Denon AVR-1906 User Manual download pdf (Page 58)

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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, 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.

There are also music CDs recorded in DTS. These CDs include

5.1-channel surround signals (compared to two channels on

current CDs). They do not include picture data, but they offer

surround playback on CD players that are equipped with digital

outputs (PCM type digital output required).

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

Symbols indicating DTS compatibility: and

The following are general examples. Also refer to the player’s

operating instructions.

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 “hissing” 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

holds true when playing CDs or LDs on a DVD player or

LD/DVD compatible player. 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 the AVR-1906, 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 the AVR-1906

( page 23) lights before turning up the master volume.

3: A DVD player with DTS-compatible digital output is required

to play DTS DVDs. A DTS Digital Output logo is featured on

the front panel of compatible DVD players. Recent DENON

DVD player models feature DTS-compatible digital output –

consult the player’s owner’s manual for information on

configuring the digital output for DTS playback of DTS-

encoded DVDs.

Manufactured under license from Dolby Laboratories.

“Dolby”, “Pro Logic” and the double-D symbol are

trademarks of Dolby Laboratories.

• Whereas with conventional Dolby Pro Logic the surround

channel playback frequency band was limited, Dolby Pro Logic

II offers a wider band range (20 Hz to 20 kHz or greater). In

addition, the surround channels were monaural (the surround

left and right channels were the same) with previous Dolby Pro

Logic, but with Dolby Pro Logic II they are played as stereo

signals.

•Various parameters can be set according to the type of source

and the contents, so it is possible to achieve optimum decoding

( page 57).

e Dolby Pro Logic IIx

Dolby Pro Logic IIx furthers the matrix decoding technology of

Dolby Pro Logic II to decode audio signals recorded on two

channels into up to 7.1 playback channels, including the surround

back channel. Dolby Pro Logic IIx also allows 5.1-channel

sources to be played in up to 7.1 channels.

The mode can be selected according to the source. The Music

mode is best suited for playing music, the Cinema mode for

playing movies, and the Game mode for playing games. The

Game mode can only be used with 2-channel audio sources.

Sources recorded in Dolby Surround

• These are sources in which three or more channels of surround

have been recorded as two channels of signals using Dolby

Surround encoding technology.

• Dolby Surround is used for the sound tracks of movies recorded

on DVDs, LDs and video cassette tapes, as well as for stereo

broadcast signals from FM radio, TV, satellite broadcasts and

cable TV.

• Decoding these signals with Dolby Pro Logic II makes it

possible to achieve multi-channel surround playback. The

signals can also be played on ordinary stereo equipment, in

which case they provide normal stereo sound.

• There are two types of DVD Dolby surround recording signals.

q 2-channel PCM stereo signals

w 2-channel Dolby Digital signals

•When either of these signals is input to the AVR-1906, the

surround mode is automatically set to Dolby Pro Logic II when

the DOLBY/DTS SURROUND mode is selected.

2 Sources recorded in Dolby Surround are

indicated with the logo symbol shown below

Dolby Surround logo symbol:

MANUFACTURED UNDER LICENSE FROM DIGITAL

THEATER SYSTEMS, INC.

U.S. PAT. NO’S. 5,451,942; 5,956,674; 5,974,380; 5,978,762;

6,226,616; 6,487,535 AND OTHER U.S. AND WORLDWIDE

PATENTS ISSUED AND PENDING.

“DTS”, “DTS–ES”, “Neo:6”, AND “DTS 96/24” ARE

1996, 2003 DIGITAL THEATER SYSTEMS, INC. ALL RIGHTS

RESERVED.

Playback method

(reference page)

Dolby 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 19, 20).

Never set the mode to

“ANALOG” or “PCM”.

Set the input mode to

“AUTO” or “DTS”

( page 19, 20).

Never set the mode to

“ANALOG” or “PCM”.

Set the input mode to

“AUTO” or “DTS”

( page 19, 20).

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Denon AVR-1906 User Manual Page 58

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