Meridian 568 User Manual

Meridian 568 Digital Surround Processor

user guide

i

Preface

Meridian 568 Digital
Surround Processor
User Guide

Preface

ii

Sales and service in the UK

Meridian Audio Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Tel␣ ␣ (01480) 52144

Fax␣ ␣ [phone]

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␣ ␣ [phone]

Fax␣ ␣ [phone]

Designed and

manufactured in the UK by

Digital Gramophone and Wireless Ltd

Stonehill

Stukeley Meadows

Cambs

PE18 6ED

England

Copyright © 1995–1999 Digital Gramophone and
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

iii

Preface

Contents

Introduction 1

Introduces the digital surround processor,
and gives guidelines and suggested
layouts to help you plan your surround
system.

The 568 Digital Surround Processor ...... 2

Sample configurations ........................... 4

Specification and accessories ............... 6

DSP presets ........................................... 9

Using the digital
surround processor 13

Provides step-by-step instructions for
operating the digital surround processor,
using either the front panel or the Meridian
System Remote.

Front panel ............................................. 14

Meridian System Remote ...................... 15

Quick guide to operating the 568

with the remote ...................................... 16

Selecting a source ................................. 17

Adjusting the volume ............................. 19

Changing the DSP preset ...................... 20

Changing the display ............................. 21

Defining your own
presets 23

Describes how to change the built-in DSP
presets, and create your own presets.

Locking and unlocking the menus ......... 24

Changing the DSP parameters .............. 25

Standard parameters ............................. 26

Changing treble, bass, or phase ............ 27

Changing the listening position ............. 28

Changing the integration of the centre .. 30
Changing the spaciousness of the

sound ..................................................... 31

Changing the lip sync and on-screen

display .................................................... 32

Changing the DSP preset for a source .. 33

Preface

iv

Configuring the digital
surround processor
without a computer 63

Describes how to perform a basic
configuration of the digital surround
processor without requiring a computer.

Choosing a standard setting.................. 64

Standard source settings ....................... 66

Calibrating the system ........................... 67

Calibration tests ..................................... 70

Setting up subwoofers ........................... 74

Setting up the digital
surround processor 49

Describes how to unpack and install the
digital surround processor, and gives
details of the video and audio
connections.

Unpacking .............................................. 50

Positioning the digital surround

processor ............................................... 51

Connecting the digital surround

processor ............................................... 52

Connecting video ................................... 55

Connecting speakers ............................. 56

Connecting sources ............................... 59

Connecting to other Meridian

equipment .............................................. 62

DSP presets 37

Gives technical information about each of
the DSP presets, with details of the special
parameters available for each one.

Logic DSP presets ................................. 38

Music DSP presets ................................ 41

5.1 Movie DSP presets .......................... 46

v

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

vi

Introduction

1

Introduction

The Meridian 568 Digital Surround Processor combines a completely digital

surround-sound processor with a high-performance digital preamplifier in a

single integrated unit. It takes advantage of the latest techniques in high-

precision analogue electronics and digital signal processing, and the result

is an impressively realistic and exciting reproduction of music and cinema

sound.

The 568 Digital Surround Processor accepts both analogue and digital

sources, and supports all the current two-channel and multi-channel audio

formats including PCM, Dolby Digital (AC-3), DTS, and MPEG. It also

includes several proprietary processing modes, including the MLP

(Meridian Lossless Packing) format.

For instructions on setting up the unit turn to Setting up the digital

surround processor, page 49. Once the digital surround processor has

been set up refer to Using the digital surround processor, page 13, for

information about getting the best results from all your music and film

recordings.

2

Introduction

The 568 Digital Surround Processor incorporates the result of
several years of research and development into several
innovative technologies.

Digital Signal Processing

Digital Signal Processing, or DSP, is a technique pioneered by
Meridian in hi-fi products for achieving extremely accurate
reproduction of audio signals using high-precision mathematical
processing.

DSP allows sophisticated processing to be performed without
any of the cumulative noise or degradation that inevitably
occurs, even with high-quality analogue circuitry. In addition,
several of the surround-sound decoding techniques and signal
improvement techniques available in the 568 would be virtually
impossible to implement in analogue circuitry.

The 568 takes advantage of DSP for several different functions:

❍To remove timing variations from the incoming digital signals

(de-jittering).

❍To expand the precision of the signal to use the full available

range.

❍To resample the signal to take advantage of the highest rate

available (upsampling).

❍To perform filtering or adjustment of the frequency response;

eg treble or bass.

❍To decode digitally-encoded signals from Dolby Digital (AC-3),

DTS, or MPEG Audio.

❍To process the audio into a multi-channel signal, and match

the source channels to the configuration of main loudspeakers
and subwoofers in the system.

The 568 converts analogue input signals to digital format, using
high-quality analogue-to-digital converters (ADCs). Digital
signals, from CD, DVD, LaserDisc or digital broadcasting, are
already in digital format and do not need to be converted.

The signals are then retained in digital form throughout the 568
until they are converted back to analogue form at the analogue
outputs, to drive power amplifiers. If you are using the 568 with
Meridian DSP Loudspeakers, the signals remain in digital form
until the last possible stage.

The 568 Digital Surround Processor

Introduction

3

Meridian High Resolution (MHR)

The 568 Digital Surround Processor supports Meridian High
Resolution (MHR), to allow you to connect to other MHR­compliant 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.

4

Introduction

Meridian Compact Theatre™

The Meridian 568 Digital Surround Processor is ideal for use with
the M33 Active Analogue Loudspeaker and M1500 Active
Subwoofer. The M33 provides an unusually good response for
such a compact case, and can be mounted either horizontally or
vertically for total flexibility.

The 568 Digital Surround Processor can connect directly to up
to eight Meridian active loudspeakers, allowing you to create a

5.1 or 7.1 analogue theatre ideal for superb music and cinema
sound in the home.

Sample configurations

Meridian DVD Player

M33

568

M33M33

M1500

M33 rear M33 rear

Introduction

5

Meridian DVD Player

DSP5000C

504

D33 sideD33 side

568

D33 rear D33 rear

DSP6000 DSP6000

Meridian Digital Theatre™

The 568 Digital Surround Processor can be used with two
Meridian DSP6000 Digital Loudspeakers, and a DSP5000C
Digital Centre Loudspeaker, to provide audiophile-quality sound.
A further two or four D33 Active Digital Loudspeakers can be
added as side or rear loudspeakers to give extremely convincing

multi-channel reproduction from music and film sources. The
Meridian DVD Player is an ideal source for use with the 568. It
allows you to play both audio CDs and DVD video discs, taking
full advantage of the 568’s control and digital signal processing
capabilities.

6

Introduction

Specification

Digital inputs 4 x cable, 75Ω, IEC958 and data

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 24­and 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, 75Ω, up to

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

7

Control 2 x Meridian Comms.

9-pin D connector for RS232 PC setup
and control.

Dimensions 321mm x 88mm x 332mm

(12.7" x 3.5" x 13.1") (W x H x D).

Weight 5kg (10lb).

Meridian Audio reserves the right to amend product
specifications at any time.

Available accessories

The following accessories are available from your dealer.

Meridian 511 S-patch Box

The Meridian 511 S-patch box provides a convenient way to
interconnect the S leads between up to eight Meridian DSP
digital loudspeakers. It is required if your 568 system includes
more than two DSP loudspeakers.

Meridian 519 Demodulator

To take advantage of Dolby Digital on LaserDisc you need the
Meridian 519 Demodulator, which converts the LaserDisc
RF output to a bitstream which can be fed to the 568. The
519 Demodulator automatically senses the presence of a Dolby
Digital signal, and can select the LaserDisc PCM or DTS digital
audio output when no Dolby Digital signal is available.

8

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, [phone]-1011, or their local distributor.

Introduction

9

The digital surround processor provides an extremely
comprehensive range of digital signal processing options for
decoding both analogue and digital audio signals and
processing them for multi-channel reproduction. These are
referred to as DSP presets, and are designed to provide the best
results with a range of different types of music and film material.

In addition to selecting built-in DSP presets, the digital surround
processor allows you to create your own presets based on the
standard ones. For example, you may want to add more delay to
the rear speakers to create a more spacious sound. You can
store your modified preset with a name of your choice, and
recall it for use at a later date.

This section gives information about each of the built-in DSP
presets, and gives recommendations for the best preset to
choose for different types of material.

Multi-channel digital sources

Several alternative multi-channel digital formats are currently
available which encode up to eight different channels onto a
digital signal. Four alternatives are currently in use: Dolby Digital,
DTS, MPEG Surround, and MLP. However, the 568 has been
designed so that it can be upgraded by downloading a software
update, to cater for new formats as they are introduced.

Dolby Digital

Dolby Digital, previously called AC-3, is the preferred sound
format for DVD video, and is widely used on LaserDisc
soundtracks. It is also the audio standard for US digital
television.

DTS

DTS uses an audio compression technique to encode five
channels of audio onto a digital signal. The DTS format is used
to encode multi-channel film soundtracks on LaserDiscs and
DVD video discs.

DSP presets

10

Introduction

In addition, a high data-rate version of DTS can be used to
compress five channels of CD-quality audio into the same space
as two channels of unencoded sound, allowing a DTS music CD
to provide over an hour of five-channel music, at a quality
indistinguishable from conventional CD.

MPEG Surround

MPEG Surround is the preferred audio format for DVD in PAL
territories, and along with Dolby Digital is a contender as the
standard for music and performance videos on DVD worldwide.

THX

THX versions of Dolby Digital, MPEG Surround, and DTS are
provided to give a better match between the original soundtrack
and typical domestic listening conditions.

MLP

MLP (Meridian Lossless Packing) is an audio format that allows
multiple audio channels, of up to 192kHz 24-bit quality, to be
stored on a DVD without losing any information. It can also be
used to store four-channel audio on a standard CD without any
loss of quality.

Multi-channel sources encoded onto
two channels

Several systems have been developed for encoding multi­channel sources onto a standard two-channel analogue signal
so that they can be reproduced by a conventional stereo
system, or decoded with special equipment for multi-channel
reproduction. The 568 Digital Surround Processor provides
decoding of the two most important of these, Ambisonic and
Dolby Surround. Although the channel separation cannot be as
good as with the digital multi-channel formats, the 568 produces
excellent results with these formats.

Pro Logic

The Pro Logic preset is recommended for decoding Dolby
Surround encoded video and LaserDisc soundtracks, and films
on television. Such materials are usually identified by a Dolby
Surround symbol on the packaging, or displayed on the film
before the programme.

Introduction

11

TV Logic

TV Logic provides user-adjustable steering, and is
recommended for use with TV broadcasts that are not surround
encoded, where Pro Logic may give reduced intelligibility.

THX Cinema

THX Cinema enhances Pro Logic to replicate the sound of a
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 large­scale music, such as orchestral and choral music.

12

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 Academy option, designed to
correct for a high-frequency balance in some old black and
white films, and a Party option, which plays the mono signal
through all loudspeakers.

Stereo and Direct

Stereo and Direct are provided for comparison with the other
DSP presets. Direct uses just the main left and right speakers
for traditional two-speaker stereo reproduction. Stereo, in
addition, uses any subwoofers in the layout to enhance the bass
or to protect small speakers.

Using the digital surround processor

13

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

14

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.

6 V Decrease

Decreases the volume.

7 A Increase

Increases the volume.

8 Off

Switches to standby.

StoreSource VPreset Mute A Off

Digital 65

BOOTHROYD STUART

568

Digital Surround Processor

Display

2345678

Display

1

Using the digital surround processor

15

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

T

Angle Audio A-B Phase

Setup

Band

789

456

123

Menu Volume

Display

Mute

Preset

Clear

Store

Repeat

CD RADIO LP TV TAPE 1 TAPE 2 CDR CABLE

DVD

VCR 1 VCR 2 LD

4

123

5 6 7 8 9 10

Using the digital surround processor

16

Quick guide to operating the 568 with the remote

Action 568 as controller DSP speaker as controller

Source selection CD, RADIO etc. CD, RADIO etc.

Go to standby Off Off

Volume Volume A V Volume A V

Mute Mute Mute

Change display Display Not available

Change DSP preset Preset Preset

Move to next or previous menu Menu < > Function + Menu < >

Change the value of this menu Menu A V Function + Menu A V

Store settings as a new DSP preset Store Function + Store
or over an existing one

Associate the current DSP preset Function + Store Function + Mute
with the current source

Delete an unwanted user preset Clear (held down) Function + Clear (held down)

Using the digital surround processor

17

When not playing, the digital surround processor should be left
in the standby state. This uses a negligible amount of electricity,
but ensures that the components of the digital surround
processor operate at maximum efficiency from the moment you
start.

If you are not going to use the digital surround processor for
several days you should switch the unit completely off at the
back panel, and disconnect it from the AC power supply.

To switch on from standby

● Press Source (front panel), or select a source by pressing the

appropriate source key on the remote; eg DVD.

If the digital surround processor is part of a Meridian system it
will automatically switch on any other unit in the system, such as
the CD player and Meridian DSP loudspeakers.

To select a source

● Press Source (front panel) until the display shows the source

you require.

For example:

DVD

Alternatively press the appropriate source key on the remote;
eg DVD.

After a short delay the display shows the currently selected DSP
preset and volume setting.

For example:

Digital 56

The digital surround processor mutes the sound while you
change source.

By default the following 12 sources are available: CD, Radio, LP,
TV, Tape 1, Tape 2, CDR, Cable, DVD, VCR1, VCR2, and LDisc.

The audio input and DSP preset associated with each source
can be configured using the Meridian Configuration program; for
more information refer to Configuring the digital surround
processor using a computer, page 77.

Selecting a source

Using the digital surround processor

18

To switch to standby

● Press Off on the front panel or the remote.

The display will show:

.

If you have other Meridian 500 Series equipment or Meridian
DSP loudspeakers connected to the digital surround processor
these units will also switch to standby.

Using the digital surround processor

19

To mute the sound

● Press Mute.

The display will show:

Mute

To restore the sound

● Press Mute again.

Alternatively, the sound will be restored if you adjust the volume.

The digital surround processor adjusts the volume in precise
steps of 1dB, where 9dB is equivalent to doubling the loudness.
The current volume setting is displayed in dB on the front panel
display, and can be varied in the range 1 to 99dB.

When you first connect power to the digital surround processor
the volume is set to 65, which is similar to the midway position
of the rotary volume control on a conventional preamplifier.

A setting of 87 corresponds to THX reference gain, the level at
which film soundtracks are mixed. For normal to high-level
listening you should expect to use volume levels in the range 60
to 90.

To change the volume

● Press A or V (front panel), or the red A or V keys on the

remote.

As you adjust the volume setting the display will show the
current volume level.

For example:

Music 70

Adjusting the volume

Using the digital surround processor

20

Each source has a set of DSP presets associated with it, one for
each of the alternative audio formats: two-channel (PCM), Dolby
Digital, DTS, MPEG, and MLP.

When you choose a source an appropriate DSP preset is
selected for the incoming audio format.

For example, if you have selected the CD source and are playing
a conventional CD, the Trifield DSP preset will initially be
selected. You may then wish to choose a different DSP preset,
such as Music or Ambisonic.

You can also change the default DSP preset associated with the
source; see Changing the DSP preset for a source, page 33.

To change the DSP preset

● Press Preset (front panel or remote) to step between the

different DSP presets.

The display shows the current preset;
for example:

Music

You will be able to choose any of the predefined DSP presets, or
any user-defined presets you have stored.

Changing the DSP preset

The following table gives the sequence of DSP presets for each
audio format, followed where appropriate by the abbreviated
name used on the display:

Audio format Presets

Two-channel (PCM) Direct, Music, Trifield, Ambisonic

(Ambsonic), Super Stereo (Super),
Stereo, Music Logic (MuLogic),
Pro Logic (ProLogic), THX Cinema
(THX), Mono, TV␣ Logic

Dolby Digital Dolby Digital (Digital),

Dolby Digital THX (Dig THX)

DTS DTS, DTS THX, DTS Music (DTS Mus)

MPEG MPEG, MPEG THX,

MPEG Music (MPEG Mus)

MLP MLP

In each case these will be followed by any user-defined presets
you have stored for the appropriate audio format.

Using the digital surround processor

21

Changing the display

The digital surround processor displays information about the
current settings on the 12-character front panel display. In
addition, it can display the same information superimposed on a
video image. For more information about setting up the
on-screen display refer to Connecting video, page 55.

To change the display

● Press Display.

Each time you press Display the display will step between the
options shown in the table opposite.

In addition, the following symbols on the front panel display
indicate which of the DSP processing modes are operating:

Symbol What it means

THX processing is operating.

Dolby processing is operating.

Input is DTS.

MPEG Input is MPEG.

Display option Example

DSP preset and volume

Music 65

DSP preset and THX gain

Music -22

Source and volume

Radio 65

Audio stream

AC3 5.1 44k

Blank



The audio stream display option shows the following three
pieces of information about the audio stream:

AC3 5.1 44k

Sample rate:
96k 96kHz
88k 88kHz
48k 48kHz
44k 44kHz
NL Not locked

Format:
PCM 2-channel PCM
AC3 Dolby Digital
DTS DTS encoding
MPG MPEG encoding
MLP MLP encoding

Input channels:
Main.LFE

Using the digital surround processor

22

Defining your own presets

23

Defining your own
presets

In addition to being able to change the source, volume, and DSP preset,

the digital surround processor provides a sophisticated range of more

advanced adjustments for each DSP preset, to allow you to change the

characteristics of the sound to the settings you want.

This chapter explains how to change these advanced parameters, and

how to store them permanently so they are available whenever you want

to use them.

For information about the parameters specific to individual presets see

DSP presets, page 37.