Denon AVR 1603 - AV Receiver Operations Instructions download pdf (Page 50)

• Dolby Digital and Dolby Pro Logic

Comparison of home surround systems

No recorded channels (elements)

No playback channels

Playback channels (max)

Audio processing

High frequency playback limit of surround

channel

Dolby Digital

51 ch

L, R, C, SL, SR, SW

Digital discrete processing Dolby Digital (AC-3) encoding/decoding

20 kHz

Dolby Pro Logic

2 ch

4 ch

L, R, C, S (SW _ recommended)

Analog matrix processing Dolby Surround

7 kHz

• Dolby Digital compatible media and playback methods

Marks indicating Dolby Digital compatibility: I'll-w----1 and L_.s_-_tla--_--_--_JL

DIQITAL • -

The following are general examples. Also refer to the player's operating instructions.

Media Dolby Digital output iacks Playback method (reference page)

LD (VDP) Coaxial Dolby Digital RF output jack Set the input mode to "AUTO"

1 (Page 30)

Optical or coaxial digital output Set the input mode to "AUTO"

DVD {same as for PCM)

-_ 2 (Page 30)

Others Optical or coaxial digital output Set the input mode to "AUTO"

(satellite broadcasts, CATV, etc) {same as for PCM) (Page 30)

1 Please use a commercially available adapter when connecting the Dolby Digital RF (AC-3RF) output jack of the LD player to the digital input

jack.

Please refer to the instruction manual of the adapter when making connection.

2 Some DVD digital outputs have the function of switching the Dolby Digital signal output method between "bit stream" and "(convert to)

PCM". When playing in Dolby Digital surround on this unit, switch the DVD player's output mode to "bit stream". In some cases players

are equipped with both "bit stream + PCM" and "PCM only" digital outputs. In this case connect the "bit stream + PCM" jacks to this

unit.

(2) Dolby Pro Logic 11

• Dolby Pro Logic [I is a new multi-channel playback format developed by Dolby Laboratories using feedback logic steering technology and

offering improvements over conventional Dolby Pro Logic circuits.

• Dolby Pro Logic 11can be used to decode not only sources recorded in Do]by Surround (-_ )but also regular stereo sources into five channels

(front left, front right, center, surround left and surround right) to achieve surround sound.

• 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 Dolby Pro Logic I[ 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 (see page

36).

._ 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 cassettes to be played on stereo VCRs, as well

as for the stereo broadcast signals of FM radio, TV, satellite broadcasts and cable TV.

Decoding these signals with Dolby Pro Logic makes it possible to achieve muki-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.

_ 2-channel PCM stereo signals

(2_ 2-channel Dolby Digital signals

When either of these signals is input to the AVR-1603/683, the surround mode is automatically set to Dolby Pro Logic [I when the

"DOLBY/DTS SURROUND" mode is selected.

• Sources recorded in Dolby Surround are indicated with the logo mark shown below.

Dolby Surround support mark: I'rlEmlwt_l

Manufactured under license from Dolby Laboratories.

"Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.

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Denon AVR 1603 - AV Receiver Operations Instructions Page 50

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