Denon AVR 2805 - AV Receiver Operations Instructions download pdf (Page 87)

r_ ADDITIONAL INFORMATION

There are currently various types of multi-channel signals (signals or formats with more than two channels).

• Types of multi-channel signals

Dolby Digital, Dolby Pro Logic, DTS, Mgh definition 3-1 signals (Japan MUSE Hi-Vision audio), DVD-Audio, SACD (Super Audio CD), MPEG multi-

channel audio, etc.

"Source" here does not refer to the type of signal (format) but the recorded content. Sources can be divided into two major categories.

• Types of sources

• Movie audio Signals created to be played in movie theaters. In general sound is recorded to be played in movie theaters equipped

with multiple surround speakers, regardless of the format (Dolby Digital, DTS, etc.).

Movie theater soundfield

E]Dr_ []

SL_ ISR

Irl

_IU

_rm rm rm rm n n I

I i

{....... sa........ ,

Multiple surround speakers

/For 6.1-channel system)

Listeningroom sound field

123D [23

SL', ',SR

u 0 u

SB "

-'{ rm rm ,

In this case it is important to achieve the same sense of

expansion as in a movie theater with the surround channels.

To do so, in some cases the number of surround speakers is

increased (to four or eight) or speakers with bipolar or dipolar

properties are used.

SL: Surround Lchannel

SR: Surround R channel

SB: Surround back channel

• Other types of audio These signals are designed to recreate a 360 ° sound field using three to five speakers.

In this case the speakers should surround the listener from all sides to create a uniform sound

field from 360 °. Ideally the surround speakers should function as "point" sound sources in the

same way as the front speakers.

SL SR

These two types of sources thus have different properties, and different speaker settings, particularly for the surround speakers, are required

in order to achieve the ideal sound.

The AVR-2805/985 is equipped the function of surround speakers selection that makes it possible te change the settings according te the

combination of surround speakers being used and the surrounding environment in order to achieve the ideal surround sound for all sources.

This means that you can connect a pair of bipolar or dipolar surround speakers (mounted on either side of the prime listening position), as well

as a separate pair of direct radiating (monopolar) speakers placed at the rear corners of the listening room.

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Denon AVR 2805 - AV Receiver Operations Instructions Page 87

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