Denon AVR-686 Operations Instructions download pdf (Page 49)

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, 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 sound field

[]D[_ []

Listening room

sound field

r_Dr_ D

SL I ISR

, r-n rn I

t ..........

Multiple surround speakers

(For 6.1-channel system)

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.

SsLB: Surround L channel

SR Surround R channel

Surround back channel (1 speaker or 2 speakers)

• Other types of audio:

These signals are designed to recreate a 360 ° sound field using

three to five speakers.

SL SR

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.

These two types of sources thus have different properties, and

different speaker settings, particularly for the surround speakers,

ale lequiled in oldel to achieve the ideal sound,

Additional Information

A 6.1-channel system is a conventional 5.1-channel system to

which the "surround back" (SB) channel has been added. This

makes it easy to achieve sound positioned directly behind the

listener, something that was previously difficult with sources

designed for conventional multi surround speakers. In addition,

the acoustic image extending between the sides and the rear is

narrowed, thus greatly improving the expression of the surround

signals for sounds moving from the sides to the back and from

the front to the point directly behind the listening position.

Change of positioning and acoustic image

with 5.1-channel systems

- "_\\ I/" "-d

r_ r_ rm.r_ rm r_

_\ ,, //

-. _ALmh .." ".. SR £h_- -

Movement of acoustic image from SR to SL

Change of positioning and acoustic image

with 6.1-channel systems

[]Dr_ D

//_ \\

r,SL oh 3Rch I

, r_ rm i'm i"-= i'm r_

SB ch /

Movement of acoustic image from SR to SB to SL

I ENGLISH I

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 60 61

Comments to this Manuals

No comments

Denon AVR-686 Operations Instructions Page 49

Comments to this Manuals

Related products and manuals for AV receivers Denon AVR-686