Dolby Laboratories DP570 Manuel d'utilisateur

Dolby DP570 Multichannel Audio Tool User’s ManualIssue 4 Part Number 91753®

x Dolby® DP570 Multichannel Audio Tool User’s ManualTable of Contents A.3.2 Setting the Master Trim...

84 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata DolbyEisaprofessionaltechnologyusedforbroadcastapplications,

Metadata OverviewDolby® DP570 Multichannel Audio Tool User’s Manual 85Therearetwofunctionalclassificationsofmetadata:Professional—Theseparam

86 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata Special ParametersThereareprofessionalparametersintheDolbyEbit

Dynamic Range ControlDolby® DP570 Multichannel Audio Tool User’s Manual 87DolbyDigitalconsumerdecodersnormalizetheaverageoutputlevel—thatis

88 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata TheDolbyDigitalstreamcarriesmetadataforthetwopossibleoperati

Dynamic Range Control ProfilesDolby® DP570 Multichannel Audio Tool User’s Manual 89Insomesituationsitmaybenecessarytofurtherconstrainsigna

90 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata • SpeechMaxBoost:15dB(below–50dB)BoostRange:–50to–31dB(5:1

DownmixingDolby® DP570 Multichannel Audio Tool User’s Manual 91Set‐topboxes,usedtoreceiveterrestrial,cable,orsatellitedigitaltelevision,t

92 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata ThereareseparatemetadataparametersthatgoverntheLo/RoandLt/Rt

Parameter DefinitionsDolby® DP570 Multichannel Audio Tool User’s Manual 93eachprogramcontainsitsownmetadata.Thedefaultsettingis5.1+2.Tabl

Table of ContentsDolby® DP570 Multichannel Audio Tool User’s Manual xiD.7 Extended Bitstream Information Parameters...

94 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata FigureD‐3 LFE Channel ThestatusoftheLFEChannelparameterindica

Parameter DefinitionsDolby® DP570 Multichannel Audio Tool User’s Manual 95Line Mode Compression Profile and RF Mode Compression Profile Fordetails

96 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata Center Downmix Level Whenthe encodedaudio hasthreefrontchannels

Parameter DefinitionsDolby® DP570 Multichannel Audio Tool User’s Manual 97Audio Production Information Thisparameterindicateswhetherthemixingl

98 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata Original Bitstream ThisparameterindicateswhethertheencodedDolby

Extended Bitstream Information ParametersDolby® DP570 Multichannel Audio Tool User’s Manual 99frequenciesabove120Hzthatwouldcausealiasingwhe

100 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata ATSCdocumentA/52.Thereviseddefinitionsallowmoreinformationto

Extended Bitstream Information ParametersDolby® DP570 Multichannel Audio Tool User’s Manual 101D.7.3 Lt/Rt Surround Downmix LevelThisparameterindi

102 Dolby® DP570 Multichannel Audio Tool User’s ManualA Guide to Dolby Metadata D.7.6 Surround EX ModeThisparameterisusedtoidentifytheencoded

Metadata CombinationsDolby® DP570 Multichannel Audio Tool User’s Manual 103CenterDwnmixLev –0.707dB(–3dB)N/A N/A –0.707dB(–3dB)–0.707dB(–3dB

Dolby® DP570 Multichannel Audio Tool User’s Manual 105A/DConverterType ... 102AnalogOutputMasterVolume

106 Dolby® DP570 Multichannel Audio Tool User’s ManualIndexLFEChannel... 94LFELowpassFil

IndexDolby® DP570 Multichannel Audio Tool User’s Manual 107RFOvermodulationProtection... 95RoomType ...

Dolby® DP570 Multichannel Audio Tool User’s Manual xiii List of FiguresFigure 1-1 DP570 Functional Block Diagram...

xiv Dolby® DP570 Multichannel Audio Tool User’s ManualList of Figures Figure C-6 User Presets Submenu ...

Dolby® DP570 Multichannel Audio Tool User’s Manual xv List of TablesTable 3-1 Front-Panel Navigation Buttons...

xvi Dolby® DP570 Multichannel Audio Tool User’s ManualList of Tables Table D-25 Lo/Ro Surround Downmix Level Settings...

Dolby® DP570 Multichannel Audio Tool User’s Manual 1 Chapter 1OverviewTheDolby®DP570providesunprecedentedcontrolandreferencemonitoringforth

2 Dolby® DP570 Multichannel Audio Tool User’s ManualOverview level,ProLogicdecoding,andtheotherfunctionscontrolledbymetadataandexperience

Principles of OperationDolby® DP570 Multichannel Audio Tool User’s Manual 3Figure1‐1 Figure 1-1 DP570 Functional Block DiagramEmulator(DRC,dialnor

ii Dolby® DP570 Multichannel Audio Tool User’s ManualDolby Laboratories, Inc.Corporate HeadquartersDolbyLaboratories,Inc.100PotreroAvenueSanFran

4 Dolby® DP570 Multichannel Audio Tool User’s ManualOverview TheCat.No.548AnalogOutputCardprovidesananalogmonitorsectionandsomeaddition

Dolby® DP570 Multichannel Audio Tool User’s Manual 5 Chapter 2Getting StartedThischapterdescribestheactionsnecessarytobeginusingtheDP570in

6 Dolby® DP570 Multichannel Audio Tool User’s ManualGetting Started 2.3.1 VentingDolby®professionalaudioproductsaredesignedtooperatewithina

Installing the Remote SoftwareDolby® DP570 Multichannel Audio Tool User’s Manual 7ForadiscussionoftheconnectortypesusedfortheV Refconnect

8 Dolby® DP570 Multichannel Audio Tool User’s ManualGetting Started 2.4.3 Hardware ConnectionToconnecttheDP570toitsremotecontroldevice,usea

Installing the Remote SoftwareDolby® DP570 Multichannel Audio Tool User’s Manual 92.4.6 Starting the Remote SoftwareTostarttheremotesoftware:1.

10 Dolby® DP570 Multichannel Audio Tool User’s ManualGetting Started 2.5 Selecting a Program ConfigurationThefirststepinmonitoringistoselecta

Dolby® DP570 Multichannel Audio Tool User’s Manual 11 Chapter 3Controlling the DP570AsshowninFigure 3‐1 ,youcancontroltheDP570inthreeways:

12 Dolby® DP570 Multichannel Audio Tool User’s ManualControlling the DP570 Figure3‐2 Figure 3-2 Front-Panel Buttons3.1.1 Main and Shifted Function

Menu StructuresDolby® DP570 Multichannel Audio Tool User’s Manual 133.1.5 Using the Program/Preset ButtonsUndernormalconditions,whenthePresetb

Dolby® DP570 Multichannel Audio Tool User’s Manual iiiRegulatory NoticesFCCNOTE:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsf

14 Dolby® DP570 Multichannel Audio Tool User’s ManualControlling the DP570 3.4.1 Reading the Default Status DisplayThedefaultdisplaywhentheunit

Monitoring Status Using the Front PanelDolby® DP570 Multichannel Audio Tool User’s Manual 15Basic Status IndicatorsTheindicatorsshowninFigure 3‐

16 Dolby® DP570 Multichannel Audio Tool User’s ManualControlling the DP570 Figure3‐6 Figure 3-5 Channel Activity LED IndicatorsChannelActivityLE

Using the Setup MenuDolby® DP570 Multichannel Audio Tool User’s Manual 173.5.2 Entering TextIncertainsituationsyouwillbepromptedtoentertext

18 Dolby® DP570 Multichannel Audio Tool User’s ManualControlling the DP570 3.6 Using the GPI/O ConnectorYoucanusethisporttoconnecttheDP570to

Using the GPI/O ConnectorDolby® DP570 Multichannel Audio Tool User’s Manual 19beedge‐triggered.TheActiveStatecolumnindicatestheDP570statet

20 Dolby® DP570 Multichannel Audio Tool User’s ManualControlling the DP570 Table 3‐8liststhepinsavailableforGPOandGPIfunctions.GPO SetupOutp

Using the GPI/O ConnectorDolby® DP570 Multichannel Audio Tool User’s Manual 21Edge‐triggeredsignalsareeitherpositiveornegative.Level‐triggere

Dolby® DP570 Multichannel Audio Tool User’s Manual 23 Chapter 4Using the DP570 FeaturesThischaptercoverseachdistinctfeatureoftheDP570indeta

iv Dolby® DP570 Multichannel Audio Tool User’s Manual 15. CAUTION:Troubleshootingmustbeperformedbyatrainedtechnician.Toreducetheriskofel

24 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features 4.3.1 Choosing the Source of MetadataNormallyyouwilluseanentireme

Generating and Adjusting MetadataDolby® DP570 Multichannel Audio Tool User’s Manual 25Youcanmanuallymodifymostofthesevaluesonthe metadata

26 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features 4.3.3 Using External MetadataWhenusingexternalmetadata,makecertain

Troubleshooting Metadata ProblemsDolby® DP570 Multichannel Audio Tool User’s Manual 274.4 Troubleshooting Metadata ProblemsTheDP570hasseveralsta

28 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features 4.7 Measuring and Setting the Dialogue LevelThedialoguelevelparamete

Measuring and Setting the Dialogue LevelDolby® DP570 Multichannel Audio Tool User’s Manual 29valuewithinDolbyEandDolbyDigitalbitstreams.The

30 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features Figure4‐6 Figure 4-5 Short-term Measurements Sincetheshort‐termmea

Setting Dynamic Range ControlDolby® DP570 Multichannel Audio Tool User’s Manual 31Figure4‐7 Tomeasuredialoguelevelusingtheremotesoftware,u

32 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features andSpeech.Eachprofileisasetofcompressionparameterssuchasrat

User PresetsDolby® DP570 Multichannel Audio Tool User’s Manual 33Figure4‐9 Figure 4-7 User Preset Window4.10.1 Authoring-Only PresetsSavinganaut

Dolby® DP570 Multichannel Audio Tool User’s Manual vIMPORTANTSAFETYNOTICEThisunitcomplieswithsafetystandardEN60065asappropriate.Theunits

34 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features ExampleYousettheemulatortoFull(nodownmix)withnocompression(t

Channel Mapping and Input RoutingDolby® DP570 Multichannel Audio Tool User’s Manual 35Figure4‐10 TheDP570inputrouterenablesyoutorerouteinp

36 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features 4.13 Using an External Shaft Encoder to Control Master VolumeThemaster

Sticky SettingsDolby® DP570 Multichannel Audio Tool User’s Manual 37UnityGainmodeisenabledbydefault.ToturnUnityGainmodeoff:1. ClickSetu

38 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 Features 4.20 Master Trim and Master VolumeTheMasterTrimslider,Figure 4‐10,

Dolby Pro Logic II SupportDolby® DP570 Multichannel Audio Tool User’s Manual 39Matrixisprimarilyforradioreceptionincars.Itisessentiallyth

Dolby® DP570 Multichannel Audio Tool User’s Manual 41 Chapter 5Using the DP570 inDVD MasteringDuringtheDVDmasteringprocess,itisimportanttoex

42 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in DVD Mastering 5.2 Typical TasksTheDP570isusedinthemonitorchaintoemul

Using the DP570 with Other Dolby EquipmentDolby® DP570 Multichannel Audio Tool User’s Manual 43OnceaDialogue Levelvaluehasbeenselected,eithe

44 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in DVD Mastering 5.4 Most Important MetadataThefollowinghighest‐priorityparam

Dolby® DP570 Multichannel Audio Tool User’s Manual 45 Chapter 6Using the DP570 in LiveRemote BroadcastInpreparationforandduringaliveremotebro

46 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Live Remote Broadcast Figure6‐1 Figure 6-1 Typical Live Remote Transmission

Typical TasksDolby® DP570 Multichannel Audio Tool User’s Manual 47Figure6‐2 Figure 6-2 Typical Downmix ParametersFurther, youcanassesswhether

48 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Live Remote Broadcast 6.2.2 Monitoring the Dialogue LevelAsyouwork,checkt

Importance of PresetsDolby® DP570 Multichannel Audio Tool User’s Manual 49•Lt/Rtsurrounddownmixlevel•Lo/RoCenterdownmixlevel•Lo/Rosurroundmi

Dolby® DP570 Multichannel Audio Tool User’s Manual 51 Chapter 7Using the DP570 inPostproductionTheDP570canbeusedinavarietyofpostproductions

52 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Postproduction 7.2 Typical TasksTheDP570isusedinthemonitorchaintoemu

Using the DP570 with Other Dolby EquipmentDolby® DP570 Multichannel Audio Tool User’s Manual 537.2.3 Monitoring DownmixesOnceaDialogueLevelvalue

Dolby® DP570 Multichannel Audio Tool User’s Manual vii Table of ContentsList of Figures...

54 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Postproduction 7.4 Most Important MetadataThefollowinghighest‐prioritypara

Dolby® DP570 Multichannel Audio Tool User’s Manual 55 Chapter 8Using the DP570 inMaster ControlDolby®Eencodingiscommonlyusedtodistributemulti

56 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Master Control Figure8‐1 Figure8‐2 Figure 8-1 Typical Master Control Setu

Typical TasksDolby® DP570 Multichannel Audio Tool User’s Manual 57Figure8‐3 Figure 8-2 Typical Downmix OptionsOr,ifaviewercomplainsaboutthe

58 Dolby® DP570 Multichannel Audio Tool User’s ManualUsing the DP570 in Master Control 8.3 Using Unity Gain ModeUnityGainmodeshouldbeofftobest

Dolby® DP570 Multichannel Audio Tool User’s Manual 59 Appendix AConfiguring a Monitor SystemConfiguringthemonitorsystemtoestablishabalancebet

60 Dolby® DP570 Multichannel Audio Tool User’s ManualConfiguring a Monitor System FigureA‐2 Figure A-2 Monitor Setup TabA.1.2 Selecting Analog Out

Assigning Monitor System Configuration SettingsDolby® DP570 Multichannel Audio Tool User’s Manual 61•Ifnosubwooferisavailable,redirecttheLFE

62 Dolby® DP570 Multichannel Audio Tool User’s ManualConfiguring a Monitor System A.1.4 Choosing Back Surround SpeakersThesettingrecordsthenumbe

Setting Delay ValuesDolby® DP570 Multichannel Audio Tool User’s Manual 633. ClickEnabledtoturn Panoramaon.Itisdisabledbydefault.A.2 Setti

viii Dolby® DP570 Multichannel Audio Tool User’s ManualTable of Contents 3.4.1 Reading the Default Status Display ...

64 Dolby® DP570 Multichannel Audio Tool User’s ManualConfiguring a Monitor System Surround DelayCminusS(C–S),theshorterofthetwosurrounds

Calibrating Speaker Playback LevelsDolby® DP570 Multichannel Audio Tool User’s Manual 65FigureA‐7 Figure A-7 Digital Reference Level A.3.2 Settin

66 Dolby® DP570 Multichannel Audio Tool User’s ManualConfiguring a Monitor System A.3.5 Generating Test NoiseTheDP570generatestwokindsoftestn

Calibrating Speaker Playback LevelsDolby® DP570 Multichannel Audio Tool User’s Manual 67FigureA‐8 Figure A-8 Multichannel Trims ControlsWhenyou

68 Dolby® DP570 Multichannel Audio Tool User’s ManualConfiguring a Monitor System A.3.10 Calibrating Emulator OutputIfyourDP570doesnotincl ude

Dolby® DP570 Multichannel Audio Tool User’s Manual 69 Appendix BConnector SpecificationsThisappendixgivesspecificationsandpinoutsforalltheco

70 Dolby® DP570 Multichannel Audio Tool User’s ManualConnector Specifications B.4 Video RefTheVideo RefconnectionsareBNCunbalancedfemaleconne

Rear-Panel RemoteDolby® DP570 Multichannel Audio Tool User’s Manual 71B.8 Rear-Panel Remote Thisisa9‐pinfemaleRS‐485D‐connector.Thepinouti

72 Dolby® DP570 Multichannel Audio Tool User’s ManualConnector Specifications B.11 Stereo/Mono/Solo Analog OutputThisisa25‐pinfemaleD‐connector

Dolby® DP570 Multichannel Audio Tool User’s Manual 73 Appendix CFront-Panel MenusThisappendixillustratestheunitfront‐panelmenusastrees.TheS

Table of ContentsDolby® DP570 Multichannel Audio Tool User’s Manual ix5.2.1 Setting the Dialogue Level...

74 Dolby® DP570 Multichannel Audio Tool User’s ManualFront-Panel Menus C.3 Metadata Params SubmenuFigureC‐2 Figure C-2 Metadata Parameters Submenu

Measure Control SubmenuDolby® DP570 Multichannel Audio Tool User’s Manual 75C.4 Measure Control SubmenuFigureC‐3 Figure C-3 Measure Control Submen

76 Dolby® DP570 Multichannel Audio Tool User’s ManualFront-Panel Menus C.5 Monitor Control SubmenuFigureC‐4 Figure C-4 Monitor Control SubmenuC.5.1

User Presets SubmenuDolby® DP570 Multichannel Audio Tool User’s Manual 77C.6 User Presets SubmenuFigureC‐6 Figure C-6 User Presets SubmenuC.7 I/O

78 Dolby® DP570 Multichannel Audio Tool User’s ManualFront-Panel Menus C.7.1 Router Config SubmenuFigureC‐8 Figure C-8 Router Config SubmenuC.7.2 G

Monitor Config SubmenuDolby® DP570 Multichannel Audio Tool User’s Manual 79C.8 Monitor Config SubmenuFigureC‐10 Figure C-10 Monitor Config MenuC.8

80 Dolby® DP570 Multichannel Audio Tool User’s ManualFront-Panel Menus C.8.2 Speaker Trims SubmenuFigureC‐12 Figure C-12 Speaker Trims SubmenuSpeak

Status MenuDolby® DP570 Multichannel Audio Tool User’s Manual 81C.9 Status MenuFigureC‐13 Figure C-13 Status MenuMetadata ParamsEnter to View5.1+2

Dolby® DP570 Multichannel Audio Tool User’s Manual 83 Appendix DA Guide to Dolby MetadataMetadataprovidesunprecedentedcapabilityforcontentprodu