Manuals / Meridian Audio / Home Audio / Home Theater System

Meridian Audio G61 manual Calibrating the system, Introduction, Using a Sound Pressure Level meter

Models: G61

1 59

Download 59 pages 26.08 Kb

Page 30

Calibrating the system

2 5

C a l i b r a t i n g t h e s y s t e m

Calibrating the system

To help you to set up the installation to give the best possible sound with any particular

combination of associated equipment, the G61 Digital Surround Controller includes a built-in

calibration procedure.

This calibration procedure uses test signals to present a series of sounds, which you use to

adjust certain aspects of the system to their optimum settings.

You should use the calibration procedure the first time you set up the system, and whenever

you want to check the calibration, such as after changing the layout of the room.

Introduction

We recommend that you perform the calibration procedure using the MSR+ and from the listening position.

As you run the calibration procedure the name of each calibration test is shown on the front-panel display, followed by the parameters adjusted in the test.

Each calibration test uses a test signal designed to give the best results.

Using a Sound Pressure Level meter

Although you can perform the calibration procedure by ear, it is recommended that you perform the tests using a Sound Pressure Level meter. These are available fairly cheaply from Tandy/Radio Shack, or your Meridian dealer may be able to lend you one.

Set the Sound Pressure Level meter to C weighted, and Slow. Take readings with the meter at the listening position, pointing vertically. You should hold the meter with an outstretched arm to minimise reflections from your body.

You can choose to display and enter distances in either feet and inches or metres.

Image 30

Meridian Audio G61 manual Calibrating the system, Introduction, Using a Sound Pressure Level meter

Contents

M E R I D I A N G S E R I E S I N S T A L L A T I O N G U I D EInstallation Guide G61 Digital Surround ControllerTo avoid interference Safety warningsTo avoid overheating Radio interferenceContents Sales and service in the USA Copyright and acknowledgementsSales and service in the UK i P r e f a c eIntroduction Inputs1 I n t r o d u c t i o n 2 I n t r o d u c t i o n Specifications 3 I n t r o d u c t i o n4 I n t r o d u c t i o n Installing the digital surround controller UnpackingAudio inputs 6 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r BIT #$ 0LAYER 7 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r 46 TUNER8 I n s t a l l i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r3!#$$6$ ! PLAYER Audio outputs 9 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r $30# 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r 3 PATCH BOX1 I n s t a l l i n g t h e d i g i t a l s u r r o u n d c o n t r o l l e r$IGITALI3URROUND #ONTROLLER 3UBWOOFER $IGITALI3URROUND #ONTROLLER 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r Use RZ and LZ if you have two subwoofersCommunications connections 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r Auto Switch all the units to standbyNot Con 1 I n s t a l l i n g t h eConfiguring the digital surround controller Configuration WizardReset all settings? Stage 1 Resetting the product1 Reset settings TypeSpeakers TypesType Music SubEither Stage 2 Configuring speakers2 Select speakers EitherValues Speaker optionsOption DescriptionRadio Stage 3 Configuring sources3 Configure sources in useSource options used as necessary Stage 4 Configuring other settings4 Other settings EitherSettings Page Using a Sound Pressure Level meter Calibrating the systemIntroduction 2 C a l i b r a t i n g t h e s y s t e m Left Level +0.0dBWizard complete EitherDistance Calibration testsLevels Left Level +0.0dBLeft Distance Fine tuningPhase LeftLeft Size Speaker sizeSizes set to zero C a l i b r a t i n g t h e s y s t e mSubwoofer crossover frequency Using the Sine/Sub/Sens controlsSinewave sweep test CD Xover 85Hz81.5Hz CD Sine 80.0Hz88.5Hz PauseTV 2.0V Clip Setting up sources1.4V Peak DVD Not AnalogueDSP presets DSP presets3 D S P p r e s e t s 3 D S P p r e s e t s Standard parametersDefault Parameter3 D S P p r e s e t s DSP presets for two-channelmaterialMusic and Trifield DSP preset parameters MusicAmbisonics Ambisonics and Super DSP preset parameters3 D S P p r e s e t s Super3 D S P p r e s e t s MusicLogicStereo and Direct PLIIx Movie and PLIIx THX DSP preset parameters3 D S P p r e s e t s PLIIx Movie and PLIIx THX3 D S P p r e s e t s TV LogicDSP presets for multichannel material 4 D S P p r e s e t sTHX DSP preset parameters 4 D S P p r e s e t sUsing dynamic range control 4 D S P p r e s e t sAmbisonics Defining your own presets To save the preset settings4 D S P p r e s e t s To clear a user-definedpreset Stored4 D S P p r e s e t s Troubleshooting General operating problems4 Tr o u b l e s h o o t i n g Remote not working Audio problems4 Tr o u b l e s h o o t i n g Unit is overheating4 Tr o u b l e s h o o t i n g Audible hiss at high volume settingsConfiguration Program Guide Sound not clear4 Tr o u b l e s h o o t i n g sourceMaintenance Cleaning4 Tr o u b l e s h o o t i n g Guarantee Service and guaranteeService 5 Tr o u b l e s h o o t i n gIndex I n d e5 I n d e 5 I n d e 5 I n d e