”.
1
Set the input mode to
“AUTO” or “DTS”
( page 46).
Dolby Virtual Speaker technology uses proprietary technology of
Dolby Laboratories to create a virtual surround sound field using
only two speakers for the front channels, allowing the user to
experience sound as if surround speakers were actually being
used.
Reference mode Wide mode
: 2 front channels
: Virtual sound field created with the
Dolby Virtual Speaker mode
Dolby Virtual Speaker
2 Features of Dolby Virtual Speaker sound
• Accurate surround sound field positioning
The virtual surround speakers are positioned at 105° to the left
and 105° to the right.
• Multi-channel programs played according to the producer’s
intentions
The sound of the different channels is played in the position set
upon mixing. For example, sound set at the rear left is heard
from the rear left.
• Stereo programs played in surround
The Dolby Pro Logic II circuit is used together with the Dolby
Virtual Speaker circuitry to create a rich virtual surround sound
field with stereo programs as well.
• Selecting the listening mode
Two listening modes are provided: Reference and Wide.
Dolby Headphone is a 3D sound technology developed jointly by
Dolby Laboratories and Lake Technology of Australia achieving
surround sound with regular headphones.
Normally when using headphones all the sounds are sounded in
the head, making it uncomfortable to listen with headphones for
long periods of time. Dolby Headphone simulates speaker
playback in a room and positions the sound sources to the front
or the sides, outside of the head, achieving a powerful sound
similar to that of a movie theater or home theater. This
technology is aimed mainly at multi-channel audio or video
equipment including Dolby Digital or Dolby Pro Logic Surround
decoding functions and operates inside a high performance
digital signal processing chip (DSP).
The Dolby Headphone mode can be used not only with multi-
channel sources but also with stereo programs.
Dolby Headphone
