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Meridian Audio G68 manual D S P p r e s e t s, Ambisonics, Using dynamic range control

Models: G68 G68

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D S P p r e s e t s

Ambisonics

The Ambisonics preset allows you to decode multi-channel sources which have been encoded in Ambisonics B format.

Ambisonics B format contains four independent channels of information to give a three-axis representation of the sound at the recording position. The signals are: mono sound pressure, left-right velocity component, front-back velocity component, and up-down velocity component.

Using dynamic range control

If the input format is Dolby Digital, the 5.1 Movie DSP presets provide an additional Compress parameter to allow you to take advantage of the dynamic range information provided in the Dolby Digital format to provide dynamic range control without the distortion involved in analogue methods.

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Meridian America G68 manual D S P p r e s e t s, Ambisonics, Using dynamic range control

Contents

Installation Guide G68 Digital Surround ControllerSafety warnings To avoid overheatingTo avoid interference Radio interferenceContents Copyright and acknowledgements Sales and service in the UKSales and service in the USA i P r e f a c eIntroduction Digital surround controller modelsG68 Digital Surround Controller Video switchingSmart Source feature 2 I n t r o d u c t i o n3 I n t r o d u c t i o n Meridian Room CorrectionMulti-zonecapabilities Integral tunerSpecifications PowerDimensions WeightInstalling the digital surround controller UnpackingAudio inputs Use this connector6 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 r7 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 rTV tuner G68 Digital Surround Controller8 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 rSACD/DVD-Aplayer 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 Audio outputs Digital version G68D1 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 rDigital and analogue version G68ADV 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 this outputAnalogue version G68AXV 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 this outputBalanced analogue version G68XXV 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 this outputDSP5000C 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 1 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 rG68ADV/AXV Digital Surround Controller G68ADV/AXV/XXV1 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 rSubwoofer G68 Digital Surround Controller SUB DIRECT CROSSOVER INPUTINPUT PHONO LEADVideo 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 Main composite outputs1 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 rVideo outputs Use this outputG68ADV/AXV/XXV 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 Television/monitor2 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 r2 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 rG68ADV/AXV/XXV Video recorderTuner and communications connections Use this connection2 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 rAuto Not Con2 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 r2 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 rG68 Digital Surround Controller To connect FM and AM antennaeConfiguring the digital surround controller Configuration WizardTo run the Configuration Wizard To go back to an earlier configuration optionStage 1 Resetting the product 1 Reset settingsReset all settings? To reset the configurationTypes TypeSpeakers Music SubStage 2 Configuring speakers To configure the speakers2 Select speakers EitherSpeaker options OptionValues DescriptionStage 3 Configuring sources 3 Configure sourcesTo configure a source RadioSource options OptionValues DescriptionStage 4 Configuring other settings 4 Other settingsTo configure other settings To change a settingSettings OptionValues DescriptionPage Introduction Using a Sound Pressure Level meterCalibrating the system To start the calibration procedure To exit from the calibration procedureTo complete the calibration procedure Left Level +0.0dBCalibration tests LevelsDistance Left Level +0.0dBFine tuning PhaseSetting Left DistanceC a l i b r a t i n g t h e s y s t e m Speaker sizeLeft Size 5/28 Using the Sine/Sub/Sens controls Subwoofer crossover frequencySinewave sweep test To adjust the subwoofer crossover frequency88.5Hz 81.5HzPause 80.0HzSetting up sources To adjust the sensitivity of a sourceTV 1.4V Peak TV 2.0V ClipDSP presets DSP presets4 D S P p r e s e t s Speaker layoutsStandard parameters Default4 D S P p r e s e t s ParameterDSP presets for two-channelmaterial Music and Trifield DSP preset parameters4 D S P p r e s e t s MusicAmbisonics and Super DSP preset parameters 4 D S P p r e s e t sAmbisonics SuperMusicLogic DSP preset parameters PLIIx Music DSP preset parameters4 D S P p r e s e t s MusicLogicPLIIx Movie and PLIIx THX DSP preset parameters 4 D S P p r e s e t sStereo and Direct PLIIx Movie and PLIIx THXTV Logic DSP preset parameters Mono DSP preset parameters4 D S P p r e s e t s TV LogicDSP presets for multichannel material Discrete and Cinema DSP preset parameters5 D S P p r e s e t s CinemaTHX DSP preset parameters 5 D S P p r e s e t sParameter OptionsAmbisonics Using dynamic range control5 D S P p r e s e t s 5 D S P p r e s e t s Defining your own presetsTo save the preset settings 5 D S P p r e s e t s To clear a user-definedpresetStored Troubleshooting General operating problems5 Tr o u b l e s h o o t i n g Standby light not litAudio problems 5 Tr o u b l e s h o o t i n gRemote not working Unit is overheatingAudible hiss at high volume settings Configuration Program Guide5 Tr o u b l e s h o o t i n g Sound not clearVideo problems Radio tuner problems5 Tr o u b l e s h o o t i n g sourceMaintenance CleaningTo clean the case, display panel, and keypad To clean the audio and video connectionsService and guarantee ServiceGuarantee 6 Tr o u b l e s h o o t i n gIndex I n d e6 I n d e 6 I n d e 6 I n d e video switching 6 I n d evideo connections 17 inputs 18 outputs Width DSP parameter6 I n d e