Dolby Laboratories DP570 manuale d’uso

Dolby DP570 Multichannel Audio Tool User’s Manual Issue 3 Part Number 91753 ®[...]

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,  Inc. Wootton  Bassett Wiltshire SN4  8QJ England Telephon[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual iii Table of Contents List of Figures ............... ................ ................ ................ ................ ................ ................. ............... ....... viii List of Tables ............. ................. ................ ................ ................ ...........[...]

iv Dolby ® DP570 Multichannel Audio Too l User’s Manual 3.5 Using the Setup Menu...... .... ... ... ... .... ... ... ... ... ................. ... ... ................ ... .... ... ................ ... ....... ...... 18 3.5.1 Selecting Parameters ... ... ... ... .... ... ... ................ ... .... ... ... ... ................ .... ... ... ...[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual v 5.3 Using the DP570 with Other Dolby Equipment .... ... ................ ................ ................. ................ ...... 45 5.4 Most Important Met adata .............. ................ .................... ................ ................ ................ .. ........... 45 Chapter[...]

vi Dolby ® DP570 Multichannel Audio Tool User’s Manual A.3.5 Generating Test Noise....... ... .... ... ... ... ... .... ... ... ... .... ... ... ... .... ... ... ... ................ .... ... ... ... ... ... . ...... 68 A.3.6 Increasing the System Volu me .......... ................ ................. ................ ................... ........[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual vii D.7.3 Lt/Rt Surround Downmix Lev el....... ................... ....................... ................... .................... .... 1 02 D.7.4 Lo/Ro Center Downmix Level...... ................... .................... ................... ................... ........... 1 02 D.7.5 Lo/Ro Surr[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual viii List of Figures Figure 1-1 DP570 Functional Block Diagram ............ ......... .... ................ ................ ................... .............. 3 Figure 2-1 Monitor Configuration Tab .......... ... ... ... .... ... ... ... .... ... ... ................ ... .... ... ... .........[...]

List of Figures Dolby ® DP570 Multichannel Audio Tool User’s Manual ix Figure C-4 Monitor Control Submenu . ... .... ... ... ................ ... .... ... ... ... ................ .... ... ... ... ................ .... ... .. 77 Figure C-5 Pro Logic II Submenu .......... .... ... ... ... ... .... ... ... ... .... ................ ... ... ... ...[...]

x Dolby ® DP570 Multichannel Audio Tool User’s Manual List of Figures[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual xi List of Tables T able 3-1 Front-Panel Nav igation Buttons .............. .... ... ... ... .... ................ ... ... ... .... ... ................ ... ... .... ... ... 14 T able 3-2 Shifted Key Func tions .......... ................... ....... ............. ................ ..............[...]

xii Dolby ® DP570 Multichannel Audio Tool User’s Manual List of Table s T able D-28 Metadata Combinations ....... ................ .................... ................ ................ ................... ........... 1 04[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 1 Chapter 1 Ov er view The  Dolby ®  DP570  provides  unprecedented  control  and  refere nce  monitoring  for  the  creation  and  delivery  of  Dolby  Digital  and  Dolby  E  surround  sound  as  well  as  metadata ?[...]

2 Dolby ® DP570 Multichannel Audio Tool User’s Manual Overvi ew Principles of Operation level,  Pro  Logic  decoding,  and  the  other  functions  controlled  by  metadata  and  experienced  by  consumers.  The  DP570’ s  conv enient  and  user ‐ friendly  interface  simplifies ?[...]

Overvi ew Principles of Operation Dolby ® DP570 Multichannel Audio Tool User’s Manual 3 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 Mode Spkr select[...]

4 Dolby ® DP570 Multichannel Audio Tool User’s Manual Overvi ew Main Applications The  Cat.  No.  548  Analog  Option  Card  provides  an  analog  monitor  secti on  and  some  additional  features  to  ease  interfacing  to  existing  mixing  and  monitoring  environments. [...]

Dolby ® DP570 Multichannel Audio Tool 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 [...]

6 Dolby ® DP570 Multichannel Audio Tool User’s Manual Getting Star ted Installing the DP570 2.3.1 V enting Dolby ®  professional  audio  products  are  designed  to  operate  within  a  temperature  range  of  5°C  to  45°C.  They  use  natural  convection  cooling  and  theref[...]

Getting Star ted Installing the Remote Software Dolby ® DP570 Multichannel Audio Tool User’s Manual 7 If  there  is  no  video  input  or  the  video  input  fails,  the  DP570  generates  a  default  fra me  based  on  1,536  samples  at  the  current  audio  clock  r[...]

8 Dolby ® DP570 Multichannel Audio Tool User’s Manual Getting Star ted Installing the Remote Software 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  po[...]

Getting Star ted Installing the Remote Software Dolby ® DP570 Multichannel Audio Tool User’s Manual 9 To  end  remote  operation  and  resume  using  the  front ‐ panel  interface,  press  Shif t  then  again. 2.4.6 St arting the Remote Software To  start  the  remot e  softw are: 1. Double[...]

10 Dolby ® DP570 Multichannel Audio Tool User’s Manual Getting Star ted Selecting a Program Configuration Figure 2- 1 Monitor Configuration T ab 2.5 Selecting a Program Configuration The  first  step  in  monitoring  is  to  select  a  program  configuration  that  reflects  the  number  of  channe[...]

Getting Star ted Selecting a Program Configuration Dolby ® DP570 Multichannel Audio Tool User’s Manual 11 Figure 2- 2 Program Configuration Selecto r[...]

12 Dolby ® DP570 Multichannel Audio Tool User’s Manual Getting Star ted Selecting a Program Configuration[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 13 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  the[...]

14 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Using the Front-Panel Buttons  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.  The  main [...]

Controlling the DP570 Menu Structures Dolby ® DP570 Multichannel Audio Tool User’s Manual 15 3.1.4 Other Shif ted Functions When  the  Shift  button  is  pressed  and  li t,  the  other  keys  hav e  the  functions  listed  in  Ta b l e 3 ‐ 2. 3.2 Menu Structures The  DP570  front  panel[...]

16 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Monitoring Status Using the Front Panel Figure 3- 3 Default S tatus Menu Screen The  main  status  display  includes  fiv e  elements: 1. Program  configuration:  can  contain  any  of  the  supported  program  configurations[...]

Controlling the DP570 Monitoring Status Using the Front Panel Dolby ® DP570 Multichannel Audio Tool User’s Manual 17 Basic St atus Indicators The  indicators  shown  in  Figure 3 ‐ 4  display  the  basic  status  information  listed  in  Ta b l e 3 ‐ 4.  Figure 3- 4 Basic LED Indicators Channel S t atus[...]

18 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Using the Setup Menu  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 ?[...]

Controlling the DP570 Using the Setup Menu Dolby ® DP570 Multichannel Audio Tool User’s Manual 19 If  the  cursor  is  flashing  after  an  option  val u e ,  that  op tion  is  not  currently  selected.  Press  Enter  to  select  it.  Pressing  Esc  at  an  option  with [...]

20 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Using the GPI/O Connector 3.5.6 Analog Output Master V olume Press  Shif t ,  Enter  to  access  the  master  volu m e  control  for  the  optional  analog  outputs. Use  the  arrow  buttons  to  adjust  the  v[...]

Controlling the DP570 Using the GPI/O Connector Dolby ® DP570 Multichannel Audio Tool User’s Manual 21 Ta b l e 3 ‐ 7  provides  a  description  for  functions  that  can  be  assigned  to  GPI  pins.  Some  functions  have  restrictions  on  the  polarity  or  trigger  type. ?[...]

22 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Using the GPI/O Connector 3.6.2 Assigning GPI/O Functi ons to S pecific Pins The  GPI/O  port  is  a  female  37 ‐ pin  D ‐ connector.  See  Figure 3 ‐ 7  to  identi fy  pin  number s.  Figure 3- 7 GPI/O Pin Numbers Ta b l[...]

Controlling the DP570 Using the GPI/O Connector Dolby ® DP570 Multichannel Audio Tool User’s Manual 23 GPO Setup Output  pins  4  and  7–19  in  Figure 3 ‐ 7  and  Ta b l e  are  user ‐ defined.  To  define  a  function  for  an  output  pin,  enter  the  GPO Setup  menu [...]

24 Dolby ® DP570 Multichannel Audio Tool User’s Manual Controlling the DP570 Using the GPI/O Connector The  Function  menu  lets  yo u  assign  a  function  to  the  pin  yo u  have  selected.[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 25 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 ?[...]

26 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Generating and Adjusting Metadata 4.3.1 Choosing the Source of Met adat a Normally  yo u  will  use  an  entire  metadata  stream  from  one  source,  but  that  is  not  required.  Yo u  control  this  source [...]

Using the DP570 Features Generating and Adjusting Metadata Dolby ® DP570 Multichannel Audio Tool User’s Manual 27 Yo u  can  manuall y  modify  most  of  these  val u e s  on  the  metadata  tabs  of  the  DolbyRemote  570  application  shown  in  Figure 4 ‐ 1.  Dialogue  normaliza[...]

28 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Generating and Adjusting Metadata Example 1—Overriding an Individual Parameter V alue We ’ l l  assume  you  are  using  an  external  metadata  stream.  The  output  of  the  DP570  is  feeding  a  DP571  or [...]

Using the DP570 Features Troubleshootin g Metadata Problems Dolby ® DP570 Multichannel Audio Tool User’s Manual 29 Figure 4- 2 Adding a Second Progra m 4.4 T roubleshooting Metadat a Problems The  DP570  has  several  status  indicators  to  help  troubleshoot  metadata ‐ related  problems. The  front ‐ panel[...]

30 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Monitoring Downmixes 4.6 Monitoring Downmixes The  DP570  allows  you  to  audition  va ri o u s  downmixes  before  finalizing  the  content.  Previewing  downmix  conditions  is  essential  in  providing  the[...]

Using the DP570 Features Measuring and Setting the Di alogue Level Dolby ® DP570 Multichannel Audio Tool User’s Manual 31 characters  with  different  voc al  qualities.  In  programs  without  dialogue,  such  as  a  music  concert,  sections  of  av erag e  level  need  to  be  ide[...]

32 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Measuring and Setting the Dialogue Le vel This  process  allows  you  to  accurately  estimate  the  average  level  of  all  of  the  individual  dialogue  sections. 1 The  term  representative  se ction  i[...]

Using the DP570 Features Measuring and Setting the Di alogue Level Dolby ® DP570 Multichannel Audio Tool User’s Manual 33 the  short ‐ term  measurement,  as  they  find  the  informat ion  on  near ‐ term  dynamics  to  be  ver y  usefu l  when  mixing  or  producing  a  program. ?[...]

34 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Setting Dynamic Range Control 3. The  default  measurement  mode  is  Infinite.  Click  the  Infin ite  or  Short  Te r m  button  to  move  back  and  forth  between  the  modes. The  softw are  displ[...]

Using the DP570 Features User Presets Dolby ® DP570 Multichannel Audio Tool User’s Manual 35 4.10 User Preset s Yo u  can  save  sy stem  se ttings  in  up  to  32  separate  presets  for  quick  recall  in  the  Setup  User  Presets  window  shown  in  Figu re 4 ‐ 7.  Yo u ?[...]

36 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Using Lt/Rt Input Mode 4.10.2 Emulator-Only Presets Emulator  presets  are  particularly  useful  for  checking  specific  combinations  of  downmix  and  comp ressio n  modes,  perhaps  on  a  differe nt  speaker[...]

Using the DP570 Features Channel Mapping and Input Routing Dolby ® DP570 Multichannel Audio Tool User’s Manual 37 For  an  example  of  monitoring  a  Dolby Surround  progra m  while  creating  metadata  for  a  5.1 ‐ channel  program,  see  Using  the  DP570  in  P ostproduction  [...]

38 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Using an External Shaft Encoder to Control Master Volume The  DP570  input  rout er  enables  you  to  reroute  input  channels  to  conform  to  the  automatically  assigned  channel  mapping.  The  input  [...]

Using the DP570 Features Emulator Bypass Dolby ® DP570 Multichannel Audio Tool User’s Manual 39 Ta b l e 4 ‐ 6  describes  the  electrical  characteristics. 4.14 Emulator Byp ass When  you  enable  Emulator  Bypass ,  the  front ‐ panel  Esc  button  is  illuminated.  In  this  mode,  the[...]

40 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Sticky Settings 4.17 Sticky Settings When  you  enable  Sticky  Settings ,  yo ur  last  settings  for  dynamic  range  control  profiles,  downmix,  speaker  selection,  LFE  mon itor ,  master  volum e,  a[...]

Using the DP570 Features Dolby Pro Logic II Support Dolby ® DP570 Multichannel Audio Tool User’s Manual 41 The  master  Vo l u m e  slider  allow  you  to  raise  or  lower  the  volu m e  of  all  the  outputs  simultaneously . 4.21 Dolby Pro Logic II Support The  DP570  supports  four ?[...]

42 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 Features Dolby Pro Logic II Support Panorama  mod e  sends  the  stereo  signal  to  the  surround  speakers  as  well  as  the  front  Left  and  Right.  The  P anorama  setting  is  disregarded  if  the[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 43 Chapter 5 Using the DP570 in D VD Master ing During  the  DVD  mastering  process,  it  is  important  to  experie nce  the  program  in  the  same  wa y  a  viewer  wil l  in  the  home  so  that  you  can  assess[...]

44 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in D VD Master ing Typical Tasks 5.2.1 Setting the Dialogue Level As  the  mix  is  nearing  completion,  use  the  dialogue  level  indicators  in  DolbyRemote  570  shown  in  Figure 5 ‐ 2  during  a  representativ [...]

Using the DP570 in D VD Master ing Using the DP570 with Other Dolby Equipment Dolby ® DP570 Multichannel Audio Tool User’s Manual 45 5.2.3 Monitoring Downmixes Once  dialnorm  has  been  set  and  a  measur ement  mode  selected,  check  downmixes  and  make  any  adjustments  necessary  so  [...]

46 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in D VD Master ing Most Important Metadata 3. Dialogue  level:  the  dialnorm  parameter .  Compare  the  measured  va l u e  (shown  in  yel lo w  numbers)  to  the  dialnorm  metadata  parameter  va l u e  (shown  [...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 47 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  h[...]

48 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Live Remote Broadcast Typical Tasks Figure 6- 1 T ypical Live Remote T ransmission Setup 6.2 T ypical T asks A  chief  purpose  of  the  DP570  in  a  live  remote  environment  is  to  provide  downmixing  emulation,  which [...]

Using the DP570 in Live Remote Broadcast Typical Tasks Dolby ® DP570 Multichannel Audio Tool User’s Manual 49 Figure 6- 2 T ypical Downmix Parameters Further ,  you  can  assess  whether  the  announcer ʹ s  voi ce  will  surviv e  during  a  Pro  Logic ®  or  Pro  Logic  II  decode  fro[...]

50 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Live Remote Broadcast Using the DP570 with Other Dolby Equipment 6.2.2 Monitoring the Dialogue Level As  you  wo r k,  check  the  dialogue  level  indicators—the  yello w  num bers  shown  in  Figure 6 ‐ 3—frequently .  Make ?[...]

Using the DP570 in Live Remote Broadcast Importance of Presets Dolby ® DP570 Multichannel Audio Tool User’s Manual 51 •L t / R t  center  downmix  lev el •L t / R t  surround  downmi x  level •L o / R o  center  downmix  lev el •L o / R o  surround  mix  lev el 6.6 Import ance of Presets In  a  l[...]

52 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Live Remote Broadcast Importance of Presets[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 53 Chapter 7 Using the DP570 in P ostpr oduction The  DP570  can  be  used  in  a  var i et y  of  postproduction  settings.  We  discuss  one  example. The  instructions  in  this  section  allow  you  to  use  the  DP570 [...]

54 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Postpr oduction Typical Activities 7.2 T ypical Activities The  DP570  is  used  in  the  monit or  chain  to  emulate  consumer ʹ s  listeni ng  environm ent. 7.2.1 Measuring Dialogue Level As  the  mix  is  nearing  com[...]

Using the DP570 in Postpr oduction Using the DP570 with Other Dolby Equipment Dolby ® DP570 Multichannel Audio Tool User’s Manual 55 Identified  Clips  on  pa ge 31  for  more  information  on  these  modes  an d  to  understand  the  differences  be twee n  them. 7.2.3 Monitoring Downmixes Once ?[...]

56 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Postpr oduction Most Important Metadata 7.4 Most Import ant Met adata The  following  hig hest ‐ priority  parameters  have  the  greatest  impact  on  your  wor k.  We  suggest  yo u  address  them  in  this  order: [...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 57 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  mu ltiple  affiliate  stations,  usually  via  satellite  or  optical [...]

58 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Master Control Typical Activities Figure 8- 1 T ypical Master Control Setup 8.2 T ypical Activities Wit hi n  a  multichannel  master  control  environment,  it  is  necessary  to  experience  the  program,  both  picture  and ?[...]

Using the DP570 in Master Control Typical Activi ties Dolby ® DP570 Multichannel Audio Tool User’s Manual 59 Figure 8- 2 T ypical Do wnmix Options Or ,  if  a  viewer  complains  about  the  au dio  quality  on  a  mono  television  when  viewing  a  5.1  program,  the  MC  operator [...]

60 Dolby ® DP570 Multichannel Audio Tool User’s Manual Using the DP570 in Master Control Using Unity Gain Mode 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  consum[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 61 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  relativ e  to ?[...]

62 Dolby ® DP570 Multichannel Audio Tool User’s Manual Configuring a Monitor Syst em Assigning Monitor System Configuration Settings Figure A-2 Monitor Setup T ab A.1.2 Selecting Analog Outp ut s The  system  automatica lly  detects  the  presence  of  the  Cat  No.  548  Analog  Outputs  Card,  and  [...]

Configuring a Monitor Syst em Assigning Monitor System Configuration Settings Dolby ® DP570 Multichannel Audio Tool User’s Manual 63 •I f  you  have  small  Center  and  Surround  speakers,  direct  the  low  frequencies  from  those  channels  to  the  Left,  Right,  or  Subwoofer ?[...]

64 Dolby ® DP570 Multichannel Audio Tool User’s Manual Configuring a Monitor Syst em Assigning Monitor System Configuration Settings Figure A-3 Bass Management Settings A.1.4 Choosing Back Surround Speakers The  setting  records  the  number  of  back  surround  speakers  you  have  in  yo u r  monitoring ?[...]

Configuring a Monitor Syst em Setting Delay Values Dolby ® DP570 Multichannel Audio Tool User’s Manual 65 Figure A-5 Pro Log ic II Cont rols 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  s[...]

66 Dolby ® DP570 Multichannel Audio Tool User’s Manual Configuring a Monitor Syst em Setting Delay Values A.2.1 Calculating Delay V alues Center Delay L  minu s  C  (L  –  C)  equals  the  Center  delay  setting  in  milliseconds. For  example,  if  C  is  2  feet  less  than  L ?[...]

Configuring a Monitor Syst em Calibrating Speaker Playback Lev els Dolby ® DP570 Multichannel Audio Tool User’s Manual 67 A.3 Cal ibrating Speaker Playback Levels The  following  sections  discuss  and  illustra te  the  steps  in  speaker  calibration  in  the  order  they  should  be  performe[...]

68 Dolby ® DP570 Multichannel Audio Tool User’s Manual Configuring a Monitor Syst em Calibrating Speaker Playback Levels •F o r  music  mixing,  each  speaker  channel  should  be  set  to  the  same  SPL  (the  same  as  television  mixing).  There  is  no  standard  practice ?[...]

Configuring a Monitor Syst em Calibrating Speaker Playback Lev els Dolby ® DP570 Multichannel Audio Tool User’s Manual 69 A.3.7 Measuring SPL To  accurately  measure  SPL: 1. Sit  in  the  refer ence  listening  position.  Set  the  SPL  meter  to  C  wei ght ing  and  Slow  response. 2. Faci[...]

70 Dolby ® DP570 Multichannel Audio Tool User’s Manual Configuring a Monitor Syst em Assigning a Dim Setting Figure A-9 Real-time Analyzer (RT A) Display If  an  RT A  is  not  av ailable,  setting  the  LFE  channel  higher  (e. g.,  89  dBc  for  the  Subw oofer  channel  when  the  C[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 71 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 R[...]

72 Dolby ® DP570 Multichannel Audio Tool User’s Manual Connector Specifications Video Ref B.4 Video Ref The  Vid e o  Ref  connections  are  BNC  unbalanced  female  connectors  that  receive  NTSC  composite  programs  or  color  black  video.  Si gnal  level s  are  compliant  w[...]

Connector Specifications Rear-Panel Remote Port Dolby ® DP570 Multichannel Audio Tool User’s Manual 73 B.8 Rear-Panel Remote Port 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) Th[...]

74 Dolby ® DP570 Multichannel Audio Tool User’s Manual Connector Specifications Stereo/Mono/Solo Analog Output 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 ?[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 75 Appendix C Fr ont-Pa nel Menus This  appendix  illustrates  the  front ‐ panel  menus  as  trees,  divided  into  subsections  for  clarity .  The  Setup  menu  begins  on  this  page.  The  Status  menu  is  shown [...]

76 Dolby ® DP570 Multichannel Audio Tool User’s Manual Fr ont-P anel Menus Metadata Params Submenu C.3 Metadat a Params Submenu Figure C-2 Metadat a Parameters Submenu C.4 Measure Control Submenu Figure C-3 Measure Control Submenu 1. Dialogue Le v 11. Room Type 21. DC Filter 2. Channel Mo de 12. Copyrigh t 22 . Lowpass Filt 3. LFE Channel 13. Or[...]

Fr ont-P anel Menus Monitor Control Submenu Dolby ® DP570 Multichannel Audio Tool User’s Manual 77 C.5 Monitor Control Submenu Figure C-4 Monitor Control Submenu C.5.1 Dolby Pro Logic II Menu Submenu Figure C-5 Pro Logic II Submenu Monit or C ontr ol Program Select Monitor Control Lt/Rt Input Monitor Control Extended BSI Monitor Control Pro Logi[...]

78 Dolby ® DP570 Multichannel Audio Tool User’s Manual Fr ont-P anel Menus User Presets Submenu C.6 User Presets Submenu Figure C-6 User Presets Submenu C.7 I/O Cont rol Submenu Figure C-7 I/O Control Submenu U s er P res et s R ec all P res et R ec all P res et 0 1 X Pr e s et Na me U s er P res et s Sa ve Pr e se t Sa ve Pr e se t P res et 01 [...]

Fr ont-P anel Menus I/O Control Submenu Dolby ® DP570 Multichannel Audio Tool User’s Manual 79 C.7.1 Router Config Submenu Figure C-8 Router Config Submenu C.7.2 GPI/O Setup Submenu 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 Router Presets Save Router Rec[...]

80 Dolby ® DP570 Multichannel Audio Tool User’s Manual Fr ont-P anel Menus Monitor Config Submenu C.8 Monitor Config Submenu Figure C-10 Monitor Config Menu C.8.1 Speaker Config Submenu Figure C-1 1 S peaker Config Submenu Monitor Config Speaker Config Monitor Config Speaker D elays Monitor Control Speaker Trims Monitor Control Digital Ref Monit[...]

Fr ont-P anel Menus Monitor Config Submenu Dolby ® DP570 Multichannel Audio Tool User’s Manual 81 C.8.2 Speaker T rims Submenu Figure C-12 S peaker Trims Submenu Spe ake r T r ims Master Tr im Spe ake r T r ims Test N ois e Spe ake r T r ims Sp e a ke r Se le c t Spe ake r T r ims M ul t i c han Ls Spe ake r T r ims Multic ha n R Spe ake r T r i[...]

82 Dolby ® DP570 Multichannel Audio Tool User’s Manual Fr ont-P anel Menus Status Menu C.9 St atus Menu Figure C-13 S tatus Menu Me t adat a Par am s E n te r to V i e w 5 .1+ 2 Inter nal P r ogr am 3/ 2 27 Mas ter Vol ume Err or Status En te r to Vi e w Audi o Input Vi deo Ref User Pr eset Fi rm w a re V e rs i on Press Enter t o v i ew c ur r [...]

Dolby ® DP570 Multichannel Audio Tool 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  p[...]

84 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Metadata Overview Dolby  E  is  a  professional  technology  us ed  for  broadcast  applications,  such  as  program  origination  and  distribution;  the  Dolby  E  bitstream  carries  the  entire ?[...]

A Guide to Dolby Metadata Metadata Overview Dolby ® DP570 Multichannel Audio Tool 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 [...]

86 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Dialogue Level 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 D[...]

A Guide to Dolby Metadata Dialogue Level Dolby ® DP570 Multichannel Audio Tool User’s Manual 87 listening  environments,  and  is  essen tial  in  any  content  production,  whether  it  is  for  transmission  in  a  broadcast  stream  or  for  direct  di stribution  to  consum[...]

88 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Dynamic Range Control D.3 Dynamic Range Control Different  home  listening  environments  present  a  wide  range  of  requir ements  for  dynamic  range.  Rather  than  simply  compressing  the  audio  progra[...]

A Guide to Dolby Metadata Dynamic Range Control Profiles Dolby ® DP570 Multichannel Audio Tool User’s Manual 89 devices  are  usually  downmixing  (for  example,  wh en  receiving  a  5.1 ‐ channel  signal) .  Howeve r ,  in  these  products,  the  consumer  ma y  have  a  choice  [...]

90 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Downmixing • Film  Standard Max  Boost:  6  dB  (below  –43  dB) Boost  Range:  –43  to  –31  dB  (2:1  ratio) Null  Band  Wi d t h:  5  dB  (–31  to  –26  dB)  Early  Cut  Range:[...]

A Guide to Dolby Metadata Downmixing Dolby ® DP570 Multichannel Audio Tool User’s Manual 91 As  with  stereo  mixing  where  the  mix  is  monitored  in  mono  on  occasion  to  maintain  compatibility ,  multichannel  audio  mixing  requires  the  engineer  to  reference  t[...]

92 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Parameter Defini tions stream  to  either  a  downstream  decoder  or  an  integrated  amplifier  with  Dolby  Digital  decoding. In  each  of  these  devices,  the  analog  stereo  output  is  one[...]

A Guide to Dolby Metadata Parameter Def initions Dolby ® DP570 Multichannel Audio Tool User’s Manual 93 metadata  stream  without  Extended  BSI  parameters,  and  Extended  BSI  parameters  translate  seamlessly  to  decoders  that  read  only  universa l  parameters. D.6.1 Universal Paramet[...]

94 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Parameter Defini tions Dialogue Level The  Dialogue  Lev el  parameter  is  discusse d  in  Dialogue  Level  on  page 86. Channel Mode This  paramete r  (also  known  as  Audio  Coding  mode )  indicates  the [...]

A Guide to Dolby Metadata Parameter Def initions Dolby ® DP570 Multichannel Audio Tool User’s Manual 95 Channel  parameter  can  be  set.  Yo u  must  have  at  least  thr ee  channels  to  be  able  to  add  an  LFE  channel. Bit stream Mode This  parameter  describes  the  au[...]

96 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Parameter Defini tions Line Mode Compression Prof ile and RF Mode Compression Profile For  details  of  the  av ailable  profiles,  see  Dynamic  Range  Control  Profiles  on  page 89. RF Overmodulation Protection This  paramet[...]

A Guide to Dolby Metadata Parameter Def initions Dolby ® DP570 Multichannel Audio Tool User’s Manual 97 parameter  during  downmixing  in  Lo/Ro  mode  wh en  Extended  BSI  parameters  are  not  active. Surround Downmix Level When  the  encoded  audio  has  one  or  more  Surround  [...]

98 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Parameter Defini tions Audio Production Information This  parameter  indicates  whether  the  mixing  lev el  and  room  type  val ue s  are  va l i d .  Ye s  indicates  that  a  receiver  or  amplifier  c[...]

A Guide to Dolby Metadata Parameter Def initions Dolby ® DP570 Multichannel Audio Tool User’s Manual 99 Copyright Bit This  parameter  indicates  whether  the  encoded  Dolby  Digital  bitstream  is  copyright  protected.  It  has  no  effect  on  Dolby  Di gital  decoders  and  its [...]

100 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Parameter Defini tions it  prevents  aliasing  on  decoding  and  is  normally  switched  on.  This  parameter  is  not  passed  to  the  consumer  decoder . LFE Lowp ass Filter This  parameter  determines[...]

A Guide to Dolby Metadata Extended Bitstream Information Parameters Dolby ® DP570 Multichannel Audio Tool User’s Manual 101 Digital  program  is  decod ed  to  5.1  channels,  but  it  provides  an  Lt/Rt  output  that  can  be  decoded  with  Pro  Logic  to  L,  C,  R,  S, [...]

102 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Extended Bitstream Information Parameters D.7.2 Lt/Rt Center Downmix Level This  parameter  indicates  the  level  shift  applied  to  the  Center  channel  when  adding  to  the  left  and  right  outputs  a[...]

A Guide to Dolby Metadata Extended Bitstream Information Parameters Dolby ® DP570 Multichannel Audio Tool User’s Manual 103 D.7.5 Lo/Ro Surround Downmix Level This  parameter  indicates  the  level  shift  applied  to  the  Surround  channels  when  downmixing  to  an  Lo/Ro  output.  When  E[...]

104 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Metadata Combinations D.7.7 A/D Converter T ype This  parameter  allows  audio  that  has  passed  thr ough  a  particular  A/D  conversion  st age  to  be  marked  as  such,  so  that  a  decoder  m[...]

A Guide to Dolby Metadata Metadata Combinations Dolby ® DP570 Multichannel Audio Tool User’s Manual 105 Copyright Y es Y es Y es Y es Y es Original  Bitstream Y es Y es Y es Y es Y es Preferred  Stereo  Downmix Lt/Rt  Preferred Lt/Rt  Preferred N/A Lo/Ro  Preferred Lt/Rt  Preferred Lt/Rt  Center  Downmix  Lev el –[...]

106 Dolby ® DP570 Multichannel Audio Tool User’s Manual A Guide to Dolby Metadata Metadata Combinations[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 107 Appendix E Regulator y Notices and Fuse Information This  appendix  contains  important  safety  information   re quired  in  the  United  States,  Canada,  the  United  Kingdom  and  the  European  Union.  It  also  contains[...]

108 Dolby ® DP570 Multichannel Audio Tool User’s Manual Regulator y Notices and Fuse Information Regulatory Notices 13. On  some  equipment,  the  appliance  coupler  (pow er  cord)  is  used  as  the  mains  disconnect  device  and  should  be  readily  accessible  and  fre e  fr[...]

Regulator y Notices and Fuse Information Regulatory Notices Dolby ® DP570 Multichannel Audio Tool User’s Manual 109 Import ant – Safety Notice Great Brit ain This  unit  complies  with  the  safety  stand ard  EN60065.  The  unit  shall  not  be  exposed  to  dripping  or  sp lashing  and ?[...]

110 Dolby ® DP570 Multichannel Audio Tool User’s Manual Regulator y Notices and Fuse Information Regulatory Notices •D i e  Sicherungen  müssen  in  Ty p  und  Stromwert  mit  den  Angaben  auf  dem  Gerät  übereinstimmen. •D i e  Erdung  des  Gerätes  muß  über  eine  geerdet[...]

Regulator y Notices and Fuse Information Product End-of-Lif e Information Dolby ® DP570 Multichannel Audio Tool User’s Manual 111 utrustningen.  För  att  garantera  säkerheten  och  gardera  mot  ev entuell  elchock  eller  brandrisk,  måste  följande  observeras: • Kontrollera  att  spänni[...]

112 Dolby ® DP570 Multichannel Audio Tool User’s Manual Regulator y Notices and Fuse Information Fuse Information E.3.1 Main Fuse The  main  fuse  rating  is  T  1A  L  (1  amp,  250  V,  20  mm,  time ‐ lag,  low  breaking  capacity)  for  all  operating  voltages. To  inspect [...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 113 Index A/D  Converter  Type ................. .............. .............. . 104 Analog  Output  Master  Volume ......... .............. ...... 20 Applications Digital  Television . ................. .............. .............. .. 4 DVD  Mastering ............ .......[...]

114 Dolby ® DP570 Multichannel Audio Tool User’s Manual Unity  Gain  Mode ............... .............. ........... ...... 50 Lo/Ro Center  Downmix  Level ........ .............. ............ 102 Surround  Downmix  Level ...... .............. ......... 103 Lowpass  Filter......................... .............. ............[...]

Dolby ® DP570 Multichannel Audio Tool User’s Manual 115 Surround  3  dB  Attenuation ............. ............... ...... 100 Surround  Downmix  Level .... .............. ............ ........ 97 Surround  EX  Mode ..... .............. .............. .............. . 103 Surround  Phase  Shift ..... .............. ....[...]