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Dolby Laboratories Multichannel Audio Tool DP570 manuel d'utilisation

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Tout d'abord, le manuel d’utilisation Dolby Laboratories Multichannel Audio Tool DP570 devrait contenir:
- informations sur les caractéristiques techniques du dispositif Dolby Laboratories Multichannel Audio Tool DP570
- nom du fabricant et année de fabrication Dolby Laboratories Multichannel Audio Tool DP570
- instructions d'utilisation, de réglage et d’entretien de l'équipement Dolby Laboratories Multichannel Audio Tool DP570
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

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Habituellement, cela est dû au manque de temps et de certitude quant à la fonctionnalité spécifique de l'équipement acheté. Malheureusement, la connexion et le démarrage Dolby Laboratories Multichannel Audio Tool DP570 ne suffisent pas. Le manuel d’utilisation contient un certain nombre de lignes directrices concernant les fonctionnalités spécifiques, la sécurité, les méthodes d'entretien (même les moyens qui doivent être utilisés), les défauts possibles Dolby Laboratories Multichannel Audio Tool DP570 et les moyens de résoudre des problèmes communs lors de l'utilisation. Enfin, le manuel contient les coordonnées du service Dolby Laboratories en l'absence de l'efficacité des solutions proposées. Actuellement, les manuels d’utilisation sous la forme d'animations intéressantes et de vidéos pédagogiques qui sont meilleurs que la brochure, sont très populaires. Ce type de manuel permet à l'utilisateur de voir toute la vidéo d'instruction sans sauter les spécifications et les descriptions techniques compliquées Dolby Laboratories Multichannel Audio Tool DP570, comme c’est le cas pour la version papier.

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Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif Dolby Laboratories Multichannel Audio Tool DP570, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

Après un achat réussi de l’équipement/dispositif, prenez un moment pour vous familiariser avec toutes les parties du manuel d'utilisation Dolby Laboratories Multichannel Audio Tool DP570. À l'heure actuelle, ils sont soigneusement préparés et traduits pour qu'ils soient non seulement compréhensibles pour les utilisateurs, mais pour qu’ils remplissent leur fonction de base de l'information et d’aide.

Table des matières du manuel d’utilisation

  • Page 1

     Dolby DP570 Multichannel Audio Tool User’s Manual Issue 4 Part Number 91753 ®[...]

  • Page 2

     ii Dolb y ® DP570 Multichannel Audio T ool User’ s Manual Dolby Laboratories, Inc. Corporate Headquarters Dolby  Laboratories,  Inc. 100  Potrero  Avenue San  Francisco,  CA 94103 ‐ 4813 USA Telephone  415 ‐ 558 ‐ 0200 Fax  415 ‐ 863 ‐ 1373 www .dolby .com European Headquarters Dolby  Laboratories,  In[...]

  • Page 3

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual iii Regulatory Notices FCC NOTE:  This  equipment  has  been  tested  and  found  to  comply  with  the  limits  for  a  Class  A  digital  devi ce,  pursuant  to  Par t  15  of  the  FCC  Rules.  Th ese  limi[...]

  • Page 4

    iv Dolby ® DP570 Multichannel Audio T ool User’ s Manual 15. CAUTION:  T roubleshooting  must  be  performed  by  a  trained  technician.  To  reduce  the  risk  of  electric  shock,  do  not  attempt  to  service  this  equi pment  unless  you  are  qualified  to ?[...]

  • Page 5

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual v IMPORTANT  SAFETY  NOTICE This  unit  complies  with  safety  standard  EN60065  as  appropriate.  The  unit  shall  not  be  exposed  to  dripping  or  splashing  and  no  objects  filled  with  liquids,  su c[...]

  • Page 6

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  • Page 7

    Dolby ® DP570 Multichannel Au dio Tool User’s Manual vii Table of Contents List of Figures .................. ............. ............. ................ ............. ............. ................ ............. ............ ....... xiii List of Tables ....... ............. ............. ................ ............. ............. ...........[...]

  • Page 8

    viii Dolby ® DP570 Multichannel Au dio Tool User’s Manual Table of Contents 3.4.1 Reading the Default Status Display ... ....... ................ ............. ............. ................ ... 14 3.4.2 Viewing Status Screens .. ... ............. ... .... ... ... ... .... ... ............. ... ... ... .... ... ... ... ... .......... 14 3.4.3 Re[...]

  • Page 9

    Table of Contents Dolby ® DP570 Multichannel Au dio Tool User’s Manual ix 5.2.1 Setting the Dialogue Level ........ ................ ............. ................ ............. ................ ...42 5.2.2 Monitoring the Dialogue Level ........... .... ...... ................ ............. ............. ................ 42 5.2.3 Monitoring Down[...]

  • Page 10

    x Dolby ® DP570 Multichannel Au dio Tool User’s Manual Table of Contents A.3.2 Setting the Master Trim ............. ............. ................ ................ ............. ................ ... 65 A.3.3 Setting the Master Volume ........ ............. ................ ................ ............. ................ ...65 A.3.4 Picking a Ta[...]

  • Page 11

    Table of Contents Dolby ® DP570 Multichannel Au dio Tool User’s Manual xi D.7 Extended Bitstream Information Parameters ....... ............. ............. ................ ............. ...... 99 D.7.1 Pref erred Stereo Downmix Mode ... ....... ... ............. ............. ............. ................ .... 100 D.7.2 Lt/R t C enter Dow nmix[...]

  • Page 12

    [...]

  • Page 13

    Dolby ® DP570 Multichannel Au dio Tool User’s Manual xiii List of Figures Figure 1-1 DP570 Functional Blo ck Diagram ..... ............. ... .... ... ... ............. ... ... .... ... ............. ... ... ... .... .... ... 3 Figure 2-1 Monitor Configuration Tab ................ .......... ............. ................ ............. ..........[...]

  • Page 14

    xiv Dolby ® DP570 Multichannel Au dio Tool User’s Manual List of Figures Figure C-6 User Presets Submenu . ... ............. ............. ................ ............. ............. ................ ......... ...... 77 Figure C-7 I/O Control Submenu .................. ...... ....... ................ ............. ............. ................[...]

  • Page 15

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual xv List of Tables Table 3-1 Front-Panel Navigation Buttons .................. ... ... .... ... ... ............. ... ... .... ... ... ... .... ... ............. .. . ... 12 Table 3-2 Shifted Key Functions .......... ............. ... .... ... ... ... .... ... ... ............. ... ... .... ..[...]

  • Page 16

    xvi Dolby ® DP570 Multichannel Audio T ool User’ s Manual List of Tables Table D-25 Lo/Ro Surround Downmix Level Settings .......................... ... ... ... ... .... ... ... ... .... ... ... ... ... .... ... . 1 01 Table D-26 Surround EX Mode Settings .... ............ ............. ................. ............ ............. ..............[...]

  • Page 17

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 1 Chapter 1 Ov er vie w The  Dolby ®  DP570  provides  unprecedented  control  and  refere nce  monitoring  for  the  creation  and  deliv ery  of  Dolby  Digi tal  and  Dolby  E  surround  sound  as  well  as  metada[...]

  • Page 18

    2 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Overview level,  Pro  Logic  decoding,  and  the  other  functions  controlled  by  metadata  and  experienced  by  consumers.  The  DP570’ s  convenient  and  user ‐ friendly  interface  simplifies  multichannel  audi[...]

  • Page 19

    Principles of Operation Dolby ® DP570 Multichannel Audio T ool User’ s Manual 3 Figure  1 ‐ 1  Figure 1-1 DP570 Functional Block Diagram Emulator (DRC, dialnorm, downmix, P/L decode) Router AES Rcvr x4 AES Xmit x4 D/A x8 Trims x8 Output Bal. x8 Output Bal. (2) Output Bal. AES Rcvr 1/2 3/4 5/6 7/8 Lt/ Rt L L/R Prgm Select Metadata List Mo[...]

  • Page 20

    4 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Overview The  Cat.  No.  548  Analog  Output  Ca rd  provides  an  anal og  monitor  section  and  some  additional  features  to  ease  interfacing  to  existing  mixing  and  monitoring  environments.  This  opt[...]

  • Page 21

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 5 Chapter 2 Getting Star ted This  chapter  describes  the  actions  necessary  to  begin  using  the  DP570  in  a  basic  configuration. 2.1 Unp acking and Inspection Before  unpacking  the  un it,  inspect  the  outer  carton ?[...]

  • Page 22

    6 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Getting Star ted 2.3.1 V enting Dolby ®  professional  audio  products  are  designe d  to  operate  within  a  temperature  range  of  5°C  to  45°C.  They  use  natural  convection  cooling  and  therefore  should [...]

  • Page 23

    Installing the Remote Softwar e Dolby ® DP570 Multichannel Audio T ool User’ s Manual 7 For  a  discussion  of  the  connector  types  used  for  the  V Ref  connection  on  the  DP570,  see  Appendix B . 2.3.5 Making a Power Connection The  DP570  contains  a  90–264  VA C ,  5[...]

  • Page 24

    8 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Getting Star ted 2.4.3 Hardware Connection To  connect  the  DP570  to  its  remote  control  device,  use  a  serial  cable  from  your  computer  to  either  the  front ‐ panel  Remote RS-232  port  or  the  rear ?[...]

  • Page 25

    Installing the Remote Softwar e Dolby ® DP570 Multichannel Audio T ool User’ s Manual 9 2.4.6 St arting the Remote Software To  start  the  rem ote  software: 1. Double ‐ click  the  program  icon. 2. Review  the  communication  settings,  and  modify  them  if  necessary . 3. Click  OK . The [...]

  • Page 26

    10 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Getting Star ted 2.5 Selecting a Program Configuration The  first  st ep  in  monitoring  is  to  select  a  program  configuration  that  reflects  the  number  of  channels  within  the  program(s)  you  will  monitor . ?[...]

  • Page 27

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 11 Chapter 3 Contr o lling the DP570 As  shown  in  Figure 3 ‐ 1 ,  you  can  control  the  DP570  in  three  way s : •D i r e c t l y ,  by  pushing  buttons  on  the  front  panel  of  the  unit • Remotely ,  using  [...]

  • Page 28

    12 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Controlling the DP570 Figure  3 ‐ 2  Figure 3-2 Front-Panel Buttons 3.1.1 Main and Shif ted Fun ctions of the Buttons Most  of  the  buttons  hav e  tw o  functions:  a  main  function  and  a  shifted  function.  Th e  main  funct[...]

  • Page 29

    Menu Structures Dolby ® DP570 Multichannel Audio T ool User’ s Manual 13 3.1.5 Using the Program/Preset Buttons Under  normal  conditions,  when  the  Preset  button  is  not  pressed  or  li t,  the  buttons  labeled  1 ,  2 ,  3 ,  and  4  allow  you  to  move  betw een ?[...]

  • Page 30

    14 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Controlling the DP570 3.4.1 Reading the Default St atus Display The  default  display  when  the  unit  pow ers  up  is  the  top  screen  of  the  status  menu  shown  in  Figure 3 ‐ 3 . Figure  3 ‐ 3  Figure 3-3 Default S ta[...]

  • Page 31

    Monitor ing Status Using the F ront P anel Dolby ® DP570 Multichannel Audio T ool User’ s Manual 15 Basic St atus Indicators The  indicators  shown  in  Figure 3 ‐ 4  display  the  basic  status  information  listed  in  Ta b l e 3 ‐ 3 . Figure  3 ‐ 4  Figure  3 ‐ 5  Figure 3-4 Basic LED[...]

  • Page 32

    16 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Controlling the DP570 Figure  3 ‐ 6  Figure 3-5 Channel Activity LED Indicators Channel  Activity  LED  indicator  meanings  are  detailed  in  Ta b l e 3 ‐ 4 . 3.5 Using the Setup Menu The  initial  screen  of  the  setup  menu  is[...]

  • Page 33

    Using the Setup Menu Dolby ® DP570 Multichannel Audio T ool User’ s Manual 17 3.5.2 Entering T ext In  certain  situations  you  will  be  prompted  to  enter  text.  In  the  text  entry  window ,  the  firs t  line  prompts  you  to  ent er  text.  The  second  line [...]

  • Page 34

    18 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Controlling the DP570 3.6 Using the GPI/O Connector Yo u  can  use  this  port  to  connect  the  DP570  to  your  studio  console  or  existing  control  equipment.  A  stand ‐ alone  remote  control  unit,  the  Cat. [...]

  • Page 35

    Using the GPI/O Conn ector Dolby ® DP570 Multichannel Audio T ool User’ s Manual 19 be  edge ‐ trig gered.  The  Act ive  S tate  column  indicates  the  DP570  state  that  results  when  the  pin  is  forced  to  the  logic  level  indicated,  if  it  is  level ‐ tr[...]

  • Page 36

    20 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Controlling the DP570 Ta b l e 3 ‐ 8  lists  the  pins  av ailable  for  GPO  and  GPI  functions. GPO Setup Output  pins  4  and  7–19  in  Figure 3 ‐ 7  and  Ta b l e 3 ‐ 8  are  user ‐ defined.  To  define  a ?[...]

  • Page 37

    Using the GPI/O Conn ector Dolby ® DP570 Multichannel Audio T ool User’ s Manual 21 Edge ‐ triggered  signals  are  either  positive  or  negativ e.  Lev el ‐ triggered  signals  are  either  high  or  low . The  Function  menu  lets  yo u  assign  a  function  to  the  pin[...]

  • Page 38

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  • Page 39

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 23 Chapter 4 Using the DP570 F eatures This  chapter  covers  each  distinct  feature  of  the  DP570  in  detail.  The  main  power  of  the  Dolby ®  DP570  is  its  ability  to  accept  any  program  input  and [...]

  • Page 40

    24 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es 4.3.1 Choosing the Source of Met adat a Normally  you  will  use  an  entire  metadata  stream  from  one  source,  but  that  is  not  required.  Yo u  control  this  source  choice  at  three  [...]

  • Page 41

    Gener ating and Adjusting Metadata Dolby ® DP570 Multichannel Audio T ool User’ s Manual 25 Yo u  can  manu ally  modify  most  of  these  va l u e s  on  the  metadata  tabs  of  the  DolbyRemote 570  application  shown  in  Figure 4 ‐ 1 .  Dialogue  normalization  controls  ar[...]

  • Page 42

    26 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es 4.3.3 Using External Met adat a When  using  external  metadata,  make  certain  that  the  val u e s  are  correct  for  the  program.  P articularly  when  you  use  external  program  configurations, ?[...]

  • Page 43

    T roubleshooting Metada ta Problems Dolby ® DP570 Multichannel Audio T ool User’ s Manual 27 4.4 T roubleshooting Met adat a Problems The  DP570  has  several  status  indicators  to  help  troubleshoot  metadata ‐ related  problems. The  front ‐ panel  status  display  shows  the  metadata [...]

  • Page 44

    28 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es 4.7 Measuri ng and Setting the Dialogue Le vel The  dialogue  level  parameter,  also  known  as  dialogue  normalization  or  dialnorm ,  is  a  vital  element  in  audio  content  creation.  The  proper[...]

  • Page 45

    Measuring and Setting the Dialogue Le vel Dolby ® DP570 Multichannel Audio T ool User’ s Manual 29 va l u e  within  Dolby  E  and  Dolby  Digital  bitstreams.  The  DP570  measurement  feature  will  yield  best  results  when  the  operator  measur es  portions  of  the  prog[...]

  • Page 46

    30 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es Figure  4 ‐ 6  Figure 4-5 Short-term Measurements Since  the  short ‐ term  measuremen t  considers  only  the  previous  10  seconds  of  program  material,  the  measured  va l u e  can  be  much ?[...]

  • Page 47

    Setting Dynamic Range Control Dolby ® DP570 Multichannel Audio T ool User’ s Manual 31 Figure  4 ‐ 7  To  measure  di alogue  lev el  using  the  remote  softw are,  use  the  controls  shown  in  Fig ure 4 ‐ 4  for  these  steps: 1. Use  the  Channel  Select  control  to ?[...]

  • Page 48

    32 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es and  Speech .  Each  profile  is  a  set  of  compression  parame ters  such  as  ratio,  attack,  and  release. For  detailed  information,  see  Secti on D.4 . The  Custom  adjustment  on  the [...]

  • Page 49

    User Presets Dolby ® DP570 Multichannel Audio T ool User’ s Manual 33 Figure  4 ‐ 9  Figure 4-7 User Preset Window 4.10.1 Authoring-Only Preset s Saving  an  authoring ‐ only  preset  allows  you  to  test  certain  com binations  of  metadat a  settings  you  find  useful  without  al[...]

  • Page 50

    34 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es Example Yo u  set  the  emulator  to  Full  (no  downmix)  with  no  compression  (the  def ault  for  the  Custom  selection).  Yo u  then  audition  a  few  authoring  pr esets  until  yo[...]

  • Page 51

    Channel Mapping and Input Routing Dolby ® DP570 Multichannel Audio T ool User’ s Manual 35 Figure  4 ‐ 10  The  DP570  input  rout er  enables  you  to  reroute  input  channels  to  conform  to  the  automatically  assigned  channel  mapping.  The  input  router  is  acti[...]

  • Page 52

    36 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es 4.13 Using an External Shaf t En coder to Control Master V olume The  master  vol um e  function  is  available  on  DP570s  that  hav e  the  Cat.  No.  548  Analog  Output  Card  installed.  The  GPI/O [...]

  • Page 53

    Stic ky Settings Dolby ® DP570 Multichannel Audio T ool User’ s Manual 37 Unity  Gain  mode  is  enabled  by  default.  To  turn  Unity  Gain  mode  off: 1. Click  Setup  in  the  Main  window  to  open  the  Setup  window . 2. Uncheck  the  Unity  Gain  Mode  box ?[...]

  • Page 54

    38 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 Featur es 4.20 Master T rim and Master Volume The  Master  Tr i m  slider ,  Figure 4 ‐ 10 ,  allows  you  to  raise  or  low er  the  vol um e  of  the  signal  input  to  the  DP570  before  processing  b[...]

  • Page 55

    Dolby Pr o Logic I I Suppor t Dolby ® DP570 Multichannel Audio T ool User’ s Manual 39 Matrix  is  primarily  for  radio  rece ption  in  cars.  It  is  essent ially  the  same  as  the  origina l  passive  Dol by  Surround  decoder  without  the  direction al  steering  pro[...]

  • Page 56

    [...]

  • Page 57

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 41 Chapter 5 Using the DP570 in DVD Master ing During  the  DVD  mastering  process,  it  is  important  to  experience  the  program  in  the  same  wa y  a  viewer  will  in  the  home  so  that  yo u  can  assess[...]

  • Page 58

    42 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in DV D M a s t e r i n g 5.2 T ypical T asks The  DP570  is  used  in  the  monit or  chain  to  emulate  a  consumer ʹ s  listening  environme nt. 5.2.1 Setting the Dialogue Level As  the  mix  is  nearing  completion[...]

  • Page 59

    Using the DP570 with Other Dolb y Equipment Dolby ® DP570 Multichannel Audio T ool User’ s Manual 43 Once  a  Dialogue  Lev el  val ue  has  been  selected,  either  short ‐ term  or  infinite  measurements  can  be  used  depending  on  you r  preference.  Again,  see  Section [...]

  • Page 60

    44 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in DV D M a s t e r i n g 5.4 Most Import ant Met adat a The  following  hig hest ‐ priority  parameters  have  the  greatest  impact  on  your  wo rk .  We  suggest  yo u  address  them  in  this  order: 1. Program ?[...]

  • Page 61

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 45 Chapter 6 Using the DP570 in Liv e Remote Br oadcast In  preparation  for  and  during  a  live  remote  broadcast,  it  is  important  to  exper ience  the  audio  program  the  same  way  a  viewer  will  in  the [...]

  • Page 62

    46 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Li ve Remote Broadcast Figure  6 ‐ 1  Figure 6-1 T y pical Live Remote Transmission Setup 6.2 T ypical T asks A  chief  purpose  of  the  DP570  in  a  live  remote  environment  is  to  provide  downmixing  emulation,[...]

  • Page 63

    Ty p i c a l Ta s k s Dolby ® DP570 Multichannel Audio T ool User’ s Manual 47 Figure  6 ‐ 2  Figure 6-2 T ypical Downmix Parameters Further ,  you  can  assess  whether  the  announcer ʹ s  voic e  will  surviv e  during  a  Pro  Logic ®  or  Pro  Logic  II  decode  from  a ?[...]

  • Page 64

    48 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Li ve Remote Broadcast 6.2.2 Monitoring the Dialogue Level As  you  wo r k,  check  the  dialogue  lev el  indicators—the  yell o w  numbers  shown  in  Figure 6 ‐ 3 —frequently .  Make  adjustments  to  the  mix ?[...]

  • Page 65

    Impor tance of Pr esets Dolby ® DP570 Multichannel Audio T ool User’ s Manual 49 •L t / R t  surround  downmix  lev el •L o / R o  Center  downmix  level •L o / R o  surround  mix  lev el 6.6 Import ance of Presets In  a  live  broadc ast  situation,  the  abilit y  to  preview  metadat[...]

  • Page 66

    [...]

  • Page 67

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 51 Chapter 7 Using the DP570 in Postpr oduction The  DP570  can  be  used  in  a  var i e t y  of  postproduction  settings.  We  discuss  one  example. The  instructions  in  this  section  allow  you  to  use  the  DP57[...]

  • Page 68

    52 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Postpr oduction 7.2 T ypical T asks The  DP570  is  used  in  the  monit or  chain  to  emulate  the  consumer ʹ s  listening  environment. 7.2.1 Measuring Dialogue Level As  the  mix  is  near ing  completion,  u[...]

  • Page 69

    Using the DP570 with Other Dolb y Equipment Dolby ® DP570 Multichannel Audio T ool User’ s Manual 53 7.2.3 Monitoring Downmixes Once  a  Dialogue  Leve l  va l u e  has  been  set  and  a  measurement  mode  selected,  check  downmixes  and  make  any  adjustments  necessary  so  tha[...]

  • Page 70

    54 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Postpr oduction 7.4 Most Import ant Met adat a The  following  hig hest ‐ priority  parameters  have  the  greatest  impact  on  your  wo rk .  We  suggest  yo u  address  them  in  this  order: 1. Program  confi[...]

  • Page 71

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 55 Chapter 8 Using the DP570 in Master Contr ol Dolby ®  E  encoding  is  commonly  used  to  distribute  multichannel  au dio  from  a  network  center  to  multiple  affiliate  stations,  usually  via  satellite  or  optical[...]

  • Page 72

    56 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Master Control Figure  8 ‐ 1  Figure  8 ‐ 2  Figure 8-1 T ypical Master Control Setup 8.2 T ypical T asks Wit h in  a  multichannel  master  control  environment,  it  is  necessary  to  experience  the  program,  bo[...]

  • Page 73

    Ty p i c a l Ta s k s Dolby ® DP570 Multichannel Audio T ool User’ s Manual 57 Figure  8 ‐ 3  Figure 8-2 T y pi cal Downmix Options Or ,  if  a  viewer  complains  about  the  audio  quality  on  a  mono  televi sion  when  viewing  a  5.1  program,  the  MC  operator  can ?[...]

  • Page 74

    58 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Using the DP570 in Master Control 8.3 Using Unity Gain Mode Unity  Gain  mode  should  be  off  to  best  emulate  a  consumer ʹ s  listening  experience.  To  compare  between  off ‐ air  (for  example,  consumer  emulation) ?[...]

  • Page 75

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 59 Appendix A Configur ing a Monitor System Configuring  the  monitor  sys tem  to  establish  a  balance  between  all  channels  and  to  ensure  that  all  speakers  play  back  at  the  correct  leve l  relative  to ?[...]

  • Page 76

    60 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Configuring a Monitor System Figure  A ‐ 2  Figure A-2 Monitor Setup T ab A.1.2 Selecting Analog Outp ut s The  sys tem  automati cally  detects  the  presence  of  the  Cat  No.  548  Analog  Output  Card,  and  checks  the  Analo[...]

  • Page 77

    Assign ing Monito r System Co nfigurat ion Settin gs Dolb y ® DP570 Multichannel Audio T ool User’ s Manual 61 •I f  no  subwoofer  is  av ailable,  redirect  the  LFE  channel  to  the  Left  and  Right  channel  decoder  outputs. Bass Management This  option  determines  how  low ?[...]

  • Page 78

    62 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Configuring a Monitor System A.1.4 Choosing Back Surround Speakers The  setting  records  the  number  of  back  surround  speakers  you  ha ve  in  you r  monitoring  system.  The  defaul t  is  None .  If  this  not  corre[...]

  • Page 79

    Setting Delay Values Dolb y ® DP570 Multichannel Audio T ool User’ s Manual 63 3. Click  Enabled  to  turn  Panorama  on.  It  is  disabled  by  default. A.2 Setting Delay V alues For  optimal  performance,  signals  from  all  the  speakers  should  arriv e  at  the  reference ?[...]

  • Page 80

    64 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Configuring a Monitor System Surround Delay C  minus  S  (C  –  S),  the  shorter  of  the  two  surr ound  speaker  distances,  equals  the  surround  delay  setting  in  ms.  Calculating Pro Logic Delay Pro  Logic  de[...]

  • Page 81

    Calibrating Speaker Playback Levels Dolb y ® DP570 Multichannel Audio T ool User’ s Manual 65 Figure  A ‐ 7  Figure A-7 Digital Reference Level A.3.2 Setting the Master T rim Set  the  Mast er  Tr i m  shown  in  Figure 4 ‐ 10  to  0 . A.3.3 Setting the Master V olu me Before  generating  test  noise, ?[...]

  • Page 82

    66 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Configuring a Monitor System A.3.5 Generating T est Noise The  DP570  generates  two  ki nds  of  test  noise:  pink  and  filtered.  Pink  noise  exerts  an  equal  sound  pressure  level  across  the  entire  spectrum. [...]

  • Page 83

    Calibrating Speaker Playback Levels Dolb y ® DP570 Multichannel Audio T ool User’ s Manual 67 Figure  A ‐ 8  Figure A-8 Multichannel Trims Controls When  you  have  set  trim  levels  for  al l  you r  speakers,  click  the  test  noise  control  shown  in  Figure A ‐ 2  directly ?[...]

  • Page 84

    68 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Configuring a Monitor System A.3.10 Calibrating Emulator Output If  you r  DP570  does  not  include  the  Cat.  No.  548  Analog  Output  Card,  calibrate  your  speaker  sy stem  using  the  emulator  outputs  and  externa[...]

  • Page 85

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 69 Appendix B Connector Specifications This  appendix  gives  specifications  and  pinouts  for  all  the  connectors  used  on  the  DP570,  and  the  cables  that  can  be  used  to  connect  to  it. B.1 Front-Panel Rem[...]

  • Page 86

    70 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Connector Specifications B.4 Video Ref The  Vi de o Re f  connections  are  BNC  unbalanced  female  connectors  that  rece ive  NTSC  composite  programs  or  color  black  video.  Si gnal  level s  are  compliant  with  SM[...]

  • Page 87

    Rear-Panel Remote Dolb y ® DP570 Multichannel Audio T ool User’ s Manual 71 B.8 Rear-Panel Remote This  is  a  9 ‐ pin  female  RS ‐ 485  D ‐ connector .  The  pinout  is  SMPTE  207M  electrical/mechanical  specification  compat ible. B.9 10Base-T Port (Ethernet) The  Ethernet  port  is ?[...]

  • Page 88

    72 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Connector Specifications B.1 1 Stereo/Mono/Solo Analog Output This  is  a  25 ‐ pin  female  D ‐ connector . B.12 GPI/O Connector For  details  of  the  GPI/O  connector ,  see  Assigning  GPI/O  Functions  to  Specific  Pins  on ?[...]

  • Page 89

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 73 Appendix C Fr ont-P anel Menus This  appendix  illustrates  the  unit  front ‐ panel  menus  as  trees.  The  Setup  men u  begins  on  this  page.  The  Status  menu  is  shown  in  Status  Menu  on  page 81. [...]

  • Page 90

    74 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Fr ont-P anel Menus C.3 Met adat a Params Submenu Figure  C ‐ 2  Figure C-2 Metadata Parameters Submenu[...]

  • Page 91

    Measure Contr ol Submenu Dolby ® DP570 Multichannel Audio T ool User’ s Manual 75 C.4 Measure Control Submenu Figure  C ‐ 3  Figure C-3 Measure Control Submen u Measure Control Set Dialogue Lev Dialogue Lev –27dB Measure Control Measure Mode Measure Control Measure Reset Measure Control Channel Select Measure Control Measure Meth od Se[...]

  • Page 92

    76 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Fr ont-P anel Menus C.5 Monitor Control Submenu Figure  C ‐ 4  Figure C-4 Monitor Control Submenu C.5.1 Dolby Pro Logic II Submenu Figure  C ‐ 5  Figure C-5 Pro Logic II Submenu Monit or Cont rol Program Select Monitor Control Lt/Rt Input Monitor Control Extended BSI Monito[...]

  • Page 93

    User Preset s Submenu Dolby ® DP570 Multichannel Audio T ool User’ s Manual 77 C.6 User Preset s Submenu Figure  C ‐ 6  Figure C-6 User Presets Submenu C.7 I/O Control Submenu Figure  C ‐ 7  Figure C-7 I/O Control Submenu U s er P res et s R ec al l P res et R ec al l P res et 0 1 X Pr e se t N a me U s er P res e t s Sa ve Pr e [...]

  • Page 94

    78 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Fr ont-P anel Menus C.7.1 Router Config Submenu Figure  C ‐ 8  Figure C-8 Router Config Submenu C.7.2 GPI/O Setup Submenu Figure  C ‐ 9  Figure C-9 GPI/O Setup Submenu Router Out 1 Audio In 1 Save Router Preset 1 Router Config Router Pres ets Router Presets Recall Router Ro[...]

  • Page 95

    Monitor Conf ig Submenu Dolby ® DP570 Multichannel Audio T ool User’ s Manual 79 C.8 Monitor Config Submenu Figure  C ‐ 10  Figure C-10 Monitor Config Menu C.8.1 Speaker Config Submenu Figure  C ‐ 11  Figure C-1 1 Speaker Config Submenu Monitor Config Speak er Co nfi g Monitor Config Speaker Delays Monitor Config Speake r Tr ims [...]

  • Page 96

    80 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Fr ont-P anel Menus C.8.2 Speaker T rims Submenu Figure  C ‐ 12  Figure C-12 S peake r T rims Submenu Spe a ke r T r ims Master Tr im Spe a ke r T r ims Test N ois e Spe a ke r T r ims Sp e a ker Sel e ct Spe a ke r T r ims M ul t i c han Ls Spe a ke r T r ims Multic ha n R Spe a k[...]

  • Page 97

    Status Menu Dolby ® DP570 Multichannel Audio T ool User’ s Manual 81 C.9 S t atus Menu Figure  C ‐ 13  Figure C-13 S tatus Menu Metadata Par ams En te r t o Vi e w 5 .1+ 2 Internal P r ogr am 3/ 2 27 Master Volume Er r or St at u s En te r t o Vi e w Audi o Input Vi deo Ref User Pr eset Fi rmw a re V e rs i o n Pr ess En t e r t o vie w [...]

  • Page 98

    [...]

  • Page 99

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 83 Appendix D A Guide to Dolb y Metadata Metadata  provides  unprecedented  capability  for  content  producers  to  deliver  the  highest  quality  audio  to  consumers  in  a  range  of  listening  environments.  It  also [...]

  • Page 100

    84 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata Dolby  E  is  a  professional  technology  us ed  for  broadcast  applications,  such  as  program  origination  and  distribution;  the  Dolby  E  bitstream  carries  the  entire  metadata  p[...]

  • Page 101

    Metadata Overview Dolby ® DP570 Multichannel Audio T ool User’ s Manual 85 There  are  two  functional  classifications  of  metadata:  Professional—These  parameters  are  carried  only  in  the  Dolby  E  bits tream.  They  are  used  to  automatically  configure  a  dow[...]

  • Page 102

    86 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata Special Parame ters There  are  professional  parameters  in  the  Dolby  E  bitstream  that  are  not  under  direct  user  control,  such  as  Timecode  and  Pitch  Shift.  Timecode Dolby  E ?[...]

  • Page 103

    Dynamic Range Control Dolby ® DP570 Multichannel Audio T ool User’ s Manual 87 Dolby  Digital  consumer  decode rs  normalize  the  av erage  output  lev el—that  is ,  the  output  level  av eraged  ov er  time—to  –31  dB FS  (31  dB  below  0  dB  full ‐ scale  di[...]

  • Page 104

    88 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata The  Dolby  Digital  stream  carries  metad ata  for  the  tw o  possible  operating  modes  in  the  decoder .  The  operating  modes  are  known  as  Line  mode  and  RF  mode  due [...]

  • Page 105

    Dynamic Range Contr ol Pr ofiles Dolby ® DP570 Multichannel Audio T ool User’ s Manual 89 In  some  situations  it  may  be  nec essary  to  further  constrain  signal  peaks  abov e  the  av erage  dialogue  level  so  that  there  is  less  than  20  dB  headroom.  T[...]

  • Page 106

    90 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata • Speech Max  Boost:  15  dB  (below  –50  dB) Boost  Range:  –50  to  –31  dB  (5:1  ratio) Null  Band  Wi d t h :  5  dB  (–31  to  –26  dB) Early  Cut  Range:  –26  to  [...]

  • Page 107

    Downmixing Dolby ® DP570 Multichannel Audio T ool User’ s Manual 91 Set ‐ top  boxes,  used  to  receiv e  terre strial,  cable,  or  satell ite  digital  television,  typically  offer  an  analog  mono  signal  modulated  on  the  RF/antenna  output,  a  line ‐ level  a[...]

  • Page 108

    92 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata There  are  separate  metadata  pa rameters  that  govern  the  Lo/Ro  and  Lt/Rt  downmixes.  Certain  metadata  parameters  allow  the  engineer  to  select  how  the  stereo  downmix  is ?[...]

  • Page 109

    P arameter Definitions Dolby ® DP570 Multichannel Audio T ool User’ s Manual 93 each  program  contains  its  own  metadata.  The  default  setting  is  5.1+2.  Ta b l e D ‐ 3  shows  all  the  av ailable  configurations. Program Description T ext This  is  a  32 ‐ character  ASCII [...]

  • Page 110

    94 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata Figure  D ‐ 3  LFE Channel The  status  of  the  LFE  Channel  parameter  indicates  to  a  Dolby  Digital  encoder  whether  an  LFE  channel  is  present  within  the  bitstream.  Channel [...]

  • Page 111

    P arameter Definitions Dolby ® DP570 Multichannel Audio T ool User’ s Manual 95 Line Mode Compression Prof ile and RF Mode Compression Profile For  details  of  the  av ailable  profiles,  see  Section D.4 . RF Overmodulation Protection This  parameter  is  designe d  to  protect  against  overmodulation[...]

  • Page 112

    96 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata Center Downmix Level When  the  encoded  audio  has  thr ee  front  channels  (L,  C,  R),  but  the  consumer  has  only  tw o  front  speaker s  (left  and  right),  this  parameter  indicat[...]

  • Page 113

    P arameter Definitions Dolby ® DP570 Multichannel Audio T ool User’ s Manual 97 Audio Production Information This  parameter  indicates  whether  the  mixing  lev el  and  room  type  val u e s  are  va l i d .  Ye s  indicates  that  a  receiver  or  amplifier  can  use  these ?[...]

  • Page 114

    98 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata Original Bit stream This  parameter  indicates  whether  the  encoded  Dolby  Digital  bitstream  is  the  master  ver s io n  or  a  copy .  It  has  no  effect  on  Dolby  Digital  decoder s ?[...]

  • Page 115

    Extended Bitstream Information Par ameters Dolby ® DP570 Multichannel Audio T ool User’ s Manual 99 frequencies  above  12 0  Hz  that  wo u ld  cause  aliasing  when  decoded.  This  filter  should  only  be  switched  off  if  the  audio  to  be  enco ded  is  known  to[...]

  • Page 116

    100 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata AT S C  document  A/52.  The  revised  definitions  allow  more  information  to  be  carri ed  about  the  audio  program  and  also  allow  more  choic es  for  stereo  downmixing.  When ?[...]

  • Page 117

    Extended Bitstream Information Par ameters Dolby ® DP570 Multichannel Audio T ool User’ s Manual 101 D.7.3 Lt/Rt Surround Downmix Level This  parameter  indicates  the  level  shift  applied  to  the  surround  channels  when  downmixing  to  an  Lt/Rt  output.  Its  operation  is  simi[...]

  • Page 118

    102 Dolby ® DP570 Multichannel Audio T ool User’ s Manual A Guide to Dolby Metadata D.7.6 Surround EX Mode This  parameter  is  used  to  identify  the  encoded  audio  as  material  encoded  in  Surround  EX TM .  This  parameter  is  only  used  if  the  encoded  audio  ha[...]

  • Page 119

    Metadata Combinations Dolby ® DP570 Multichannel Audio T ool User’ s Manual 103 Center  Dwnmix  Lev –0.707  dB (–3  dB) N/A N/A –0.707  dB (–3  dB) –0.707  dB (–3  dB) Srnd  Dwnmix  Lev –0.707  dB (–3  dB) N/A N/A –0.707  dB (–3  dB) –0.707  dB (–3  dB) Dolby  Srnd  Mo[...]

  • Page 120

    [...]

  • Page 121

    Dolby ® DP570 Multichannel Audio T ool User’ s Manual 105 A/D  Converter  Type ................. .............. ............... 102 Analog  Output  Master  Volume ......... .............. ...... 17 Applications Digital  Television ................. .............. .............. ..... 4 DVD  Mastering .............. .........[...]

  • Page 122

    106 Dolby ® DP570 Multichannel Audio T ool User’ s Manual Index LFE  Channel .................... .............. .............. .............. 94 LFE  Lowpass  Filter ............. .............. ................. ...... 98 Live  Remote  Broadcast ................ .............. ........ 45 – 49 Connecting  the  DP570 ....[...]

  • Page 123

    Index Dolby ® DP570 Multichannel Audio T ool User’ s Manual 107 RF  Overmodulation  Protection ...................... ........ 95 Room  Type ............. .............. .............. ............... ........ 97 Safety .................... ................. .............. ............... ... iii – iv Setup  Menu ............... ..[...]