Trinnov Audio Magnitude 32 Manuel utilisateur

Last Update: 25 March 2014

Contents

1INTRODUCTION ..................................................................................................... 9

1.1

THE OPTIMIZER IN A NUTSHELL ........................................................................................................ 10

Level and Time Alignment..............................................................................................................................................................................10

Automatic Optimization..................................................................................................................................................................................10

Intelligent Active Crossovers .........................................................................................................................................................................11

Bass Management...........................................................................................................................................................................................11

Loudspeaker Positions Remapping .............................................................................................................................................................11

1.2

ADDITIONNAL FEATURES OF THE MAGNITUDE32 ................................................................................. 11

Manual Equalization ........................................................................................................................................................................................11

2GETTING STARTED............................................................................................... 12

2.1

POWER ON AND SHUTDOWN............................................................................................................. 12

Power on............................................................................................................................................................................................................12

Shutdown...........................................................................................................................................................................................................12

2.2

REMOTE ACCESS TO THE GRAPHICAL USER INTERFACE ........................................................................ 13

About the VNC protocol ..................................................................................................................................................................................13

Network configurations ..................................................................................................................................................................................13

Using the magnitude32 as a DHCP client ...................................................................................................................................................14

Using the magnitude32 as a WiFi Access Point ........................................................................................................................................15

Using a VNC Client through the local network ...........................................................................................................................................16

Using the magnitude32 as a WiFi client to join an existing network .....................................................................................................19

Using an external display, mouse and keyboard .......................................................................................................................................21

2.3

CONNECTIONS ............................................................................................................................... 22

Magnitude32.....................................................................................................................................................................................................22

DB25 connectivity ............................................................................................................................................................................................24

Connection example........................................................................................................................................................................................25

3BASIC OPERATIONS .............................................................................................. 26

3.1

INPUT SELECTION........................................................................................................................... 26

3.2

VOLUME CONTROL ......................................................................................................................... 27

3.3

PRESET MANAGEMENT .................................................................................................................... 27

Built-in Preset ...................................................................................................................................................................................................27

Presets 1-29......................................................................................................................................................................................................28

Preset Info .........................................................................................................................................................................................................29

Backup/Restore Presets.................................................................................................................................................................................30

3.4

INPUT CONFIGURATION ................................................................................................................... 32

4SETTING UP THE SYSTEM....................................................................................... 35

4.1

SOURCES SETTINGS /ROUTING ........................................................................................................ 35

Sources Settings ..............................................................................................................................................................................................35

Sources Routing...............................................................................................................................................................................................39

4.2

SPEAKER SETTINGS /ROUTING ........................................................................................................ 40

Speaker Settings ..............................................................................................................................................................................................40

Speakers Routing.............................................................................................................................................................................................41

4.3

CLOCK SETTINGS ........................................................................................................................... 42

4.4

AUDIO UTILITIES ............................................................................................................................ 43

Meters43

Test Signals.......................................................................................................................................................................................................44

Solo/Mutes........................................................................................................................................................................................................45

5CALIBRATION...................................................................................................... 46

5.1

FUNDAMENTAL CONCEPTS ............................................................................................................... 46

Procedure ..........................................................................................................................................................................................................46

Signal flow of the magnitude32 ....................................................................................................................................................................47

Procedural order & relation between filters.................................................................................................................................................48

5.2

3D MEASUREMENT MICROPHONE..................................................................................................... 49

Microphone specifications.............................................................................................................................................................................49

Power supply ....................................................................................................................................................................................................49

Individual compensation file..........................................................................................................................................................................50

Connection Order .............................................................................................................................................................................................51

5.3

MICROPHONE REFERENCE POSITION ................................................................................................. 52

Measurement environment requirements ..................................................................................................................................................52

Reference measurement point......................................................................................................................................................................52

Position and orientation of the microphone for the reference point......................................................................................................53

5.4

ACTIVE XOVERS CALIBRATION .......................................................................................................... 54

Functionality......................................................................................................................................................................................................55

5.5

CALIBRATION................................................................................................................................. 61

Useful tips..........................................................................................................................................................................................................61

Level Adjustment:.............................................................................................................................................................................................62

Calibration procedure......................................................................................................................................................................................62

5.6

COMPUTE...................................................................................................................................... 67

5.7

MULTI-POINT MEASUREMENT.......................................................................................................... 68

Multi-point measurement positions.............................................................................................................................................................69

Multi-measurement calibration ....................................................................................................................................................................71

Multi-measurement weighting......................................................................................................................................................................72

6OPTIMIZER GUIDE ................................................................................................ 73

6.1

OPTIMIZER GRAPHS........................................................................................................................ 73

About the Optimizer Graphs...........................................................................................................................................................................74

Overview ............................................................................................................................................................................................................74

Graphs Settings................................................................................................................................................................................................75

6.2

RUNTIME /BYPASS ........................................................................................................................ 76

Bypass................................................................................................................................................................................................................76

Optimizer Runtime...........................................................................................................................................................................................76

6.3

MAIN SETTINGS ............................................................................................................................. 77

Optimization Modes ........................................................................................................................................................................................77

Maximum Boost/Attenuation ........................................................................................................................................................................78

Acoustic Parameters.......................................................................................................................................................................................78

Target curves....................................................................................................................................................................................................79

Limiter Curve.....................................................................................................................................................................................................80

6.4

ADVANCED SETTINGS ...................................................................................................................... 81

Display................................................................................................................................................................................................................81

Front & Surround Speaker settings ..............................................................................................................................................................81

Acoustics Correction .......................................................................................................................................................................................82

Calibration settings..........................................................................................................................................................................................82

Optimize according to L&R speakers settings ...........................................................................................................................................82

FIR and IIR settings .........................................................................................................................................................................................83

Level alignment settings:................................................................................................................................................................................83

Advanced Energy Response smoothing settings......................................................................................................................................83

Subwoofer low-pass filter settings...............................................................................................................................................................84

Decimation settings & Advanced FIR settings ...........................................................................................................................................84

Advanced FIR settings: ...................................................................................................................................................................................84

6.5

2D/3D LOUDSPEAKER POSITION REMAPPING ..................................................................................... 85

About the remapping.......................................................................................................................................................................................85

Remapping modes...........................................................................................................................................................................................86

Use cases ..........................................................................................................................................................................................................87

6.6

BASS MANAGEMENT....................................................................................................................... 88

7MANUAL ADJUSTMENTS ........................................................................................ 90

7.1

LEVELS AND DELAYS ADJUSTMENTS.................................................................................................. 90

Reducing Latency ............................................................................................................................................................................................91

7.2

CHANNEL-SPECIFIC LEVELS AND DELAYS........................................................................................... 92

7.3

FIR EQ ......................................................................................................................................... 94

7.4

31 BAND GRAPHIC EQS ................................................................................................................... 95

7.5

SUBMIXES..................................................................................................................................... 97

8NETWORK OPERATIONS......................................................................................... 98

Remote Control / Automation .......................................................................................................................................................................98

Software Updates & Remote Support..........................................................................................................................................................99

9KNOWN ISSUES AND TROUBLESHOOTING ..................................................................100

9.1

KNOWN ISSUES............................................................................................................................ 100

Clicks and Sync losses..................................................................................................................................................................................100

9.2

TROUBLESHOOTING ...................................................................................................................... 101

Calibration .......................................................................................................................................................................................................101

Network Connection for Software Updates & Remote Support............................................................................................................102

10 USEFUL TIPS...............................................................................................103

10.1

..........................................................................................................................................

AVOIDING FEEDBACK LOOPS 103

10.2

.....................................................................................................

POSITIONING AND ORIENTATING THE MICROPHONE103

10.3

.......................................................................................................................................................

REDUCING LATENCY 104

11 APPENDIX ..................................................................................................105

11.1

....................................................................................................................................

ARBORESCENCE OF THE MENUS 105

11.2

..........................................................................................................................

SIGNAL FLOW OF THE MAGNITUDE32 106

11.3

..............................................................................................................................................

ABOUT YOUR PROCESSOR 107

11.4

........................................................................................................................................................

STARTUP OPTIONS 108

11.5

.....................................................................................................................................

AUDIO INTERFACES &CHASSIS 109

Audio interfaces..............................................................................................................................................................................................110

Technical specifications ...............................................................................................................................................................................110

11.6

............................................................................................................................................................

MISCELLANEOUS 111

Delay Lines ......................................................................................................................................................................................................111

Config Editor....................................................................................................................................................................................................112

System Status ................................................................................................................................................................................................113

1INTRODUCTION

Thank you for choosing a magnitude32.

As a company, our goal is to offer a range of products that meet the requirements of the most demanding

audio professionals and High-End enthousiasts.

The magnitude32 has been designed to achieve multichannel audio reproduction at the highest level of

performance with speaker configurations ranging from 5.1 up to the most complex 3D audio systems.

The magnitude32 can integrate any existing home cinema audio system but it may also be considered in

the early stages of a home cinema design, as a fully dedicated loudspeaker/room optimization system.

The magnitude32 features the company’s world-acclaimed Optimizer technology and Trinnov’s unique

3D loudspeaker remapping.

1.1 THE OPTIMIZER IN A NUTSHELL

The magnitude32 features Trinnov’s Loudspeaker/Room integrated correction technology and can deliver from 8 up to 32 simultaneous

channels of optimized sound to your home cinema.

Based on acoustic meaurements performed in a single or multiple position across the room, the system provides different types of

compensation and information at once:

Level and Time Alignment

The Optimizer considers a user-defined reference measurement position to automatically align the relative levels of each loudspeaker, and

applies delays to time-align the system.

This can be disabled in the Optimizer Settings/Runtime page, and may be configured separately for the front and surround loudspeakers in the

Optimizer Settings/Settings/Advanced Settings page.

The Optimizer also measures the absolute playback level.

Automatic Optimization

The Optimizer uses state-of-the art time-frequency algorithms to analyze acoustic measurements and uses specific methods to compensate for

direct sound, first reflections, late reflections/reverberation and room modes. All the subtlety of the Optimizer resides in knowing which defects

may be corrected without creating additional problems.

•Improved Phase Response: the Optimizer corrects the frequency response of the speakers, both in amplitude and phase. This means that

the Optimizer corrects both the tonal balance to obtain a neutral timbre for every speaker and it also works in the time domain to achieve

a high resolution stereophonic image with well-focused phantom sources.

•Target Curves: the Optimizer automatically defines the filters that will achieve the required frequency response defined by a target curve.

This is particularly useful to comply with industry standards such as the X-Curve SMPTE and ISO standards. Phase and Group Delay

targets may also be defined, making the Optimizer a unique tool for sound system designers.

•Fine-tuning options: the Optimizer provides over 12 different parameters, such as maximum boost/cut, to customize the behaviour of the

room correction algorithms. This opens many possibilities to fine-tune the sound according to loudspeaker capabilities and listening

tests.

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