Manual

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Dolby Surround

(1} Dolby Digital (DoIby Surround AC-3)

Dolby Digital s the multi-channel digital signal format developed by Dolby Laboratories

Dolby D gital consists of up to "51" channels _ front left, front right, center, surround left, surround right,

and an add tional channel exclusively reserved for additional deep bass sound effects (the Low Frequency

Effects - LFE - channel, also called the "t " channel, containing bass frequencies of up to 120 Hz)

Unlike the analog Dolby Pro Logc format, Dolby Digi[al's main channels can all contain full range sound

information, from the lowest bass, up to the highest frequencies - 22 kHz The signals within each channel

are d stinct from the others, allowing p_npoint sound hag ng, and Dolby Digital offers tremendous dynamic

range from the most powerful sound effects to the quietest, softest sounds, free from noise and distortion

Dolby Digital and Dolby Pro Logic

Conlpa [so/ of home st,round Doloy Digital Doloy Pro Logic

systems

NO recorded charlr/es (e e¥_e/ts) 51 ch 2 ch

NO playbackchanr/e s 51 ch 4 ch

Playbackcharlr/e s (max} L, R C, SL SR SW L, R C, S (SW recommended}

Dgital discrete processng DolbyDigital rAG3) Analog matrx processing Dolby

Audo processi/g encoding/decoding Surrou/d

High frequency playback lirnt of 20 kHz 7 kHz

su round cha/he

• Dolby Digital compatible media and pIayback methods

Marks indicat ng Dolby Digital cornpat bilky: Ilrl[_] and iTl_]_]

=I,ITAL m,ZOImlTAL

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

Media Dolby Dgtal output iacks Playback method (reference page)

Coaxa Doby Digita RF output jack Set the i/put mode to "AUTO

LD (VDP) _ I (Page 23}

DVD Optical or coaxial d g[tal output Set the i/put mode to "AUTO

(same as for PCM) _ 2 (Page 23}

Others Optical or coaxial d g[tal output Set the i/put mode to "AUTO

(satellite broadcasts, CATV etc} (same as for PCM} (Page 23}

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 iack

Please refeE 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 "(conver_ to) PCM" When playing in Dolby Digital surround on the AVR-

3802, switch the DVD player's output mode to "bit stream" In some cases players are equipped with

both "bit stream + RCM" and "PCM only" digital outputs In this case connect the "bit stream + PCM r,

Jacks to the AVR-3802

(2) Dolby Pro Logic ]1

• Dolby Pro-Logic ]] is a new multFchannel playback format developed by Dolby Laboratories using

feedback logic steering technology and offering improvements over conventional Dolby Pro Logic circuits

• Dolby Pro Logic l] can be used to decode not only sources recorded in Dolby Surround (_) but also

regular stereo sources into five channels (front left, front rightr centel, surround left and surround right) to

achieve surround sound

• Whereas with conventional Dolby Pro Logc the surround channel playback frequency band was limited,

Dolby Pro Logic R offers a wider band range (2g 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 Logc ]1they 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 27)

Sources recorded in Dolby Surround

These are sources m 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 ]_/

Decodng these signals with Dolby Pro Logic makes t 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

,1 2-channe PCM stereo signals

,2; 2-channe Dolby Digtal signals

When either of these signals is input to the AVR-3802, the surround mode is automatically set to Dolby

Pro Logic ][ 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: nn_]

Manufactured under license from Dolby Laboratories

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