Glossary, OolbySunound, Dolby Pro Logic Surround

Glossary

Center mode

Speaker setting to enhance the Dolby Pro

Logic Surround mode Select one of the

followilxg four center modes according to

your speaker system

•NORMAL mode

Select NORMAL mode if you connect a

small-sized center speaker to this speaker

system. Since a small speaker cannot

produce enough bass, the bass sound of tee center chamxel is output from the front speakers

FrontSmallFront

speaker (L} center speaker speaker (R)

Rear		Rear
speaker(L}	_	speaker(R)
_J/r
The test tone	is output	as shown on page l 1

•WiDE mode

Select WIDE mode if you connect a center

speaker equivalent to the two front

speakers. With the WIDE mode, you can

take full advantage o_ Dolby Surround sound

FrontFront

speaker(L) Centerspeaker speaker(R)

RearRear

speaker(L)speaker(R)

• PHANTOM

mode

5.1-channel input (5.1 CH IN) jacks

SeLect PHANTOM

mode

if vou

not

These

jacks

are

used

to input

decoded multi-

want to

use

the

center

speaker

output

channel

format

audio

signals

(eg.,

Dolhy

sound.

The

sound of

the

center

channel

Digital

(AC-3),

DTS,

etc.), allowing

you

output

from

the

front

speakers

enjoy

5.1 channel

surround

sound.

Use

these

Front

jacks

connect

multi-channel

decoder

or a

speaker

(L)

speaker

(R)

DVD

player

with

a built-in

muhi-channe]

decoder

Rt._r	Rear
speaker (L)	speaker (R)

The test tone is output as follows:

*Front

Rear I

Delay time

Time lag between the surround sound output

from the front speakers and that from the rear

speakers By adjusting the delay time of the

rear speakers, you can obtain the feeling of

presence Make the delay time longer when

you have placed the rear speakers in a small

room or close to your listening position, and make it shorter when you have placed them

in a large room or _ar _rom your listening

position,

Dolby Pro Logic Surround

As one method of decoding Do]by Surround, Dolby Pro Logic Surround produces four channels from two-channel sound.

Compared with the former Dolby Surround

system, Dolby Pro Logic Surround

reproduces left-to-right panning more naturally and localizes sounds more precisely. To take full advantage of Dolbv Pro Logic Surround, you should have one pair of rear speaker_ and a center speaker. The rear speakers output monaural sound.

The test tone is output as shown on page 11

•3 STEREO mode

Select 3 STEREO mode if you do not want

to use the rear speakers to output sound. The sound of the rear channel is output

from the fYont speakers to let you

experience some of the surround sound

effect without using rear speakers

FrontFront speaker (L) Center speaker speaker (R)

The test tone is output as follows:

FFront (L} -_ Center -b Front (R) 1

OolbySunound

Encoding and decoding system for Dolby

Surround sound for consumer use. Dolby

Surround decodes the extra channels in the

Dolby Surround-encodedsound tracks of

movie videos and TV programs and produces sound effects and echoes that make the action

seem to envelope you.

Dolby Digital (AC-3)

This sound format for movie theaters is more

advanced than Dolby Pro Logic Surround. In

this format, the rear speakers output stereo

sound with an expanded frequency range and

a subwoofer channel for deep bass is

independently provided This format is also

called "51" because the subwoofer channel is

counted as 01 channel (since it functions only

when a deep bass effect is needed). All six

channels in this format are recorded

separately to realize superior channel

s_paration _-urthermoT_, since atl the signals

are processed digitally, less signal

degradation occurs The name "AC 3" comes from the fact that it is the third audio coding

method to be dex eloped by the Dolby

Laboratories Licensing Corporation