Meridian Meridian 565 Technical Information

Meridian 565 Digital Surround Processoruser guide

6IntroductionA complete multimedia surroundsystemAn AC-3 LaserDisc system586•2DSP5000C504LaserDiscVideo recorder562V 565DSP5000 DSP5000The 562 Digital

Introduction7SpecificationDigital inputs Cable inputs: 75Ω. IEC958 and datacompatible.Optical input: TosLink to EIAJ, IEC958and data compatible.Analog

8IntroductionAvailable accessoriesThe following accessories are available from your dealer:❍ Meridian System Remote.❍ Power cord Europe.❍ Power cord C

Introduction9DSP presetsThe digital surround processor provides an extremelycomprehensive range of options for decoding both analogueand digital audio

10IntroductionMPEG SurroundMPEG Surround is the preferred audio format for DVD in PALterritories, and along with Dolby Digital is a contender as thest

Introduction11TV LogicTV Logic provides user-adjustable steering, and isrecommended for use with TV broadcasts that are not surroundencoded, where Pro

12IntroductionTrifieldTrifield uses a different processing technique to give a stable,three-dimensional image, with the ability to adjust the width of

Using the digital surround processor13Using the digitalsurround processorThis chapter provides a summary of the functions of the digital surroundproce

Using the digital surround processor14Front panel1 SourceSelects the source.2 StoreChanges the DSP presetselected for a source.3 DisplayChanges the in

Using the digital surround processor15Switching on and offTo switch to standby● Press Off on the front panel or the remote.The display will show:

PrefaceiiSales and service in the UKMeridian Audio LtdStonehillStukeley MeadowsCambsPE18 6EDEnglandTel (01480) 52144Fax (01480) 459934World Wide Webht

Using the digital surround processor16To select a source● Press Source (front panel) until the display shows the sourceyou require, or press the appro

Using the digital surround processor17The digital surround processor adjusts the volume in precisesteps of 1dB, where 9dB is equivalent to doubling th

Using the digital surround processor18Changing the DSP presetYou will be able to choose any of the predefined DSP presets, orany user-defined presets

Using the digital surround processor19The digital surround processor displays information about thecurrent settings on the twelve-character front pane

Using the digital surround processor20

Customising the digital surround processor21Customising the digitalsurround processorIn addition to being able to change the source, volume, and DSP p

Customising the digital surround processor22Locking and unlocking the menusTo simplify the normal operation of the digital surroundprocessor, and to p

Customising the digital surround processor23Changing the DSP parametersEach DSP preset provides a series of parameters that you canvary to customise t

Customising the digital surround processor24Parameter Range Default What it changesTreble * † -10dB to +10dB +0dB The slope of the frequency response.

Customising the digital surround processor25The digital surround processor provides sophisticated treble andbass controls, to allow you to adjust the

iiiPrefaceContentsIntroduction 1Introduces the digital surround processorand describes the alternative surroundsound configurations that it supports.T

Customising the digital surround processor26Note that this adjustment is not available for the Mono orAcademy presets.To change the relative level of

Customising the digital surround processor27If you have a centre loudspeaker you can adjust its relativeloudness, to provide the best integration of t

Customising the digital surround processor28Changing the spaciousness of the soundThe Dolby Digital, Music, Trifield, and Ambisonic presetsallow you t

Customising the digital surround processor29Changing the lip sync and on-screen displayTo change the position of theon-screen displayFor each DSP pres

Customising the digital surround processor30Each source has an appropriate DSP preset associated with itfor each music format. For example, for a stan

Customising the digital surround processor31The 565 Digital Surround Processor allows you to design up to16 DSP presets of your own and save them perm

Customising the digital surround processor32If you have an on-screen display it shows:● Press > or < to select the character position you want t

DSP presets33DSP presetsThis chapter gives technical information about each of the DSP presetsbuilt in to the digital surround processor.It explains t

DSP presets34Logic DSP presetsThe digital surround processor provides five DSP presetsspecifically designed for reproducing stereo film soundtracks.Th

DSP presets35THX CinemaThe THX Cinema DSP preset provides Pro Logic decoding,followed by additional signal processing refinements developedby Lucasfil

PrefaceivService and guarantee 45Gives information about servicing yourdigital surround processor.Glossary ...

DSP presets36TV Logic DSP preset parametersParameter Options What it changesRoll Off, Low, Med, High The degree of left-right steering.Yaw Off, Low, M

DSP presets37Music DSP presetsMusicThe Music DSP preset extracts the mono and surroundcomponents of the original recording. These componentsprovide an

DSP presets38This gives a significant improvement over traditional stereo,which converts the differences between the microphone signalsinto amplitude

DSP presets39AmbisonicThe Ambisonic DSP preset is designed for replaying materialencoded in UHJ format, the two-channel stereo-compatibleencoding foun

DSP presets40Ambisonic and Super Stereo DSPpreset parametersParameter Options What it changesWidth * 0 to 1 The width of the image.Position † A, C, E,

DSP presets41MPEG MusicMPEG Music is a special version of the MPEG preset designedfor listening to MPEG encoded music CDs.Stereo and DirectThe Stereo

DSP presets42The discrete digital formats can encode up to eight separatechannels, which can be decoded to provide separate signals tothe eight speake

DSP presets435.1 Movie DSP preset parametersParameter Options What it changesSurr. Rear Surr. Rear, Surr. Side, Switches the surroundSurr. All signal

DSP presets44Using peak-level limitingThe Max SPL or Limit parameters allow you to set up peak-levellimiting for bass signals, and the setting applies

Service and guarantee45Service and guarantee

Introduction1IntroductionThe Meridian 565 Digital Surround Processor is unique in being the firstcompletely digital surround-sound processor, and it d

Service and guarantee46ServiceThe Meridian 500 Series of hi-fi components have been carefullydesigned to give years of untroubled service. There are n

47GlossaryGlossaryAbsolute phaseA control which changes the phase of thesignals to all the speakers.AC-3An alternative name for the Dolby Digitalforma

Glossary48LayoutRefers to a particular arrangement ofspeakers and subwoofers. You can selectdifferent layouts for the cinema, music,and 5.1 DSP preset

49GlossaryOSDOn-Screen Display, which the 565 cansuperimpose on a composite video signalto give information about the state of thesystem, and to help

Glossary50TypeA standard configuration of the digitalsurround processor. Selecting a Typeresets any configuration and calibrationchanges.

51IndexIndexAAC-3 encoding 9AC-3 LaserDisc system 6Academy DSP preset 12, 36Accessories 8Ambisonic DSP preset 11, 39Audio formats 18, 37Dolby Digital

Index52DSP presets (continued)defining 31Direct 12, 41Dolby Digital 9, 42Dolby Digital THX 10, 42DTS 9, 42DTS Music 10, 40DTS THX 10, 43editing the na

53IndexMeridian Lossless Packing 10, 41MLP DSP preset 10, 41Mono DSP preset 12, 36Mono Rear (DSPparameter) 35, 36, 40MPEG DSP preset 42MPEG Music DSP

Index54UUHJ format 39Unlocking the menus 22User-defined presets 31editing the name 31Using the digital surroundprocessor 13VVolumeadjusting 17muting 1

2IntroductionThe 565 Digital Surround Processor is part of the Meridian 500Series of advanced digital, analogue, and video componentsdesigned to meet

Introduction3Three-channel stereo system Five-channel surround systemSample configurationsThe first step you can take in exploring the benefits of sur

4IntroductionTHX system Meridian Analogue TheatreM60565M60CM60M60M60The ultimate analogue surround system consists of two pairs ofMeridian M60 Active

Introduction5Meridian Digital Theatre™ Meridian Digital Theatre usingDSP6000 Digital Loudspeakers565DSP6000DSP6000DSP6000DSP6000DSP6000CThe ultimate M