Denon S-301 User Manual download pdf (Page 69)

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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-301 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 ADV-

S301 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 51)

lights before turning up the master volume.

3: To play in DTS Digital Surround on the S-301, set “SETUP”

– “AUDIO SETUP” – “DIGITAL OUT” to “NORMAL” in the

setup. (The factory default is “NORMAL”.)

Playback method

(reference page)

DTS Digital output

terminals

Media

LD (VDP)

DVD

Optical or coaxial digital

output

(same as for PCM)

Optical or coaxial digital

output

(same as for PCM)

Optical or coaxial digital

output

(same as for PCM)

Set the input mode to

“AUTO” or “DTS”

( page 51).

Never set the mode to

“ANALOG” or “PCM”.

Set the input mode to

“AUTO” or “DTS”

( page 51).

Never set the mode to

“ANALOG” or “PCM”.

Set the input mode to

“AUTO” or “DTS”

( page 51).

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

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Denon S-301 User Manual Page 69

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