Manual Rotel RSX-1056 (page 25 of 46) (English)

498117

Zoom out

Zoom in

1/46

English

Overview of

Surround Formats

To get the best performance from your

RSX-1056, it helps to understand the many

surround sound formats available today, to

know which decoding process to use for a

particular recording, and how to select it. This

section provides basic background informa-

tion about surround sound formats. The follow-

ing sections provide detailed operating instruc-

tions for automatic and manual selection of

surround modes.

NOTE

: The RSX-1056 has built-in amplifiers to

drive five speakers in a 5.1 channel system.

To use surround modes for 6.1 or 7.1 chan-

nel systems, you will need a separate power

amplifier to drive one or two speakers.

Dolby Surround

Dolby Pro Logic II

The most widely available surround sound

format for consumer audio/video is Dolby

Surround

, available on nearly all commer-

cial VHS tapes, many television broadcasts,

and most DVDs. Dolby Surround is the con-

sumer version of the analog Dolby Stereo system

first introduced in the film industry in 1972. It

is a matrix-encoding system that records front

left, front center, front right, and a mono sur-

round channel into a 2-channel stereo record-

ing. During playback, a Dolby Pro Logic

Pro Logic II decoder extracts each channel and

distributes it to the appropriate speakers.

The original Dolby Pro Logic decoder deliv-

ered a mono signal with reduced high-fre-

quency content to the surround speakers. A

more advanced decoder in the RSX-1056,

Dolby Pro Logic II, increases the separation

and frequency response of the surround chan-

nels for significantly improved performance

with Dolby Surround encoded recordings.

Dolby Pro Logic II decoding should be used

for any analog recording labeled “Dolby Sur-

round” or any Dolby Digital 2.0 soundtrack.

Dolby Pro Logic II does a superb job deriving

surround sound from conventional 2-channel

stereo recordings, using phase relationships

to extract front, right, center, and surround chan-

nels. A “music mode” makes Pro Logic II an

excellent choice for audio CDs.

Dolby Digital

In 1992, a digital recording system, called

Dolby Digital, was first used in the film indus-

try. Dolby Digital is a recording/playback sys-

tem that uses compression techniques to store

large amounts of audio data efficiently, much

like the JPEG format stores large photographs

in small files on a computer. Because it is

capable of performance beyond that of au-

dio CDs and can tailor its output for a wide

ranges of system configurations, Dolby Digi-

tal is the standard audio format for DVDs and

for digital television broadcasting in the United

States.

The Dolby Digital system can be used to record

up to six discrete audio channels, but can also

be used for fewer. For example, a Dolby Digital

2.0 soundtrack is a digital 2-channel record-

ing of a matrix encoded Dolby Surround

soundtrack.. To play a Dolby Digital 2.0 re-

cording, use Dolby Pro Logic II decoding as

previously described.

The most common use of Dolby Digital in newer

films, in both the film industry and in home

theater, is Dolby Digital 5.1. Instead of encoding

multiple surround channels on a two-channel

recording, Dolby Digital 5.1 records six dis-

crete channels: front left, front center, front right,

surround left, surround right, and a Low Fre-

quency Effects (LFE) channel containing ultra-

low bass signals intended for a subwoofer.

A Dolby Digital decoder extracts the channels

from the digital bitstream, converts them to

analog signals and routes them to the appro-

priate amplifiers and speakers. All channels

provide full frequency response with total sepa-

ration between all channels and large dynamic

range capability. A Dolby Digital 5.1

soundtrack can provide more impressive sur-

round sound than matrix Dolby Surround.

Decoding of Dolby Digital 5.1 soundtracks is

automatic. When the RSX-1056 detects a Dolby

5.1 signal on one of its digital inputs, it acti-

vates the proper processing. Keep in mind that

Dolby Digital is only available from digital

sources (a DVD, a LaserDisc, or a Digital TV/

Cable/SAT tuner). Also, you must connect the

source with a digital cable (coax or optical)

to an active digital input on the RSX-1056.

NOTE

: Many DVDs have a Dolby Digital 2.0

matrix soundtrack as the default, which should

be decoded with Pro Logic II. The Dolby Digi-

tal 5.1 soundtrack may have to be selected

as an option from the setup menus at the be-

ginning of the DVD. Look for a Dolby Digital

5.1 selection under “Audio” or “Languages”

or “Setup Options” when you insert the disc.

DTS

5.1

DTS 96/24

DTS

(Digital Theater Systems) is an alterna-

tive digital format competing with Dolby Digital

in both movie theaters and home theater

markets. The basic functions of the DTS sys-

tem are similar to those of Dolby Digital (for

example, 5.1 discrete channels), however the

technical details of the compression and de-

coding processes differ somewhat and a DTS

decoder is required.

A recent extension of the DTS encoding sys-

tem is DTS 96/24. These recordings provide

the performance of a 96kHz sampling rate

while still using actual 48kHz sampling rate

of standard DTS discs.

Like Dolby Digital, DTS can only be used on

a digital recording and, therefore, is only

available for home use on LaserDiscs, DVDs,

or other digital formats. To use the RSX-1056’s

DTS decoder, you must connect your DVD

player to the RSX-1056’s digital inputs.

As with Dolby Digital 5.1, detection and proper

decoding of DTS 5.1 signals is automatic.

NOTE

: DVDs with a DTS soundtrack almost

always have it configured as an option to the

standard matrix Dolby Surround format. To

use DTS, you may have to go to the setup

menus at the beginning of the DVD and se-

lect “DTS 5.1” instead of “Dolby Surround”

or “Dolby Digital 5.1”. In addition, many DVD

players have the DTS digital bitstream turned

off by default and cannot output a DTS

soundtrack (even if selected on the disc’s

menu) until you activate the player’s DTS out-

put. If you hear no sound the first time you

attempt to play a DTS disc, go to the DVD

player’s configuration menus and turn on the

DTS bitstream. This is a one-time setting and

need only be done once.

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Rotel RSX-1056 in the language / languages: English as an attachment in your email.

The manual is 2,04 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Rotel RSX-1056 Manual

Product: