Meridian 568 Manual

Meridian Hi-Fi system 568

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Meridian 568 Digital Surround Processor

u s e r g u i d e

Preface

Meridian 568 Digital

Surround Processor

User Guide

Preface

Sales and service in the UK

Meridian Audio Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Tel␣ ␣ (01480) 52144

Fax␣ ␣ (01480) 459934

World Wide Web

http://www.meridian-audio.com

Part no: 568

Sales and service in the USA

Meridian America Inc

3800 Camp Creek Parkway

Building 2400

Suite 122

Atlanta

GA 30331

Tel␣ ␣ (404) 344 7111

Fax␣ ␣ (404) 346 7111

Designed and

manufactured in the UK by

Digital Gramophone and Wireless Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Wireless Ltd.

Manufactured under license from Dolby

Laboratories Licensing Corporation (Canadian

patent 1,037,877), Lucasfilm Ltd. (US patents

5,043,970; 5,189,703; 5,222,059), Trifield

Productions Ltd, and Nimbus Records Ltd.

Dolby, Pro Logic, AC-3, and the double-D symbol

are trademarks of Dolby Laboratories Licensing

Corporation. Lucasfilm, THX, and THX Cinema are

registered trademarks of Lucasfilm Ltd. DTS is a

registered trademark of Digital Theatre Systems Inc.

MPEG is a registered trademark of the MPEG

organisation. Ambisonic is a registered trademark

of Nimbus Records Ltd. Trifield is a trademark of

Trifield Productions Ltd. LaserDisc is a trademark of

Pioneer Electric Corp. Boothroyd|Stuart Meridian,

Meridian, Meridian Digital Theatre, Meridian

Lossless Packing, and MLP are registered

trademarks of Meridian Audio Ltd.

MHR: This product incorporates copyright

protection technology covered by certain patent

applications and intellectual property of Meridian

Audio Ltd. This technology is provided for the

express purpose of securely containing copyright

audio within the Meridian System only. Reverse

engineering or circumvention of this protection is

strictly prohibited.

This guide was produced by Human-Computer

Interface Ltd, http://www.interface.co.uk

Preface

Configuring the digital

surround processor

using a computer 77

Describes how to configure the digital

surround processor using the Meridian

Configuration program.

The Meridian Configuration program ..... 78

Installing the Meridian Configuration

program ................................................. 79

Creating a new settings file .................... 82

Setting up speakers ............................... 85

Setting up sources ................................. 90

Configuring presets ............................... 93

Changing the setup options ................... 96

Calibrating the settings with your

system ................................................. 98

Creating a User Type .......................... 100

Completing the configuration ............. 103

Troubleshooting 105

Provides suggested solutions to typical

problems.

General operating problems ............... 106

Audio problems................................... 108

Video problems ................................... 111

Meridian Configuration program

problems ............................................. 112

Service and guarantee ........................ 113

Glossary 115

Index ................................................... 119

Preface

Introduction

Meridian High Resolution (MHR)

The 568 Digital Surround Processor supports Meridian High

Resolution (MHR), to allow you to connect to other MHR-

compliant Meridian products to take advantage of high-rate

audio sources, and provide the additional benefits of lower jitter

and improved sound quality on all sources.

MHR is a proprietary secure encoding format that uses

encryption and anti-copy methods to provide a secure copyright

protection environment, and allow the secure transfer of audio

streams within a Meridian-only system for playback only.

500 Series communications

The 568 Digital Surround Processor is part of the Meridian 500

Series of advanced digital, analogue, and video components,

and these incorporate a sophisticated communications link, to

allow you to control any combination of units using a single

remote, and ensure that they will work together as a fully

integrated system.

The communications system also allows you to extend your hi-fi

system into two or three rooms, with the ability to control the

sources in one room from the controller in another room.

The following pages show two recommended configurations

based on the 568 Digital Surround Processor to illustrate the

flexibility of the Meridian 500 Series.

Introduction

Specification

Digital inputs 4 x cable, 75 , IEC958 and dataΩ

compatible, up to 24 bits.

1 x optical, Toslink (EIAJ), IEC958 and

data compatible, up to 24 bits.

Analogue inputs 2 x unbalanced, 20kΩ input

impedance.

1 x stereo 24-bit Delta-Sigma ADC.

Processing 2 x Motorola 56002 running at 66MHz.

1 x Motorola 56303 running at 72MHz.

1 x Motorola 56007 running at 82MHz.

Internal precision maintained using 24-

and 48-bit arithmetic.

Analogue outputs 4 x stereo 24-bit Delta-Sigma DAC.

8 x unbalanced outputs for centre, sub,

rears, mains, and sides or subs.

3 x balanced outputs for mains and

centre.

Outputs variable between 0 and

3.5Vrms, output impedance 47Ω.

Distortion <0.01%.

Noise and hum <-95dB CCIR.

Digital outputs 4 x stereo SPDIF on cable, 75 , up toΩ

24-bit precision.

Video circuit 1 x composite video loop with

on-screen display: phono, 75Ω,

1.5V p-p, PAL/NTSC/SECAM.

1 x S-video loop with on-screen

display: Y/C on minidin, 75Ω,

1.5V p-p, PAL/NTSC/SECAM.

Tape outputs 1 x digital bypass.

Specification and accessories

Introduction

Fan kit

A Fan kit is available for the 568 to provide additional ventilation

if the unit is installed in an enclosed space.

The fan can be programmed using the Meridian Configuration

program so that it either runs when the 568 is out of standby, or

when the temperature rises above the recommended level.

Rack mount kit

The Meridian 500 Shelf is a tray produced by Middle Atlantic

Products which will allow the 568, or any other 500 Series unit,

to be fitted in a standard 19" rack. For more information please

contact Middle Atlantic Products, Inc., Riverdale, NJ 07457,

USA, (001) 973-839-1011, or their local distributor.

Introduction

TV Logic

TV Logic provides user-adjustable steering, and is

recommended for use with TV broadcasts that are not surround

encoded, where may give reduced intelligibility.Pro Logic

THX Cinema

THX Cinema enhances to replicate the sound of aPro Logic

dubbing stage or theatre, whether or not the other equipment in

your system is THX approved.

Ambisonic

Ambisonic decodes material specifically encoded for surround

sound reproduction, using a two-channel stereo-compatible

encoding. Recordings encoded in Ambisonic format are

available on CD from several sources including Nimbus Records

and York Ambisonic. Some radio broadcasts are also broadcast

in Ambisonic format.

Conventional stereo sources

The digital surround processor can also accept a conventional

two-channel source, such as music on compact disc or a video

soundtrack, and by analysing the information in the signal

separate the two-channel recording into multiple channels to

give better reproduction and a more stable spatial image.

Four alternative DSP presets are provided for reproducing

material originally designed for a conventional stereo pair of

speakers, and which preset you choose largely depends on your

own personal preferences.

All four presets use similar procedures to extract the surround

component of the original recording, which is delivered to the

rear surround speakers, and side surround speakers if present.

Music

Music uses a special technique developed by Meridian to divide

the sound between the left, right, and centre speakers and give

a wide, spacious sound. We recommend this option for large-

scale music, such as orchestral and choral music.

Introduction

Trifield

Trifield uses a different processing technique to give a stable,

three-dimensional image, with the ability to adjust the width of

the image. Because of its precision we recommend this option

for solo, chamber, or vocal music.

Super Stereo

Super Stereo provides a form of Ambisonic decoding suitable

for material that is not specially encoded. We recommend this

option for multi-miked or multi-tracked music, such as rock

music.

Music Logic

Music Logic provides user-adjustable steering to give an

exciting sound with many types of music. We recommend this

option for studio-produced music, ie material not produced

using natural soundfield recording.

Special DSP presets

The digital surround processor also includes the following

special DSP presets, for specific applications:

Mono

The Mono preset is designed for reproducing mono materials

through a centre speaker, so that any high-frequency hiss or

clicks are centrally localised. It is intended for mono recordings,

and multi-language LaserDiscs and video soundtracks.

The Mono preset includes an option, designed toAcademy

correct for a high-frequency balance in some old black and

white films, and a option, which plays the mono signalParty

through all loudspeakers.

Stereo and Direct

Stereo Directand are provided for comparison with the other

DSP presets. uses just the main left and right speakersDirect

for traditional two-speaker stereo reproduction. , inStereo

addition, uses any subwoofers in the layout to enhance the bass

or to protect small speakers.

Using the digital surround processor

Using the digital

surround processor

This chapter provides a summary of the functions of the digital surround

processor to identify the controls which you use to operate the unit.

It also provides step-by-step instructions for operating the digital surround

processor, using either the front panel or the Meridian System Remote.

Using the digital surround processor

Front panel

1 Source

Selects the source.

2 Store

Changes the DSP preset

assigned to a source.

3 Preset

Changes the preset.

4 Mute

5 Display

Changes the information

displayed on the front panel.

6V Decrease

Decreases the volume.

7A Increase

Increases the volume.

8 Off

Switches to standby.

StoreSource VPreset Mute OffA

Digital 65

BOOT HROYD STUART

568

Digital Surround Processor

Display

2345678

Display

Using the digital surround processor

1 Source keys

Select a source.

2 Control keys

Control the source functions.

3 Off

Switches to standby.

4 Function

Acesses additional functions.

5 Number keys

For entering track numbers

and radio presets.

6 Title/Chapter

For controlling a DVD Player.

7 Menu keys

For customising the 568.

8 Preset

Changes the DSP preset.

9 Display

Changes the front-panel

display.

10 Volume keys/Mute

Change the volume.

Meridian System Remote

Subtitle

Off

EnterReturn

Function 0 Title

Chapter

Record

Slow

OSD

Angle Audio A-B Phase

Setup

Band

789

456

123

Menu Volume

Display MutePreset

Clear

Store

Repeat

CD RADIO LP TV TAPE 1 TAPE 2 CDR CABLE DVD VCR 1 VCR 2 LD

1 2 3

5 6 7 8 9 10

Produkt Specifikationer

Mærke:	Meridian
Kategori:	Hi-Fi system
Model:	568

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