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Dolby Laboratories DP570 Stereo System User Manual

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1. 72 B S CURE INSULE Snes 72 B 6 Metadata Input Ports cinesi Dee de eoa Le du Ve EEEE 72 7 Metadata Output o d dise enr Er guapa atc ea eae dade 72 B 8 Rear Panel Remote Port rei ee RR 73 B 9 40Base TPort Ethernet o Rr ete teen ees 73 10 Multichannel Analog Output enne 73 B 11 Stereo Mono Solo Analog 1 sse eene 74 B12 GPI OGonnector uere fH ea 74 Appendix C Front Panel Menus C 1 Top Level Setup 75 G2 Program Config oim oen re Ee tie tu eR tente ias 75 Metadata Params 1 76 C 4 Measure Control 1 nnn risen rents tensis rennes 76 C 5 Monitor Control 77 5 1 Dolby Pro Logic 1 Menu 10000 77 G6 User Presets SuUBMeNU teh te 78 Gr IO Gontrol S bmenl ite menit bia E 78 Router Config Submenu tti nre 79 C 7 2 GPI O Setup S bmen utendi de ER nd 79 C 8 Monitor Config 02
2. 80 C 8 1 Speaker Config nennen enn 80 C 8 2 Speaker Trims 81 G9 Status S 82 Appendix D A Guide to Dolby Metadata 0 1 Metadata 83 De Dialogue Levola a e a A A a 86 0 3 Dynamic Range Control ea aaea naa aoea aranana iaa 88 D 4 Dynamic Range Control 89 0 5 creep oe nn OE enm 90 D 6 Parameter Definitions 92 0 6 1 Parameters d iet eee t tes EE Do ei 93 D 7 Extended Bitstream Information 101 0 7 1 Preferred Stereo Downmix Mode 101 0 7 2 LURt Center Downmix Level nent essa asas 102 vi Dolby DP570 Multichannel Audio Tool User s Manual 0 7 3 Lt Rt Surround Downmix 102 0 7 4 Lo Ro Center Downmix 102 0 7 5 Lo Ro Surround Downmix 103 D 7 6 SUMMOUNG EX 103 0 7 7
3. 38 Shaft Decoder Signal 38 Shaft Decoder Signal Electrical Characteristics essen 39 Bass Management Options ssssssssssssssseses ener nnnm nene 63 Front Panel Remote Connector 71 Metadata Input Port 72 Metadata Output Port Pinot iiec reet Pe Exe ota e o eid tes 72 Rear Panel Remote Port 73 Multichannel Analog Output 1 sess enne nennen nennen 73 Stereo Mono Solo Analog Output Pinout 74 Profession and Consumer Metadata eene nennen 85 m Outputs from Different Equipment 91 Program Configuration 93 Channel Mode Definition and Data 2 2 2 4400 4 94 LFE Channel Settings ite eicere ped c dee E edicta dde eate v 95 itstream Mode Options nensis nennen erri nnn 95 RF Overmodulation Protection Setting eene 96 Center Downmix Level Settings and 97 Surround Downmix Level Settings and
4. 97 Dolby Surround Mode Settings and Definitions sese 97 Audio Production Information Settings and Definitions 2 2 98 Mixing Level Setting a re 1 intei n redes thi t 98 Room Type ecce ede tl Aedes E ree ee td esee De eras 98 Copyright Bit Settings tide Ernte ceed 99 Original Bitstream 06 4 100 entente nnns nnne enne nter enne 99 DG Filter Setting Suaa a det seite pera sd 99 Eowpass Filter Setting nr ue Oe aa eA ure ee a 100 EFE Lowpass Filters deti eer E eH Pte Pee d 100 Surround 3 dB Attenuation Settings 1 eene nes 100 Surround Phase Shift Setting sss enne 101 Preferred Stereo Downmix Mode 101 Lt Rt Center Downmix Level Setting 102 Lt Rt Surround Downmix Level 102 Lo Ro Center Downmix Level 102 Lo Ro Surround Downmix Level 05 sese 103 Sutro rnd EX ne lee eer ono di ERAT eee xr Lie iege Erde tents 103 A D Converter Type Setting enters sn nrtnr enis 104 Dolby DP570 Multichannel Audio Tool User s Manual xi List of Tables
5. 36 4 10 4 Using Different Preset Types to Audition sse 36 4 41 Using CURT Input M da ei torre Ee t oerte nnne i er s PR SEE HA AEVO 36 4 12 Channel Mapping and Input Routing nente 37 4 13 Using an External Shaft Encoder to Control Master 38 4 14 Emulator Bypass one e 39 4 15 Solonp t Mod ration et eo 39 4 16 Unity Gali Mode tertii eade nel eie op e Hep e Popup iat Her Re emesis 39 Settings eet ie dee dot Lt c 40 4 18 EV Rt FUNCOM E 40 AAO Dim FEUnctionss seid cu eee DH DUE tees 40 4 20 Master Trim and Master 40 4 21 Dolby Pro Logic Il aaea paaa nennen haas nens senten 41 Chapter 5 Using the DP570 in DVD Mastering 5 1 Gonnecting the DP5705 tbt utn UL EE 43 5 2 Typical Tasks s al ayaa il eee de den ter ee Ru e de 43 5 2 1 Setting the Dialogue 1 entere sententie nnns 44 5 2 2 Monitoring the Dialogue 44 5 2 3 Monitoring Downmixes esses nnne nnne 45 iv Dolby DP570 Multichannel Audio Tool User s Manual 5 3 Using the DP570 with Other Dolby
6. 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 80J England Telephone 44 1793 842100 Fax 44 1793 842101 DISCLAIMER OF WARRANTIES EQUIPMENT MANUFACTURED BY DOLBY LABORATORIES IS WARRANTED AGAINST DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF ONE YEAR FROM THE DATE OF PURCHASE THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES AND NOWARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OF NONINFRINGEMENT OF THIRD PARTY RIGHTS INCLUDING BUT NOT LIMITED TO COPYRIGHT AND PATENT RIGHTS LIMITATION OF LIABILITY ITIS UNDERSTOOD AND AGREED THAT DOLBY LABORATORIES LIABILITY WHETHER IN CONTRACT IN TORT UNDER ANY WARRANTY IN NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE COST OF REPAIR OR REPLACEMENT OF THE DEFECTIVE COMPONENTS OR ACCUSED INFRINGING DEVICES AND UNDER NO CIRCUMSTANCES SHALL DOLBY LABORATORIES BE LIABLE FOR INCIDENTAL SPECIAL DIRECT INDIRECT OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO DAMAGE TO SOFTWARE OR RECORDED AUDIO OR VISUAL MATERIAL COST OF DEFENSE OR LOSS OF USE REVENUE OR PROFIT EVEN IF DOLBY LABORATORIES OR ITS AGENTS HAVE BEEN ADVISED ORA
7. 45 5 4 Most Imiportant Metadata ute t n retento rrt ree ree ce ot EEG Vo ree EUR 45 Chapter 6 Using the DP570 in Live Remote Broadcast 6 1 Connecting the DP570 for Live Remote 47 62 TY CRI LEE ELE 48 6 2 1 Measuring and Setting Dialogue Level 49 6 2 2 Monitoring the Dialogue Level sse eene nennen nennen 50 0 2 3 Monitoring DOWNIE S 50 6 3 Using the DP570 with Other Dolby Equipment ssssseeseeseneneeneen nennen 50 6 4 Using Unity Gain Mode sivas aie err tei t ee C ae e 50 6 5 Monitoring Metadata 50 6 6 mportanice or Presets i edi eee Ce et obese D eee D e ER 51 Chapter 7 Using the DP570 in Postproduction 7 1 Connecting the DP570 5 nee trie Re ri dg e dL t p ets 53 PN Rjere penu 54 7 2 1 Measuring Dialogue 54 7 2 2 Monitoring the Dialogue Level 54 7 2 3 Monitoring Downmix aS o aain a Aa ara ASAA AEA nennen nnne eren 55 7 3 Using the DP570 with Other Dolby 55 7 4 Most Important Metadata aara aA A E E 56 Chapter 8 Using the DP570 in Master Control e
8. Legend Action Displays the previous menu item available on line 2 of the 1 display or 4 Displays the next menu item available on line 2 of the display Esc Displays the next higher menu level If you have changed the display from the current parameter value without pressing Enter returns display to current parameter value Enter Accepts the item on line 2 of the display and changes function status and menu display accordingly 3 1 3 Selecting a Menu The main function of the Setup key moves you from the default status menu to the Setup menu when Remote mode is not activated In Remote mode the Setup menu is unavailable from the front panel When the Shift button is pressed and lit the Setup button returns you from the Setup menu to the status menu 14 Dolby DP570 Multichannel Audio Tool User s Manual Controlling the DP570 Menu Structures 3 1 4 Other Shifted Functions When the Shift button is pressed and lit the other keys have the functions listed in Table 3 2 Table 3 2 Shifted Key Functions Shift Key Action dm Puts the unit in remote mode Deletes the current character from text fields 4 Opens the contrast control for the DP570 display letting you increase or decrease the contrast Inserts character at the cursor in text fields Enter Opens the main volume control for the optional analog outputs Esc Engages Bypass mode discussed in Emulator By
9. en rene 15 3 2 Men Structures elt dp ce ex dure aee 15 3 3 Moving Between 15 3 4 Monitoring Status Using the Front Panel sss eene nnns 15 3 4 1 Reading the Default Status 15 3 4 2 Viewing Status 5 enr intret 16 3 4 3 Heading the LED Indicators iet gen ttt eer gx tea n heel fe 16 Dolby DP570 Multichannel Audio Tool User s Manual iii 3 5 Using the Setup 18 3 5 1 5 in reve ae Eee ep t ac edid ive 18 3 5 2 Entering intem MM ENS 19 3 5 3 Exiting the Setup Menu inrer nnne aaa 19 3 5 4 Other 19 3 5 5 Contrast Adjustment for the Front Panel 00000 19 3 5 6 Analog Output Master 20 3 6 Using the GPI O Connector nnns nennen 20 3 6 1 Selecting GPI O rene 20 3 6 2 Assigning GPI O Functions to Specific Pins 22 Cha
10. i Recall Router V 01 RPRESET 1 Recall Router Q4 RPRESET 4 Router Config Router Out 1 Router Out 1 Audio In 1 Y Router Config Router Out 8 T Router Out 8 Audio In 1 Figure C 8 Router Config Submenu C 7 2 GPI O Setup Submenu Preset 1 Save Router 20 Save Router m M Preset 4 91 d Save Route Router Out 1 3 Audio In 8 Router Out 8 Audio In 8 Preset Name mp r ENTER Yes J System Settings Available Functions Preset Select 1 32 GPI Setup GPI Pin 23 GPI Pin 23 GPI Pin 23 Downmix Mode Full GPI Pin 23 gt GPI 1 Trigger 1 Polarity GPI 1 Function Stereo Mono Phant 3 Stereo Y Pro Logic Setup 23 Trigger 23 Polarity 23 Function Pro Logic Mode GPI Pin 36 Edge Negative Low Preset Smd EX Line Compression 23 Polarity GPI 23 Function RF Compression System Settings Positive High Preset 1 Program Select 1 8 GPO Setu Speaker Select Multi P Stereo Mono i i Speaker Mute L GPUS C SW Ls Rs Bs etup GPO Pin 4 GPO Pin 4 GPO Pin 4 4 gt GPO4Trigge GPO 4 Polarity
11. 20 24 6 Assigning see 22 RO RT 6 GPESetup 5 snot ederent egets 23 Connector Setup 23 Digital Audio 71 Selecting Functions 20 Digital Audio Output 71 Front Panel Remotes etie Zo Routes 37 GIO PE pspscoDu esuada m danda addio 5 Lt Rt Input 72 Installing Multichannel Analog Output 73 Hardware astantes 5 7 Rear Panel Remote 73 iue 7 9 Stereo Mono Solo Analog Output 74 Fuse eiae i 112 72 Introductions 1 4 Contrast Adjustment Front Panel Display 19 ocaeca tdt 16 Controlling utet tiber 13 24 Basic Status 17 Copyrnght Bit eiie tippen Rr 99 Channel ees 17 LFE Channel iei ete ets 94 eae rre beet 99 LFE Lowpass 100 Dialogue Level tette 86 87 Live Remote 2 47 51 Measuring and Setting 30 Connecting the DP570 tias 47 Digital Reference Level sss 67 Dialogue Level Measuring and Setting 49 IIR
12. LFE Lowpass Filter This parameter determines whether a 120 Hz eighth order lowpass filter is applied to the LFE channel input of a Dolby Digital encoder prior to encoding It is ignored if the LFE channel is disabled This parameter is not sent to the consumer decoder The filter removes frequencies above 120 Hz that would cause aliasing when decoded This filter should only be switched off if the audio to be encoded is known to have no signal above 120 Hz Table D 18 LFE Lowpass Filters LFE Lowpass Filter Setting Enabled Disabled Surround 3 dB Attenuation The Surround 3 dB Attenuation parameter determines whether the Surround channel s are attenuated 3 dB before encoding The attenuation actually takes place inside the Dolby Digital encoder It balances the signal levels between theatrical mixing rooms dubbing stages and consumer mixing rooms DVD or TV studios Consumer mixing rooms are calibrated so that all five main channels are at the same sound pressure level SPL To maintain compatibility with older film formats theatrical mixing rooms calibrate the SPL of the Surround channels 3 dB lower than the front channels The consequence is that signal levels on tape are 3 dB louder Therefore to convert from a theatrical calibration to a consumer mix it is necessary to reduce the Surround levels by 3 dB by enabling this parameter Table D 19 Surround 3 dB Attenuation Settings Surround 3 dB Atten
13. 40 Dialogue Level 50 edet tee 70 Downmix Monitoring see 50 Dolby Surround 97 Importance of Presets esee 51 Downmix Monitoring eee 30 Monitoring Metadata sse 50 DOWnMDAN 90 Other Dolby 50 DVD Mastering 43 46 Typical 48 Dolby DP570 Multichannel Audio Tool User s Manual 113 Unity Gain Mode eee 50 Lo Ro Center Downmix Level ses 102 Surround Downmix Level 103 Lowpass Filt r uiene teer meten 99 Lt Rt Center Downmix Level sss 102 Input Mode wisi ener 36 Surround Downmix Level 102 TARE GA iie aa 40 64 Main Fuse Checking sees 112 Master Control seen 57 60 Connecting the DP570 sess 57 Most Important 60 Other Dolby Equipment es 60 Typical Activities 58 Unity Gain Mode 60 Master Trim nuce eene er tie 40 67 Master Volume sess 40 67 Analog Output redegi 20 Measurements Infinite aan 31 Short Termii naea 32 Measuri
14. Pro Logic II PLII Panorama PLII Panorama PLII Panorama Disabled S Enabled Pro Logic PLII Dimension PLII Dimension us 1 2 3 3 2 1 Pro Logic 11 PL Il Center Width PLII Center Wdth 0 1 2 3 L R 8 2 1 Dolby DP570 Multichannel Audio Tool User s Manual 77 Front Panel Menus User Presets Submenu C 6 User Presets Submenu User Presets User Presets Recall Preset Save Preset Recall Preset Save Preset gt Save Preset 01X Preset Name Preset 01 Preset 32 EN E Enter Type Enter Type Enter Type All Authoring e Emulator TERN EN 2 27 Preset Save Preset 1 ENTER Yes ESC Noj lp to User Presets Save Preset menu Figure C 6 User Presets Submenu Control Submenu To main Setup Menu Control to Router Config Router Config Submenu Emulator Bypass Emulator Bypass Disabled Enabled to Setup Submenu Control Emulator Bypass Control GPI Setup Control GPO Setup Figure C 7 Control Submenu 78 Dolby DP570 Multichannel Audio Tool User s Manual Front Panel Menus C 7 1 Router Config Submenu Control Submenu Router Config To main 4 Router Presets Control Menu Router Presets Recall Router Router Presets Save Router
15. B 12 GPI O Connector For details of the GPI O connector see Assigning GPI O Functions to Specific Pins on page 22 74 Dolby DP570 Multichannel Audio Tool User s Manual Front Panel 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 in Status Menu on page 82 Use the navigation buttons described and illustrated in Using the Front Panel Buttons on page 13 to navigate these menus C 1 Top Level Setup Menu DP570 Unit Setup Program Config Program Config Y 1 Program Desc DP570 Unit Setup to Metadata Params Metadata Params Submenu to Measure DP570 Unit Setup Measure Control Control Submenu DP570 Unit Setup Monitor Control DP570 Unit Setup User Presets DP570 Unit Setup Control DP570 Unit Setup Monitor Config to Monitor Control Submenu to User Presets Submenu to Control Submenu to Monitor Config Submenu DP570 Unit Setup System Settings System Settings System Settings System Settings System Settings Sticky Settings gt Baud Rate Unit Name ELS Unit Address J Figure C 1 Top Level Setup Menu C 2 Program Config This menu contains all the program configurations listed in Program Configuration Settings on page 93 Choose a program configuration by pressing the down arrow until the desired configuration appears on the secon
16. 5 Se MOMUING MIS 6 2 3 2 Making Input CorinectiOns et ect rer neret Et cr dc Ei C ERE YE P Tree De etr etc rad 6 2 3 3 Making Output 6 2 3 4 Making the V Ref nsn nennt etri nnn nnn 6 2 3 5 Making a Power nennen enne 7 2 4 Installing the Remote Software 7 2 4 1 System 4 sinn nnne 7 2 4 2 Installing the 7 2 4 3 Hardware 8 2 4 4 Configuring the Unit for Remote 10 00 8 2 4 5 Beginning and Ending Remote Operation sess 8 2 4 6 Starting the Remote 2 9 2 4 7 Configure the Setup Monitor 9 2 5 Selecting a Program Configuration 1 nnne nnne nenne 10 Chapter 3 Controlling the DP570 3 1 Using the Front Panel Buttons t m penetret e a aba eR Rana n 13 3 1 1 Main and Shifted Functions of the 14 3 1 2 Navigating the Front Panel 14 2 31 93 Selecting Menu Leo rere todo te e eti ae aii oder eee 14 3 1 4 Other Shifted
17. 44 Downmix Monitoring 45 Typical Live Remote Transmission Setup 48 Typical Downmix 49 Dialogue Level e Fate ee iter vies ettet esr tse aen 49 Typical Postproduction eene nennen entrer nnns nnne nn 53 Dialogue Level Controls eene nennen nnns nnn tensis 54 Typical Options for Monitoring Downmixes 0 0 55 Typical Master Control 58 Typical Downmix Options rsin i neal yen eee indeed aces 59 Dialogue Level Controls 59 Set p BUON ieo TR 61 Monitor Setup Tab ec 62 Bass Management 64 Et Fit Gali FUNCHON 64 Pro Logic inre dae 65 Speaker Delay nnns 66 Digital Reference Level nennen nennen 67 Multichannel Trims
18. x DC Filter x Dolby DP570 Multichannel Audio Tool User s Manual 85 A Guide to Dolby Metadata Dialogue Level Table 0 1 Profession and Consumer Metadata Types Figure continued Metadata Parameter Professional Consumer Lowpass Filter x LFE Lowpass Filter x Surround 3 dB Attenuation x Surround Phase Shift x a Extended Bitstream Information parameters are shown in italics Special Parameters 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 bitstreams carry timecode information in hours minutes seconds frames format Pitch Shift The Pitch Shift parameter can be generated automatically by a Dolby E decoder to control the Dolby Model 585 Time Scaling Processor If the input to the Dolby E decoder is not at normal play speed as with varispeed or program play then the Pitch Shift Code parameter indicates the amount of audio pitch shifting required to restore the original program pitch D 2 Dialogue Level Dialogue Level also known as dialogue normalization or dialnorm is perhaps the single most important metadata parameter The Dialogue Level setting represents the long term A weighted average level of dialogue within a presentation Leq A This level can be quantified with the Dolby Model LM100 Broadcast Loudness Meter When received at the consumer s Dolby Digit
19. Table D 27 A D Converter Type Setting A D Converter Type Setting Standard HDCD D 8 Metadata Combinations Table D 28 provides examples of combinations of parameters that could be used as a preset Note These parameter settings are provided as examples to demonstrate that different settings can be saved named and brought up as needed for quick use in different situations The settings are not recommendations but could be used as a starting point from which to create your own metadata values Table D 28 Metadata Combinations Action Film Local News Live Sporting Musi Parameter 5 1 Drama Lt Rt Mono usic 5 0 Events 5 0 Program Configuration 5 1 2 or 5 1 5 1 2 4 2 4x2 3x2 5 1 2 0 5 1 5 1 2 05 1 2 8 1 1 Program Description Film Drama News Music Sports Dialogue Level 27 dB 27 dB 20 dB 15 dB 18 dB Channel Mode 3 2L 2 0 1 0 3 2 3 2 LFE Channel Enabled N A N A Disabled Disabled Bitstream Mode Complete Main Complete Main Complete Complete Complete Main Main Main Line Mode Pro Film Standard Film Light Speech Music Film Standard Standard RF Mode Pro Film Standard Film Light Speech Music Film Standard Standard RF Ovrmd Protect Disabled Disabled Disabled Disabled Disabled Center Dwnmix Lev 0 707 dB N A N A 0 707 dB 0 707 dB 3 dB 3 dB 3 dB Srnd Dwnmix Lev 0
20. Click a button to generate the appropriate kind of test noise Click Pink if your bass management setting is None Otherwise click Filtered The test noise buttons are shown in Figure A 2 directly under the Analog Outputs check box When activated the test noise cycles around the speakers in order Left Center Right Right Surround Back Surround Right Back Surround Left Left Surround and Subwoofer remaining two seconds at each output before moving onto the next The test noise feature is intelligent When you begin an individual speaker trim adjustment the test noise remains at that speaker until you complete the adjustment and move to another speaker allowing you to adjust the SPL according to the following procedure A 3 6 Increasing the System Volume After turning on the noise raise the master Volume slider slowly until meter readings reach your target SPL When the system is properly calibrated this target SPL will register 0 on the master Volume scale If it does not adjust the Master Trim slider until the target SPL measures 0 on the master Volume slider You are now ready to begin making fine adjustments 68 Dolby DP570 Multichannel Audio Tool User s Manual Configuring a Monitor System Calibrating Speaker Playback Levels A 3 7 Measuring SPL To accurately measure SPL 1 Sit in the reference listening position Set the SPL meter to C weighting and Slow response 2 Facing the front speakers hold the SPL
21. GPO 4 Function DATURUS Ref Level H 1 Leq A Pause 4 4 Leq A Reset GPO Setup GPO 4 Trigger D GPO 4 Polarity 6 4 Function Edo Dues GPO Pin 19 Level Negative Low Input V _ M Router Delay Lt Rt Input GPO 4 Ed Figure 9 GPI O Setup Submenu Dolby DP570 Multichannel Audio Tool User s Manual Front Panel Menus Monitor Config Submenu C 8 Monitor Config Submenu Monitor Config Speaker Config gt to Speaker Config Submenu Monitor Config Speaker Delays PUENTE Speaker Delays b Pro Logic Dalay Speaker Delays le Center Delay 2 Delay 45 ms 3 ms Monitor Control Speaker Trims I4 to Speaker Trims Submenu Monitor Control Digital Ref Digital Ref Digital Ref 24dBFS P Monitor Control Dim Gain 8dBFS V J 8 kr cn Dim Gain 698 30dB E Monitor Control Lt Rt Gain gt Lt Rt Gain lt Lt Rt Gain 20 dB 0 dB Figure C 10 Monitor Config Menu 8 1 Speaker Config Submenu gt Bass Management Speaker Config Bass Management 4 Bass Management gt Bass Management None J Center gt SW 2 Speaker Config SWXoverFreq gt SW Xover Freq SWXoverFreq SW Xover Freq 80 HZ 120HZ 100 HZ C
22. Metadata is carried in the Dolby Digital or Dolby E bitstream describing the encoded audio and conveying information that precisely controls downstream encoders and decoders In normal operation the encoded audio and metadata are carried together as a data stream on two regular digital audio channels AES3 AES EBU or S PDIF Metadata can also be carried as a serial data stream between Dolby E and or Dolby Digital equipment Metadata allows content providers unprecedented control over how original program material is reproduced in the home Dolby Digital is a transmission bitstream sometimes called an emission bitstream intended for delivery to the consumer at home through a medium such as DTV or DVD It consists of a single encoded program of up to six channels of audio described by one metadata stream The consumer s Dolby Digital decoder reproduces the program audio according to the metadata parameters set by the program creator and according to settings for speaker configuration bass management and dynamic range that are chosen by the consumer to match his specific home theater equipment and environmental conditions Dolby Eis a distribution bitstream capable of carrying up to eight channels of encoded audio and metadata The number of programs ranges from one single program Program Config 5 1 to eight individual programs on a single Dolby E stream Program Config 8 x 1 Each program is discrete with its own metadata in the Dolby E
23. Shift applied Example 31 21 10 dB Setting the Dialogue Level parameter is an essential service to the listener For your listeners setting this level properly means The volume level is consistent with other programs e The DRC profiles you make available to them work as you intend Once dialogue level is set you can set up DRC profiles to further benefit the consumer Dolby DP570 Multichannel Audio Tool User s Manual 87 Guide to Dolby Metadata Dynamic Range Control D 3 Dynamic Range Control Different home listening environments present wide range of requirements for dynamic range Rather than simply compressing the audio program at the transmission source to work wellin the poorest listening environments Dolby Digital encoders calculate and send Dynamic Range Control DRC metadata with the signal This metadata can then be applied to the signal by the decoder to reduce the signal s dynamic range Through the proper setting of DRC profiles during the mastering process the content producer can provide the best possible presentation of program content in virtually any listening environment regardless of the quality of the equipment number of channels or ambient noise level in the consumer s home Many Dolby Digital decoders offer the consumer the option of defeating the Dynamic Range Control metadata but some do not Decoders with six discrete channel outputs full 5 1 channel capability typic
24. You cannot use both the front panel and the remote application at the same time However you can use GPI O simultaneously with the either the remote application direct control GPI O Interface Cat No 549 Laptop PC Remote SW DP571 or DP569 PCM Inputs Figure 3 1 DP570 Control Options Most users will control their units with the remote software and most of this manual focuses on this approach This chapter gives summary instructions for controlling the unit from the unit front panel and via the GPI O connector 31 Using the Front Panel Buttons The eight buttons shown in Figure 3 2 let you navigate the menus and select functional parameters Dolby DP570 Multichannel Audio Tool User s Manual 13 Controlling the DP570 Using the Front Panel Buttons Remote Delete Insert Status Contrast Volume Bypass Figure 3 2 Front Panel Buttons 3 1 4 Main and Shifted Functions of the Buttons Most of the buttons have two functions a main function and a shifted function The main function indicated on the button itself is active when the Shift button is not lit The shifted function is active when the Shift button is pressed and lit This function is indicated on the panel above or below the button as shown in Figure 3 2 3 1 2 Navigating the Front Panel Menus To navigate the menus use the main function of the buttons described inTable 3 1 Table 3 1 Front Panel Navigation Buttons
25. e Nulleiter blau e Erde gr n gelb Norme Di Sicurezza Importante Italia Questa apparecchiatura stata costruita in accordo alle norme di sicurezza EN60065 prodotto non deve essere sottoposto a schizzi spruzzi e gocciolamenti e nessun tipo di oggetto riempito con liquidi come ad esempio tazze di caffe deve essere appoggiato sul dispositivo Per una perfetta sicurezza ed al fine di evitare eventuali rischi di scossa elettrica o d incendio vanno osservate le seguenti misure di sicurezza e Assicurarsi che il selettore di cambio tensione sia posizionato sul valore corretto e Assicurarsi che la portata ed il tipo di fusibili siano quelli prescritti dalla casa costruttrice e L apparecchiatura deve avere un collegamento di messa a terra ben eseguito anche la connessione rete deve avere un collegamento a terra e Il di alimentazione a corredo dell apparecchiatura deve essere collegato come segue Filo tensione Marrone e Neutro Blu e Massa Verde Giallo Aviso Importante de Seguridad Espana Esta unidad cumple con la norma de seguridad EN60065 La unidad no debe ser expuesta a goteos o salpicaduras y no deben colocarse sobre el equipo recipientes con liquidos como tazas de cafe Para asegurarse un funcionamiento seguro y prevenir cualquier posible peligro de descarga o riesgo de incendio se han de observar las siguientes precauciones e Aseg rese que el selector de tensi n est ajustado la te
26. 4 Measure Method Measure Method Short Term Leq A J Infinite Leq A J Figure C 3 Measure Control Submenu 76 Dolby DP570 Multichannel Audio Tool User s Manual Front Panel Menus Monitor Control Submenu C 5 Monitor Control Submenu Figure C 4 Monitor Control Submenu C 5 1 Dolby Pro Logic Menu Submenu Monitor Control Program Select N gt Program Select Program 1 5 J 1 N Monitor Control Lt Rt Input Lt Rt Input Lt Rt Input gt Disabled lt q Enabled J Monitor Control Extended BSI Extended BSI A Extended BSI Disabled i C Enabled J Monitor Control Pro Logic Mode N Pro Logic Mode N Pro Logic Mode Pro Logic aa Pro Logic Il J to Pro Logic II Submenu Monitor Control LFE Monitor Mode i LFE Monitor Mode 6 LFE Monitor Mode LFE Monitor Mode gt Auto Select J C On J us Off J 1 4 1 Monitor Control Metadata Capture gt di Metadata Capture E Metadata Capture Disabled a Enabled J Monitor Control Unity Gain Mode 4 Unity Gain Mode Unity Gain Mode i Enabled 27 Disabled Figure C 5 Pro Logic II Submenu am D Pro Logic II PLII Mode PLII Mode PLII Mode PLII Mode PLII Mode Pro Logic i L
27. The Solo input is available only by driving the Solo Control line on the GPI O port The Solo Control line pin 6 is level triggered and is active in the high state The status of the Solo input displays on the front panel Solo LED and is indicated on the Solo Tally line pin 5 on the GPI O port 4 16 Unity Gain Mode Unity Gain mode defeats the audible effects of dialogue normalization while allowing the dialnorm value to be used in choosing dynamic range control settings It is valuable when the emulator outputs of the DP570 are returned to the console for use as monitor inputs 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 on the left side near the bottom Figure 4 8 shows a detail of the Unity Gain Mode box on the Setup window Unity Gain Made Extended BSI Enable w Sticky Settings Enable Figure 4 8 Unity Gain Mode Box Dolby DP570 Multichannel Audio Tool User s Manual 39 Using the DP570 Features Sticky Settings 4 17 Sticky Settings When you enable Sticky Settings your last settings for dynamic range control profiles downmix speaker selection LFE monitor master volume and emulator bypass for your listening environment remain with each program when you leave one program to monitor another This allows you to switch to another program monitor that program then return to the original program
28. interval between 0 and 10 seconds the next between 1 and 11 seconds next between 2 and 12 seconds and so forth Figure 4 5 illustrates these measurements E ooo OF ao so See ES ume er uox Qr a 5 TTT E i otc o E c o S T gt 5 o x 8 5 11 gt Figure 4 5 Short term Measurements Since the short term measurement considers only the previous ten seconds of program material the measured value can be much more dynamic than the measured value in Infinite mode Note In programming that includes heavy dynamics processing and therefore a smaller dynamic range the shortterm may not be considerably more dynamic than the infinite The benefit of short term measurement is that it allows the operator to see short term variations in loudness level within a program Many skilled audio operators prefer to use energy average of two or more quantities expressed on a decibel scale differs from the arithmetic average of the quantities The DP570 Pause feature allows the user to properly average measurements in dB across multiple sections of programming 32 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Measuring and Setting the Dialogue Level the short term measurement as they find the information on near term dynamics to be ver
29. 1 2 3 4 3 4 udio 86 Inputs Video Ref ideo 5 6 DP563 7 8 7 8 Main Out r L R 1 2 Digital Digital Through 3 4 _Ls Rs gt 5 6 Figure 7 1 Typical Postproduction Setup Dolby DP570 Multichannel Audio Tool User s Manual 53 Using the DP570 Postproduction Typical Activities 7 2 Typical Activities The DP570 is used in the monitor chain to emulate consumer s listening environment 7 2 1 Measuring Dialogue Level As the mix is nearing completion use the dialogue level indicators during a representative period of speech to determine and select the Dialogue Level value for the program The measured value from program material appears in yellow numbers 26 in Figure 7 2 The Dialogue Level value set in the software appears in green numbers 27 in Figure 7 2 Dialogue Level Set 00 00 08 Figure 7 2 Dialogue Level Controls If it is necessary to change the value in the software press the Accept button The system will transfer the number appearing in the measured value window to the dialnorm value window and set the parameter automatically In most cases selecting and measuring a representative period of speech within the program will serve as a good example of the overall dialogue level throughout the program provided good mixing practices are observed In some cases documentaries location sound and so on it may be diffic
30. 3 Overview Main Applications The Cat No 548 Analog Option Card provides an analog monitor section and some additional features to ease interfacing to existing mixing and monitoring environments This optional analog monitor section provides features including multiple speaker configuration outputs a master volume control speaker trim controls and an input for a console solo bus 1 4 Main Applications The DP570 can be successfully deployed wherever there is a need to monitor the quality of digital audio and to review existing metadata It is currently most common in two applications e DVD mastering e Creation and broadcast of DTV content 1 4 1 Use in DVD Mastering A DVD author is typically preparing mixed audio for writing to the DVD generating metadata verifying levels and auditioning downmixes This process is described in detail in Using the DP570 in DVD Mastering on page 43 1 4 2 Use in Digital Television Here s an example of the process flow in DTV In a broadcast truck parked outside a football stadium the program mixer chooses the appropriate metadata for the audio program being created The resulting audio program together with metadata is encoded as Dolby E data and sent to the television station via fiber microwave or other transmission link This process is discussed in detail in Using the DP570 in Live Remote Broadcast on page 47 At the receiving end of this transmission the Dolby E stream is decod
31. 5 and described in Table 3 4 show channel activity for either input or output depending on the state of the Input Activity button By default the button is unlit and the indicators show output activity When you press the button it lights up and the indicators show input activity AL 22 242 5 meanings of some indications changes slightly between input activity and lt output activity Before acting an indication note which direction the unit is displaying Dolby DP570 Multichannel Audio Tool User s Manual 17 Controlling the DP570 Using the Setup Menu Channel Activity L C LFE Ls Rs Bs SW Output gt 1 2 3 4 5 6 7 8 Lt Rt Figure 3 5 Channel Activity LED Indicators Channel Activity LED indicator meanings are detailed in Table 3 4 Table 3 4 Channel Activity LED Indications LED Display Signal Status YELLOW Peak signal level is less than 60 or is signal present GREEN Peak signal level is greater than 60 dBFS and less than 0 1 a signal is present and not clipping RED Peak signal levelis greater than 0 1 a signal is clipping intervention is required Blinking Input Channel enabled but not locked the channel is present in YELLOW the selected program configuration but there is no clock signal present at the input Output Not used Off Input Channel is not used in th
32. 5 1 channel program with signals at digital full scale on all channels being played through a stereo downmixed line level output Without some form of attenuation or limiting the output signal would obviously clip Correct setting of the Dialogue Level and DRC profiles normally prevents clipping and unnecessary application of automatic overload protection Note DRC profile settings are dependent on an accurate dialogue level setting Improper setting of the dialogue level parameter may result in excessive and audible application of overload protection limiting D 5 Downmixing Downmixing is a function of Dolby Digital that allows a multichannel program to be reproduced over fewer speaker channels than the number for which the program is optimally intended Simply put downmixing allows consumers to enjoy a DVD or digital television broadcast without requiring a full blown home theater setup 90 Dolby DP570 Multichannel Audio Tool User s Manual A Guide to Dolby Metadata Downmixing As with stereo mixing where the mix is monitored in mono on occasion to maintain compatibility multichannel audio mixing requires the engineer to reference the mix to fewer speaker channels to ensure compatibility in downmixing situations In this way Dolby Digital using the metadata parameters that control downmixing is an equal opportunity technology in that every consumer who receives the Dolby Digital data stream can enjoy the best audio
33. 69 Real time Analyzer RTA 70 Button AE O E ES 70 Top Level Setup sentent nnns eintreten 75 Metadata Parameters 76 Measure Control 76 Dolby DP570 Multichannel Audio Tool User s Manual viii List of Figures Figure C 4 Monitor Control 7 77 Figure C 5 Pro Logic Il Submenu e ga 77 Figure C 6 User Presets 78 Figure C 7 O Control Submenu enne nnne enhn 78 Figure C 8 Router Config 79 Figure C 9 GPIO Setup Submoerus iic reete eter Pe Dern oret cte tope a LAT 79 Figure C 10 Monitor Config 80 Figure C 11 Speaker Config 80 Figure 12 Speaker Trims 81 aT CL EMERICUS 82 Figure D 1 Metadata Flow from Production to 84 0 2 DR Profile tree tede eet tri sant e RR thi eu ein 89 Figure E 1 Fuse Replacement ee venue te eig sla 112 Dolby DP570 Multichannel Audio Tool User s Manual ix List of Figures x Dolby DP570 Multichannel Audio Tool User s Manual Table 3 1 Table 3 2 Ta
34. A D Converter eaaa iaaa aiaa as 104 0 8 Metadata Combinations 104 Appendix E Regulatory Notices and Fuse Information Regulatory NOCES iracurri ee inat E EE uu Ira ase reds 107 USA Leechers deuten one er eno sex MS es sor eoe Med 107 E 1 2 Ganada ia viet rte te eer cA D POTE adt 108 Ed UY Kea cT DEREN 108 zB C PP 108 E 2 Product End of Life ens 111 E3 Fuse 5e berto ete dere ea e Pe A E e 111 BS le Mall EUSGn i setti bin ACIE S DP 112 E 3 2 Internal oed niue rto dae e 112 DERG 113 Dolby DP570 Multichannel Audio Tool User s Manual vii Figure 1 1 Figure 2 1 Figure 2 2 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Figure 4 1 Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 4 7 Figure 4 8 Figure 4 9 Figure 4 10 Figure 4 11 Figure 5 1 Figure 5 2 Figure 5 3 Figure 6 1 Figure 6 2 Figure 6 3 Figure 7 1 Figure 7 2 Figure 7 3 Figure 8 1 Figure 8 2 Figure 8 3 Figure A 1 Figure A 2 Figure A 3 Figure A 4 Figure A 5 Figure A 6 Figure A 7 Figure A 8 Figure A 9 Figure A 10 Figure C 1 Figure C 2
35. C to 45 C They use natural convection cooling and therefore should not be mounted directly above any heat generating equipment The DP570 has vent holes in the front and back of the unit and can be placed directly above or below other rack mounted gear 2 3 2 Making Input Connections Connect the mandatory multichannel PCM signals to the digital jacks Use care to attach the input cables to the proper connector to avoid inadvertently moving channels For a discussion of the connector types used on the DP570 see Connector Specifications on page 71 Note The DP570 will not operate without a valid sample clock signal present at the channel 1 2 input connection You may also connect a Dolby Surround encoded stereo PCM mix to either of the Lt Rt Inputs jacks Use the second jack either to pass the signal to another device or to terminate the connection with a 750 impedance 2 3 3 Making Output Connections There are two sets of digital audio outputs on the rear panel One is the output from the router and the other is from the emulator For a discussion of the connector types used on the DP570 see Connector Specifications on page 71 Router Output Use the Router Outputs for the main digital signal output regardless of whether you are reassigning signals to different channels For information on how to reassign input signals to different channels see Channel Mapping and Input Routing on page 37 Emulator Output These o
36. Dolby DP570 Multichannel Audio Tool User s Manual Chapter 7 Using the DP570 in Postproduction The DP570 can be used in a variety of postproduction settings We discuss one example The instructions in this section allow you to use the DP570 to respond quickly with necessary changes and improvements to the mix 7 1 Connecting the DP570 In the example shown in Figure 7 1 the mixing console is used to create a 5 1 channel mix which is then fed to the DP570 The user selects dynamic range control and downmix parameters and auditions them in various monitor modes before starting to record the DP571 output For playback of the recorded tape the VTR audio outputs are fed to a DP572 Afterward the DP572 outputs are rerouted to the DP570 for monitoring via a console or monitor box This basic setup is effective for creation and editing of Dolby E recorded media Mixing Console D P570 5 1 Channel Monitor I 1 2 A 5 Analog 3 4 gt d Outputs 56 1 2 2 3 4 Digital 56 gt 78 gt 0 571 DP572 Metadata Out 5 Video Ref VTR I Video Ref Router Outputs PCM Dela PCM igi LURt y PCM Delay Digital gt gt Input FEM 2 9 Input Audio Outputs 1 2 3 4
37. Figure 4 10 Figure 4 11 Master Trim Control Master Volume Control 4 21 Dolby Pro Logic Support DP570 supports four Pro Logic II modes Movie Music Pro Logic and Matrix Panorama Dimension and Center Width offer a variety of settings activated in Music mode Movie mode is the standard setting for programs with video This decoding is based on the original Pro Logic decoding scheme but with the single Surround channel separated into Left and Right Surround channels Note Movie is the recommended mode for professional monitoring The wide range of possible choices in Music mode make it too complex and unpredictable to emulate Music mode is the most versatile feature of Pro Logic II The settings on the Panorama Dimension and Center Width menus can help a consumer make a stereo Lo Ro recording into one that takes advantage of a multichannel listening environment Particularly attractive for automotive entertainment systems this can be used in home theaters as well Pro Logic is the Pro Logic II system reproduction of the original Pro Logic decoding system Because consumer decoders now offer Pro Logic II as the default Dolby Surround decoding system this emulation mode is available to reproduce the original Pro Logic decoding if the consumer wishes to hear it This option is not available on all consumer decoders made with Pro Logic II Matrix is primarily for radio reception in cars It is essentially th
38. High level signal cut compression scaling is allowed when not downmixing e The normalized dialogue level is reproduced from the decoder at a constant loudness level of 31 dBFS Leq A assuming the Dialogue Level parameter is set correctly Line level or power amplified outputs from two channel set top decoders two channel digital televisions 5 1 channel digital televisions Dolby Digital A V surround decoders and outboard Dolby Digital adapters use Line mode Consumer control of the dynamic range is limited when downmixing Products with stereo or mono outputs do not usually allow consumer scaling of Line mode This is because these 88 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Dynamic Range Control Profiles devices are usually downmixing for example when receiving a 5 1 channel signal However in these products the consumer may have a choice between Line mode and RF mode RF Mode In RF mode high and low level compression scaling is not allowed When RF mode is active that compression profile is always fully applied RF mode is designed for products such as set top boxes that generate a downmixed signal for connection to the RF antenna input of a television set however it is also useful in situations where heavy DRC is required for example when small PC speakers are used for DVD playback In RF mode the overall program level is raised 11 dB this results in dialogue being
39. LFE Filter On Off Off Off Surround Phase Shift On On Off Off Surround 3 dB On On Off Off Attenuation Line Mode Compression Film Light Film Light Film Standard Film Standard RF Mode Compression Film Standard Film Standard Film Standard Speech RF Overmodulation Off Off Off On Protection Bitstream Mode Complete main Complete main Complete main Complete main Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Table 4 1 Metadata Parameter Defaults Generating and Adjusting Metadata Metadata Parameter PEET a Center Mix Level 3 3 3 N A Surround Mix Level 3 3 3 N A Dolby Surround Mode Off Off On N A Copyright Bit Yes Yes Yes Yes Original Bitstream Yes Yes Yes Yes Audio Production Info No No No No Mix Level 85 dB SPL 85 dB SPL 85 dB SPL 85 dB SPL Room Type Not Indicated Not Indicated Not Indicated Not Indicated Preferred Stereo Lt Rt Lt Rt Not Indicated Not Indicated Downmix Lt Rt Center Mix Level 3 3 N A N A LURt Surround Mix Level 3 3 N A N A Lo Ro Center Mix Level 3 3 N A N A Lo Ro Surround Mix 3 3 N A N A Level Dolby Surround EX Mode Not Indicated N A N A N A Converter Type Standard Standard Standard Standard Data Rate Not Indicated Not Indicated Not Indicated Not Indicated You can manually modify most of these values on the metadata ta
40. Multichannel Audio Tool User s Manual Chapter 8 Using the DP570 Master Control Dolby E encoding is commonly used to distribute multichannel audio from a network center to multiple affiliate stations usually via satellite or optical fiber The DP570 provides quick and accurate emulation of multiple listening environments during Dolby E encoding 8 1 Connecting the DP570 Figure 8 1 shows a typical setup for this application where master control requirements dictate that audio switching occurs discretely and that the audio must be encoded into a Dolby E signal prior to transmission The source audio is a Dolby E stream either played out from a VTR or server or received live through an IRD The stream is processed by the DP572 providing discrete signals to the master control switcher inputs The switcher output is sent to the DP571 for Dolby E encoding and also to the DP570 for monitoring and metadata modification Note In this example the metadata output from the DP572 decoder is passed through the master control switcher via a serial layer The air serial outputis connected to the DP571 and the preview outputs of the master control switcher to the DP570 More than two metadata streams can be switched if necessary The DP571 output then gets multiplexed with video in the MPEG transport stream and sent for distribution Dolby DP570 Multichannel Audio Tool User s Manual 57 Using the DP570 in Master Control Typ
41. and user friendly interface simplifies multichannel audio production and mastering Figure 1 1 shows the audio path of the DP570 broken into major functional blocks Features that control the operation of a block are connected to it by a dotted line Digital audio input on the DP570 is via four female BNC connectors allowing a total of eight channels The emulator section of the DP570 like the DP571 requires the input channel assignment to conform to a fixed SMPTE 320M definition based upon the program configuration selected Since previously recorded material may arrive in formats that do not match the chosen program configuration the DP570 provides the ability to reroute the input channels to match the expected configuration allowing other equipment to be sent the correct channel assignment The emulator section provides the bulk of the audio processing including application of metadata downmixing and Pro Logic decoding possible listening options allowed by consumer decoders are provided in the emulator from high end home theaters to mono TV sets Note that the inputs to the emulator section may be multiple unrelated channels but the outputs are referred to as speaker channels and represent only the active program the program currently being worked on or monitored Once the input channel configuration has been set the selected active program appears in the appropriate speaker channels irrespective of the program s appearance on t
42. appears under the first character in the string Enter text by using the navigation buttons as described in Table 3 5 Table 3 5 Text Entry Commands Command Result Moves the cursor to the left or right t Displays the previous character in the character set 4 Displays the next character in the character set Enter Saves the text on line 2 temporarily pending confirmation Changes the display to a confirmation dialogue Esc Returns text on line 2 to initial display If text is unmodified displays the next higher menu level Insert Places a blank space at the cursor location If there are Shift gt characters to the right of the cursor moves all characters one space to the right Delete Deletes the character at the cursor location shit When you press Enter the system displays a confirmation message Pressing Enter again completes your text entry Pressing Esc cancels the text entry 3 5 3 Exiting the Setup Menu To return to the status menu press Shift then Setup 3 5 4 Other Commands You can adjust the front panel display contrast and the master volume for the optional analog outputs using shifted functions on the front panel buttons 3 5 5 Contrast Adjustment for the Front Panel Display Press Shift 4 to access the contrast control Use the arrow buttons to adjust the contrast Press Enter to accept the changed value or Esc to return to the previous
43. in the unit are not blocked or covered Warning Troubleshooting must be performed by a trained technician Do not attempt to service this equipment unless you are qualified to do so 108 Dolby DP570 Multichannel Audio Tool User s Manual Regulatory Notices and Fuse Information Regulatory Notices Warning Check that the correct fuses have been installed To reduce the risk of fire replace only with fuses of the same type and rating See Fuse Information on page 111 for more information on fuses Important Safety Notice Great Britain This unit complies with the safety standard EN60065 The unit shall not be exposed to dripping or splashing and no objects filled with liquids such as coffee cups shall be placed on the equipment To ensure safe operation and to guard against potential shock hazard or risk of fire the following must be observed e Ensure that your mains supply is in the correct range for the input power requirement of the unit Ensure fuses fitted are the correct rating and type as marked on the unit e The unit must be earthed by connecting to a correctly wired and earthed power outlet The power cord supplied with this unit must be wired as follows e Live Brown e Neutral Blue e Earth Green Yellow Important Note de Securit France Ce mat riel est conforme la norme EN60065 Ne pas exposer cet appareil aux claboussures ou aux gouttes de liquide Ne pas poser d ob
44. input High polarity Level triggered Active state Engaged 7 User defined output 25 User defined input 8 User defined output 26 User defined input 9 User defined output 27 User defined input 10 User defined output 28 User defined input 11 User defined output 29 User defined input 12 User defined output 30 User defined input 13 User defined output 31 User defined input 14 User defined output 32 User defined input 15 User defined output 33 User defined input 16 User defined output 34 User defined input 17 User defined output 35 User defined input 18 User defined output 36 User defined input 19 User defined output 37 Digital ground a Available only in units with the Cat No 548 Analog Option Card GPO Setup Output pins 4 and 7 19 in Figure 3 7 and Table are user defined To define a function for an output pin enter the Setup menu in the System Settings section of the Setup menu use the arrow buttons to select the pin number you wish to define and press Enter Three submenus are available Trigger Polarity and Function Trigger defines the type of signal the pin produces and can be set to Level or Edge If set to Level the pin produces a constant level if set to Edge the pin produces a pulse of about 200 ms duration 185 ms minimum Polarity can be set to Positive High or Negative Low Edge triggered signals are either positive or negative Level triggered signals are either high or low The Funct ion menu lets
45. is selected Full Stereo Mono Phant 3 Stereo Dynamic Range Either Either Enabled Indicates which compression mode is Control Mode selected Line RF Custom Reference Level Either Level 0 dB Indicates Master Volume 0 dB a Not available in units without the Cat No 548 Analog Option Card 3 6 2 Assigning GPI O Functions to Specific Pins The GPI O port is a female 37 pin D connector See Figure 3 7 to identify pin numbers Figure 3 7 GPI O Pin Numbers Table 3 8 shows the pins that are available for GPO and GPI functions Table 3 8 GPI O Pins Available Pin Function Pin Function 1 5 V 150 mA 2 Fault output 20 Volume Control Shaft Encoder Low polarity A input Level triggered High polarity Active state Fault Edge triggered 3 Error output 21 Volume Control Shaft Encoder High polarity B input Level triggered High polarity Active state Error Edge triggered 4 User defined output 22 Volume Control Shaft Encoder present input Low polarity Level triggered Active state Volume Control Shaft Encoder present 5 Solo tally output 23 User defined input High polarity Level triggered Active state Enabled 22 Dolby DP570 Multichannel Audio Tool User s Manual Controlling the DP570 Using the GPI O Connector Table 3 8 GPI O Pins Available Pin Function Pin Function 6 Solo control input 24 User defined
46. lag low breaking capacity for all operating voltages Warning The power to the unit must be off when the following steps are performed Ensure that the main power cable to the unit is not connected to a power source To inspect or replace the main fuse 1 Open the fuse compartment door in the AC power input housing with a small flat blade screwdriver See Figure E 1 2 Check that the fuse in the active lower fuse carrier is the correct rating The fuse carrier must be inserted into the compartment with the orientation shown in Figure E 1 Do not force the carrier into the compartment or both could be damaged 3 Snap the fuse compartment door closed METAL CLIP INSTALLED ON UNUSED SIDE OF CARRIER FUSE CARRIER Hp ACTIVE S INSTALL FUSE FUSE Figure E 1 Fuse Replacement E 3 2 Internal Fuse The switching power supply contains a separate fuse Most fault conditions should be protected by the main fuse The internal fuse rating is F 2A L 2 amp 250 V 20 mm fast acting low breaking capacity for all operating voltages 112 Dolby DP570 Multichannel Audio Tool User s Manual Dialogue Level 44 A D Converter Type sss 104 Dialogue Level 44 Analog Output Master Volume 20 Downmix Monitoring eee 45 Applications Most Imp
47. meter at chest level with the microphone facing up at an angle of approximately 45 degrees to the Center speaker Keep the meter at arm s length to prevent measuring audio that may reflect from your body 3 Keep the SPL meter in this position Make sure that the meter is aimed at the Center speaker as you take readings for the Left and Right speakers 4 Totake the SPL readings for the Left Surround or Right Surround speakers keep the meter at the same angle and position as you did for the front speakers Turn your body 90 degrees from the Center speaker toward the wall closest to the Surround speaker you are measuring This minimizes shadowing obscuring the meter with your body A 3 8 Computing Channel Trims After measuring each speaker compute the difference between the measured actual SPL and the target SPL Adjust the trim for each speaker appropriately using the Multichannel Trims controls shown in Figure A 8 Multichannel T rims L 0 00098 4 00098 0 00048 24 Surround 400098 0 00098 BackSumoundL 000048 sw 0 00048 0 00098 Figure A 8 Multichannel Trims Controls When you have set trim levels for all your speakers click the test noise control shown in Figure A 2 directly under the Analog Outputs check box A 3 9 Subwoofer Calibration Subwoofers are calibrated using a different process than the rest of the speakers preferably with different equipment To properly ca
48. operates in addition to the dialogue level control and is best thought of as the final volume setting on the consumer s equipment This value can be determined by measuring the SPL of pink noise at studio reference level and then adding the amount of digital headroom above that level For example if 85 dB equates to a reference level of 20 dBFS the mixing level is 85 20 or 105 dB Table D 12 Mixing Level Setting Mixing Level Setting 80 to 111 dB in 1 dB increments Room Type The Room Type parameter describes the equalization used during the final mixing session at the studio or on the dubbing stage A large room is a dubbing stage with the industry standard X curve equalization a small room has flat equalization This parameter allows an amplifier to be set to the same equalization as that heard in the final mixing environment Table D 13 Room Type Setting Room Type Setting Not Indicated Large Small 98 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Parameter Definitions Copyright Bit This parameter indicates whether the encoded Dolby Digital bitstream is copyright protected It has no effect on Dolby Digital decoders and its purpose is purely to provide information Table D 14 Copyright Bit Settings Copyright Bit Setting Yes No Original Bitstream This parameter indicates whether the encoded Dolby Digital bitstre
49. reproduced at a level of 20 dBFS Leq A while the peaks are limited to prevent signal overload in the D A converter By limiting headroom severe overmodulation of television receivers is prevented The 11 dB gain provides an average loudness level that compares well with existing analog television broadcasts In some situations it may be necessary to further constrain signal peaks above the average dialogue level so that there is less than 20 dB headroom The selection of a suitable RF mode profile achieves this D 4 Dynamic Range Control Profiles Six preset DRC profiles are available to content producers Film Light Film Standard Music Light Music Standard Speech and None Each is applied in the pattern shown in Figure D 2 amp D I je v Cut z Dialogue Level Setting 3 O a Boost Centered at z E the Dialogue Sp Range Level Setting Low Input Level High Figure 0 2 DRC Profile In each case the center of the null band is assigned to the region surrounding or adjacent to the Dialogue Level parameter setting and the DRC profile is applied in relation to that level Here are the details of the range for each profile e Film Light Max Boost 6 dB below 53 dB Boost Range 53 to 41 dB 2 1 ratio Null Band Width 20 dB 41 to 21 dB Early Cut Range 26 to 11 dB 2 1 ratio Cut Range 11 to 4 dB 20 1 ratio Dolby DP570 Multichannel Audio Tool U
50. reproduction possible regardless of the playback system Itis important to consider the output signals from each piece of equipment that can receive a Dolby Digital program in the home Table D 2 shows the output types from different equipment Table D 2 Outputs from Different Equipment Types Output Equipment Digital 521 Two Channel RF 9 Analog Analog Remodulated 5 1 channel amplifier r r The standard home theater A V amp 5 channel decoder r r High end DVD player r r r DVD player r r PC r some units r Includes games consoles High end set top box r r r r Often HDTV Set top box r r r Usually SDTV IDTV r r TV set with an integrated digital TV tuner High end TV r r Large screen TV with a 5 1 channel speaker system Set top boxes used to receive terrestrial cable or satellite digital television typically offer an analog mono signal modulated on the RF Antenna output a line level analog stereo signal and an optical or coaxial digital output DVD players offer an analog stereo and a digital output and some offer a six channel analog output for a 5 1 channel presentation Portable DVD players offer analog stereo headphone and digital outputs DVD players in computers and game consoles offer a digital output as well as analog stereo headphone and possibly six channel analog outputs 5 1 channel amplifiers decoders and receivers have six channel analog out
51. risico dat er druppels in het apparaat vallen dient u er geen vloeistoffen in bekers op te plaatsen Voor een veilig gebruik en om het gevaar van electrische schokken en het risico van brand te vermijden dienen de volgende regels in acht te worden genomen e Controleer of de spanningscaroussel het juiste Voltage staat e Gebruik alleen zekeringen van de aangegeven typen en waarden e Aansluiting van de unit alleen aan een geaarde wandcontactdoos e Denetkabel die met de unit wordt geleverd moet als volgt worden aangesloten e Fase Bruin e Nul Blauw e Aarde Groen Geel E 2 Product End of Life Information This product has been designed and built by Dolby Laboratories to give many years of service and is backed by our commitment to provide high quality support When it eventually reaches the end of its serviceable life it should be disposed of in accordance with local or national legislation For current information visit www dolby com environment E 3 Fuse Information Warning To reduce the risk of fire replace fuses only with the same type and rating Each unit uses a universal switching power supply that handles the full range of nominal mains voltages between 90 and 264 VAC and any frequency between 50 and 60 Hz Dolby DP570 Multichannel Audio Tool User s Manual Regulatory 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
52. serial adapter to connect the serial cable to a laptop However these adapters occasionally cause enough delay to interfere with data communications This problem is mostly likely to occur during firmware upgrades Take care to establish the best possible connection before beginning an upgrade 2 4 A Configuring the Unit for Remote Operation A DP570 arrives preconfigured to communicate with the remote application at 115 200 baud using a unit address 8280 The remote response from the unit is fastest at 115 200 baud so we recommend using that rate if possible The unit does support slower communication rates The unit address is only important when more than one DP570 is attached to the same COM port Contact Technical Support if you need assistance with unit addressing in that situation You can change the default remote operation settings from the unit front panel on the System Settings portion of the Setup menu Follow these steps 1 Atthe main status screen shown in the Default Status Menu Screen on page 16 press the Setup button 2 Atthe main Setup menu press until the LCD second line reads System Settings seven times 3 Press Enter 4 Press 4 The second line reads Baud Rate Press Enter if you need to change it Then press 2 until the baud rate you wish to use appears the display Then press Esc to return to the main system settings menu 5 Press 4 twice The second line reads Unit Address Press Enter if
53. shaft encoder Pulled high internally 10 k to 5 V 38 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Emulator Bypass Table 4 6 describes the electrical characteristics Table 4 6 Shaft Decoder Signal Electrical Characteristics Characteristic Min Max VT Positive going input threshold voltage 12V 21V VT Negative going input threshold voltage 0 5 V 1 4 VH Hysteresis voltage 04 1 5 4 14 Emulator Bypass When you enable Emulator Bypass the front panel Esc button is illuminated In this mode the only settings that affect the output are the router settings Monitoring options are limited to program selection If you are using the Lt Rt Input that signal is sent without decoding to the Left and Right emulator outputs Bass management remains active 4 15 Solo Input Mode The DP570 provides a two channel analog input that be routed to the analog outputs This input is called Solo because the feature provides a way to route a standard signal from a mixer such as the mixer s solo bus output into the monitor chain The feature can also be useful as a general purpose analog bypass Solo Input mode bypasses the digital audio inputs and only the solo inputs from the Analog I O connector on the back panel route to the Left and Right outputs If the Mono speaker output is selected the input signals are summed and fed to the Mono output
54. speaker in different numbers of channels with different surround decoding strategies applied As you test you can adjust metadata parameters to optimize the quality of the output A few of the most important metadata adjustments are discussed separately in later sections of this chapter e Downmix monitoring e Dialogue level e Dynamic range control 4 1 Naming Programs On the Dolby E tab you can assign a unique name to each program You can use this feature to make sure that the metadata stays properly identified throughout the production and broadcast chain Typically programs are named after their content such as Game A or Episode 5 4 2 Adjusting the Monitor System The monitoring system is fully configurable You can modify any of its parameters at any time by clicking Setup and viewing the Monitor Setup Tab on page 62 Setting up your monitoring system is discussed in full in Configuring a Monitor System on page 61 4 3 Generating and Adjusting Metadata You can choose to use internal metadata values generated by the DP570 or external values supplied from one of the two metadata input connectors You cannot use both external sources in one program Dolby DP570 Multichannel Audio Tool User s Manual 25 Using the DP570 Features Generating and Adjusting Metadata 4 3 1 Choosing the Source of Metadata Normally you will use an entire metadata stream from one source but that is not required You control this source choic
55. stream Some metadata parameters in a Dolby E stream automatically configure a Dolby Digital encoder at the point of transmission while others affect only the consumer s Dolby Digital decoder operation Dolby DP570 Multichannel Audio Tool User s Manual 83 Guide to Dolby Metadata Metadata Overview Program Source Stree Program S 1Chanrel Progam TweChannel __ Dolby E is a professional technology used for broadcast applications such as program origination and distribution the Dolby E bitstream carries the entire metadata parameter set Dolby Digital used for consumer applications such as transmission to the home or for DVD authoring employs a subset of the full metadata parameter set called Dolby Digital metadata the Dolby Digital bitstream carries only those parameters necessary for proper decoding by the consumer Metadata is first inserted during program creation or mastering and is carried through transmission in a broadcast application or directly onto a DVD The metadata provides control over how the encoded bitstream is treated at each step on the way to the consumer s decoder This control however requires the producer to set the metadata parameters correctly since they affect important aspects of the audio and can seriously compromise the final product if set improperly Although most metadata parameters are transparent to consumers certain parameters affect the output of a home decoder su
56. the selected 51 2 Internal program configuration the metadata Program 3 2 27 source the program number being monitored its acmod and its dialnorm Master Volume Press Enter to view current Metadata Params metadata values Values Enter to View cannot be changed on this menu Video Ref Audio Input User Preset Press Enter to view Error Status existing errors Errors Enter to View cannot be corrected on this menu Firmware Version Figure C 13 Status Menu 82 Dolby DP570 Multichannel Audio Tool User s Manual Appendix D A Guide to Dolby Metadata Metadata provides unprecedented capability for content producers to deliver the highest quality audio to consumers in a range of listening environments It also provides choices that allow consumers to adjust their settings to best suit their listening environments In this document we first discuss the concept of metadata e Metadata overview We then discuss the three factors controlled by metadata that most directly affect the consumer s experience e Dialogue level e Dynamic range control DRC e Downmixing Finally we define each of the adjustable parameters and provide sample combinations e Individual parameters e Metadata combinations D 1 Metadata Overview Dolby Digital and Dolby E are both data rate reduction technologies that use metadata
57. value selected 5 2 2 Monitoring the Dialogue Level As you mix check the dialogue level indicator the yellow numbers shown in Figure 5 2 frequently to be sure that the program stays within acceptable limits Once a Dialogue Level value has been selected either short term or infinite measurements can be used depending on your preference Again see Measuring the Average Loudness of Identified Clips on page 31 to understand the differences between them 44 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 DVD Mastering Using the DP570 with Other Dolby Equipment 5 2 3 Monitoring Downmixes Once dialnorm has been set and a measurement mode selected check downmixes make any adjustments necessary so that the mix translates best across the appropriate listening environments A full dynamic range 5 1 mix may sound more pleasing than the same mix that is stereo or Pro Logic downmixed In some cases a compromise on downmixes must be made to ensure that the 5 1 mix remains the best Note Remember to prioritize your mixes Use the downmix parameters to help create the best downmix possible from your original multichannel mix D ownmis Full 3 Stereo t Phantom Stereo Mono le PL Figure 5 3 Downmix Monitoring Controls Check both compression modes on the full 5 1 mix as well as on downmixes This is an important step because you cannot be certain which mod
58. your studio s digital reference level before turning on a test noise when calibrating your speaker system The default value is 220 dB Adjust it using the dial shown in Figure A 7 Digital Reference Level 20 dB Figure 7 Digital Reference Level A 3 2 Setting the Master Trim Set the Master Trim shown in Figure 4 10 to 0 A 3 3 Setting the Master Volume Before generating test noise make sure that master Volume is set low 20 to 30 Use the slider shown in Figure 4 11 JL p lt lt make this adjustment you must close the Setup window to activate the main lt application screen When satisfied reopen the Setup window A 3 4 Picking a Target SPL When picking a target SPL it is most important that each of the main channels is set to the same level the absolute level is secondary The following examples are suggestions for selecting an absolute level e film work test noise at reference level the main channels Left Right Center should produce an SPL of 85 dBc For film work Surround channels are calibrated to an SPL of 82 dBc with Surround 3 dB Attenuation checked The net result is an SPL of 85 dBc when noise is played through the system e For television work test noise at reference level is typically set to produce an SPL ranging from 79 to 82 dBc for each of the main five channels The lower reference level for television is due to the lower aver
59. 0 front panel interface Use of DolbyRemote 570 allows the DP570 to be located in another room or at a distance from the operator While DolbyRemote 570 is in operation the Remote LED on the front panel of the DP570 is lit and access to the setup menu via the front panel buttons is disabled Note The RS 232 specification limits serial cable length to 50 feet Using low capacitance cables can however extend this limit up to 147 feet Refer to the specification for exact information 2 4 4 System Requirements DolbyRemote 570 can be run on a PC that meets these minimum requirements 166 MHz Pentium processor e 32 MB RAM e 10MB available hard drive storage e Super VGA video card with at least 800 x 600 resolution 2 4 2 Installing the Software DolbyRemote 570 software is provided as DP570 ZIP on the CD packed in the shipping carton Simply extract the ZIP file to a folder on the local machine and then click the executable to begin using the application Dolby DP570 Multichannel Audio Tool User s Manual Getting Started 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 port or the rear panel Remote RS 485 port For connector and pin descriptions see the Front Panel Remote Connector on page 71 and the Rear Panel Remote Port on page 73 Note You can use a USB to
60. 105 A Guide to Dolby Metadata Metadata Combinations 106 Dolby DP570 Multichannel Audio Tool User s Manual Appendix E Regulatory Notices and Fuse Information This appendix contains important safety information required in the United States Canada the United Kingdom and the European Union It also contains important information on the safe replacement of fuses Regulatory Notices E 1 1 USA This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference at his or her own expense Exposed portions of the power supply assembly are electrically hot To reduce risk of electric shock the power cord must be disconnected when the power supply assembly is removed Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Ro or Do no
61. 2 ms If C is three feet more than L or set Center delay to 3 ms If C R set Center delay to 0 ms ms and adds corresponding positive delay time to the Left Right and Surround lt Note If you set a negative Center delay value the DP570 actually sets Center delay to 0 outputs Surround Delay C minus 5 C S the shorter of the two surround speaker distances equals the surround delay setting in ms Calculating Pro Logic Delay Pro Logic delay calculation includes an additional factor C minus S plus 15 C 5 15 equals the Pro Logic setting in ms A 2 2 Entering Delay Values Entering Delays in DolbyRemote 570 Use the dials to enter the delay values into the Delay fields shown in Figure A 6 You can also type in the fields Delay Center Oms r Left Surround Oms Right Surround Oms Back Surround ms Pro Logic 15ms Figure A 6 Speaker Delay Values 66 Dolby DP570 Multichannel Audio Tool User s Manual Configuring a Monitor System Calibrating Speaker Playback Levels Calibrating Speaker Playback Levels The following sections discuss and illustrate the steps in speaker calibration in the order they should be performed Normally this entire process need only be executed once for each set of monitor speakers We do recommend periodic checks to verify that current settings are still appropriate A 3 1 Setting the Digital Reference Level Set this level to match
62. 707 dB N A N A 0 707 dB 0 707 dB 3 dB 3 dB 3 dB Dolby Srnd Mode N A Dolby Surround N A N A N A Audio Prod Info Yes Yes No Yes No Mixing Level 101 dB 90 dB N A 95 dB N A Room Type Large Small N A Large N A 104 Dolby DP570 Multichannel Audio Tool User s Manual A Guide to Dolby Metadata Metadata Combinations Table 0 28 Metadata Combinations Figure continued Action Film Local News Live Sporting Parameter Drama Musi aramere 5 1 ama LURDO Mono ee 2 Events 5 0 Copyright Yes Yes Yes Yes Yes Original Bitstream Yes Yes Yes Yes Yes Preferred Stereo Lt Rt Preferred Lt Rt Preferred N A Lo Ro Lt Rt Preferred Downmix Preferred Lt Rt Center Downmix 0 707 1 0 N A 0 707 Level 3 dB 0 dB 3 dB Lt Rt Surround 0 707 0 595 0 707 Downmix Level 3 dB 74 5 dB 3 dB Lo Ro Center Downmix N A N A N A N A 0 707 Level 3 dB Lo Ro Surround N A N A N A N A 0 595 Downmix Level 74 5 dB Dolby Surround EX Dolby Surround EX N A N A N A N A Mode A D Converter Type Standard Standard Standard Standard Standard DC Filter Enabled Enabled Enabled Enabled Enabled Lowpass Filter Enabled Enabled Enabled Enabled Enabled LFE Lowpass Filter Enabled N A N A N A N A Srnd 3 dB Atten Enabled N A N A Disabled Disabled Srnd Phase Shift Enabled N A N A Enabled Enabled Dolby DP570 Multichannel Audio Tool User s Manual
63. Configurations 5 142 4 2 5 1 2 1 4 2 1 4 4 3x2 4 2 2 2 2 2 1 4 2 2 1 2 4 1 4 4 1 6 1 4 2 4 3 2 2 1 2 2 2 2 4 1 2 2 1 5 1 2 4 2 5 1 2 1 4 2 1 4 4 3x2 Program Description Text This is 32 character ASCII text field that allows the metadata author to enter a description of the audio program For example this field may contain the name of the program Movie Channel Promo a description of the program source Football Main Feed or the program language Danish Dolby DP570 Multichannel Audio Tool User s Manual 93 Guide to Dolby Metadata Parameter Definitions Dialogue Level The Dialogue Level parameter is discussed in Dialogue Level on page 86 Channel Mode This parameter also known as Audio Coding mode indicates the active channels within the encoded bitstream and affects both the encoder and consumer decoder This parameter instructs the encoder which inputs to use for this particular program it tells the decoder what channels are present in this program so the decoder can deliver the audio to the correct speakers The setting is described as X Y where X is the number of front channels Left Center Right and Y the number of rear Surround channels The availability of certain channel modes depends on the Dolby Digital encoder data rate and whether the LFE channel is present For example you can t have a mono stream with an LFE channel 1 1 or a 3 2 stream at 96 kbps Appropri
64. Figure C 3 List of Figures DP570 Functional Block nennen nnne nnns 3 Monitor Goffig ration Tab itin re even a bte there 10 Program Configuration Selector 2 0 enne nennen nnne 11 DP570 Co ntrol Options n on e treten edat ede ind 13 FEront Panel Buttoris osi aet n Meet e epu e Re ee 14 Default Status MENU Screen aie eet pc UL DC RE GAUL EX s vg 16 Basie LED Indicators 17 Channel Activity LED Indicators 4 1111 10 18 Initial Setup Menu Screen 1000 nn 18 22 Miri 27 Second Program avian etatem ie etc ead 29 Dowrimix PONS dice iue abesse 30 Measurement Control 0 nennen nennen nennen nennen renis 30 Short term Measurements 32 Metadata Hold BUON a tied eae 34 User Preset WindOW 3 5 t eee en ut iade tated 35 Unity Gain Mode BOX teer tei e tete i eret 39 Et RUGAIN 40 Master Trim Control41 Master Volume Control41 Content Creation dod epe ea dd p Hc tide Rd Rp ee de dd eate 43 Dialogue Level Controls 4 4 0
65. LLY OR IN WRITING OF THE POSSIBILITY OF SUCH DAMAGES Dolby Pro Logic and the double D symbol are registered trademarks of Dolby Laboratories Part Number 91753 Surround EX and Dialogue Intelligence are trademarks of Dolby Laboratories other trademarks remain the property of their respective owners Issue 3 2006 Dolby Laboratories Inc All rights reserved 506 13905 17674 ii Dolby DP570 Multichannel Audio Tool User s Manual Table of Contents List OT Figures soa ER na buda dade Accus tam Nl viii List oL Tabl88s daas eet as cei bs dod elus de xi Chapter 1 Overview 1 1 Analog Monitoring Capabilities ies 22r eet retento Der inter Eee EE 1 1 2 Remote Control Capabilities sess nennt nnns 1 1 9 Principles nde itu d dee bisce e Ph ual Pe LER uoa ceu ege 1 1 4 Main ApplIGatioris 5 5o ttt ei d d d i a eta iid 4 1 4 1 Use in DVD Mastering 2 oen eret te nte ict aoc e e dee een 4 144 2 Use in Digital Televisione srr nuie E AEA AEEA tied 4 Chapter 2 Getting Started 2 1 Unpacking and 5 2 2 Safety Information 2 2 ce te e fet ded Be 5 2 3 installing the DP aee Hd EUR DUE Sete
66. Pro Logic decoding Decoders can use this flag to automatically switch on Pro Logic decoding as required Table D 10 Dolby Surround Mode Settings and Definitions Dolby Surround Definition Mode Setting Not Dolby Surround The bitstream contains information that was not encoded in Dolby Surround Dolby Surround The bitstream contains information that was encoded in Dolby Surround After Dolby Digital decoding the bitstream is decoded using Pro Logic Not Indicated There is no indication either way Dolby DP570 Multichannel Audio Tool User s Manual 97 A Guide to Dolby Metadata Parameter Definitions Audio Production Information This parameter indicates whether the mixing level and room type values are valid Yes indicates that a receiver or amplifier can use these values No indicates that these values are invalid In practice only high end consumer equipment implements these features Table D 11 Audio Production Information Settings and Definitions Audio Production D Definition Information Setting Yes Mixing Level and Room Type parameters are valid No Mixing Level and Room Type parameters are invalid and should be ignored Mixing Level The Mixing Level parameter describes the peak SPL during the final mixing session at the studio or on the dubbing stage The parameter allows a consumer s amplifier to set its volume control to match that of the mixing room This control
67. Table 0 28 Metadata Combinations 0000 104 xii Dolby DP570 Multichannel Audio Tool User s Manual Chapter 1 Overview The Dolby DP570 provides unprecedented control and reference monitoring for the creation and delivery of Dolby Digital and Dolby E surround sound as well as metadata for DTV and DVDs The DP570 Multichannel Audio Tool simplifies the preparation of content for Dolby E and Dolby Digital encoding Its ability to control and configure the monitoring environment and its ability to set and edit metadata parameters makes it a key tool for postproduction DVD and digital television facilities You can monitor exactly what the consumer ultimately hears in real time without the need to decode and reencode material The convenient interface lets you take full advantage of the audio metadata that Dolby Digital bitstreams deliver to consumer decoders ensuring that home listeners hear programs exactly as originally intended The DP570 enables the user to create new metadata and to modify any previously generated metadata Its built in Leq A meter provides the crucial ability to determine and set the dialogue normalization dialnorm value The DP570 outputs metadata as a separate data stream to be combined later with the multichannel audio in a Dolby E or Dolby Digital encoder 1 4 Analog Monitoring Capabilities The DP570 is particularly useful in conjunction with audio consoles lacking adequate multich
68. The DP570 should return similar values for each of the clips If the variation between the clips is 4 dB or less select a value for the dialogue level parameter within that range that best indicates the average level of the program content At any time to use the measurement level displayed on the software click Accept and the dialogue level parameter is set at that level To set the dialogue level parameter manually click and drag the Dialogue Level Set slider to the setting you want n T If the DP570 measures more than a 4 dB difference in the audio clips reconsider the dips you have chosen recalling that these clips should represent normal speech level in your content 7 4 8 Setting Dynamic Range Control You can choose dynamic range control DRC profiles for RF and Line modes Use the emulator to monitor the effects of each profile setting on the program content and select the profile that best suits the material in each mode Both RF and Line modes can be set to any of the following profiles None Film Standard Film Light Music Standard Music Light and Speech Each profile is a set of compression parameters such as ratio attack and release M d RS A Tip Remember to set the dialogue level parameter properly before making judgments about For detailed information see Dynamic Range Control Profiles on page 89 The Custom adjustment on the emulator all
69. a Connecting the seas E 57 9 2 Typical Activites a retells Ee rm 58 8 2 1 Monitoring nene nennen ennt inner rnnt nennen enr nnns 58 8 2 2 Monitoring Dialogue Level errerik nennen nennen nns 59 9 3 Using Unity Gain Mode ooh edit ca ecc editos ote cea ned EU dives resa 60 8 4 Using the DP570 with Other Dolby Equipment ssssseeseeneneeneennnmnee nnns 60 8 5 Most Important Metadata dare deo cete 60 Appendix A Configuring a Monitor System A 1 Assigning Monitor System Configuration 6 61 A 1 1 Opening the Monitor Setup 61 A 1 2 Selecting Analog 62 A 1 3 Choosing Bass Management 62 A 1 4 Choosing Back Surround nne 64 1 5 Emulator Reversi soiden a e intel Lad 64 A 1 6 Setting the Lt Rt 64 A 1 7 Configuring Dolby Pro Logic ll nennen nennen nennen neni 64 A2 Setting Delay ert t eta ur ter tice tar teet 65 A 2 1 Calculating Delay 4 nennen 66 A22 Entering Delay Values cnt ict e eem pete tn M fee em edente 66 Calibrating Spe
70. a mode Metadata in 2 Either Either Metadata error Invalid signal while unit is in External Metadata mode Emulator bypass Either Either Bypass Indicates Bypass is active Delay LED Either Either On Not yet implemented Lt Rt input Either Either Enabled Indicates Lt Rt input is active Dim mute Either Either Enabled Indicates Dim Gain setting is active Surround EX Either Either EX on Indicates Surround EX is active Pro Logic Either Either Pro Logic on Indicates Pro Logic is active L speaker mute Either Either Mute Indicates Mute is active R speaker mute Either Either Mute Indicates Mute is active C speaker mute Either Either Mute Indicates Mute is active SW speaker mute Either Either Mute Indicates Mute is active Ls speaker mute Either Either Mute Indicates Mute is active Rs speaker mute Either Either Mute Indicates Mute is active Bs speaker mute Either Either Mute Indicates Mute is active Speaker Select Either Either Speaker selected Indicates which speaker is selected Dolby DP570 Multichannel Audio Tool User s Manual 21 Controlling the DP570 Using the GPI O Connector Table 3 7 GPI Functions Available Function Polarity Trigger Active State Description Program Select 1 8 Either Either Enabled Indicates which program is selected Preset Select 1 32 Either Either Enabled Indicates which preset is selected Downmix Mode Either Either Enabled Indicates which mode
71. a monitoring system see Configuring a Monitor System on page 61 Your DP570 is now ready to use Dolby DP570 Multichannel Audio Tool User s Manual 9 Getting Started Selecting a Program Configuration DP5 0 Setup Monitor GPIO Analog 1 0 Delay Dim Gain Master Trim Analog Outputs Center f Speaker Select 6 08 Multichannel Test Noise am 21 OdB Stereo 5 Left Surround G Pink Filtered z p AP Pte Multichannel Trims Right Surround L 0 00098 4 00098 Oms R 0 000dB R Surround 4 00098 Back Surround 309 C 2 00048 Back SuroundL 000048 0 00096 Panorama None Digital Reference Center Width Bass Management m pes Enabled e L R Disabled Subwoofer Crossover 80 100 120Hz 208 ME 1 LFE Monitor Auto C On C Off z 3 0 3 1 1111111 Pro Logic Back Surround 0 00098 41 p 15ms Pro Logic II Mode Dimension Move _ Unity Gain Back Surround Speakers LURI Gain UPECEEE us usic e Extended BSI Enable 19 None 2 H Pro Logic Emulator Reversion 2 Matrix Sticky Settings Enable C Figure 2 1 X Monitor Configuration Tab 2 5 Selecting a Program Configuration The first step in monitoring is to select a program configuration that reflects the number of channels within the program s yo
72. ach program Surround Flag Set this according to the setting of the original mixing room Typically this flag is enabled when a mix was balanced on a theatrical dubbing or mixing stage where the surround channels were SPL adjusted to 82 and the main speakers were SPL adjusted to 85 Downmix parameters set according to taste e Center downmix level e Surround downmix level e Preferred stereo downmix t Rtcenter downmix level e t Rt surround downmix level e Lo Ro center downmix level Lo Ro surround mix level 46 Dolby DP570 Multichannel Audio Tool User s Manual Chapter 6 Using the DP570 in Live Remote Broadcast In preparation for and during a live remote broadcast it is important to experience the audio program the same way a viewer will in the home so you can assess the mix quality and make appropriate adjustments The DP570 provides quick and accurate emulation of a viewer s listening environment The instructions in this section allow you to use the DP570 to respond quickly with necessary changes and improvements 6 1 Connecting the DP570 for Live Remote Broadcast Figure 6 1 shows a typical live remote setup In this application 5 1 mixed audio is routed from the console to the MPEG encoder through the DP571 DP563 and DP570 The mix from the console is sent first to digital inputs 1 6 of the DP571 and on to the DP570 for metadata authoring and monitoring via the DP571 s loop through connect
73. age listening levels used by the consumer typically 70 to 75 dBc Dolby DP570 Multichannel Audio Tool User s Manual 67 Configuring a Monitor System Calibrating Speaker Playback Levels e For music mixing each speaker channel should be set to the same SPL the same as television mixing There is no standard practice for reference levels for music mixing Some engineers prefer to mix louder than others do but if the levels between channels are correct the overall level is not as important When mixing for television or music in small mixing rooms such as remote recording trucks the Surround channel is generally set 2 dB lower than the front channels This takes into account the short distance to the Surround speakers Experience has shown that this setting makes the sound in the home environment very close to the sound heard by the mixer A 3 5 Generating Test Noise Warning Before you turn on test noise be sure that your playback system is set no higher than moderate volume If the playback level is high you risk damaging your speakers and possibly your hearing The default test noise level from the DP570 is 20 dBFS to the digital outputs 4 dBu to the analog monitor outputs The DP570 generates two kinds of test noise pink and filtered Pink noise exerts an equal sound pressure level across the entire spectrum Filtered noise is pink noise that has been highpass filtered at the preestablished LFE crossover frequency
74. aker Playback 67 A 3 1 Setting the Digital Reference 1 67 3 2 Setting the Master Trim 67 A 3 3 Setting the Master Volume 67 A 3 4 Picking a Target 1 67 Dolby DP570 Multichannel Audio Tool User s Manual A 3 5 Generating Test 68 6 Increasing the System 0 0 68 A9 7 Measutirig dese 69 A 3 8 Computing Channel Tits vez occi ottenere 69 A 3 9 Subwoofer 69 A 3 10 Calibrating Emulator 70 4 Assigning a Dim 2 0 1 11 0 70 Appendix Connector Specifications B 1 Front Panel Remote tenent 71 B 2 Digital Audio eet ena tete 71 B 3 Digital A dio Ol tputs 5 5 oe e et tmo dise ate tna 71
75. al decoder this parameter setting determines a level shift in the decoder that sets or normalizes the average audio output of the decoder to a preset level This aids in matching audio volume between program sources In broadcast transmission the proper setting of Dialogue Level ensures that the consumer receives a standard listening level so switching channels or watching a television program through the commercial breaks doesn t require adjusting the volume Using the same standard for all content whether conveyed by broadcast television DVD or other media enables the consumer to switch between sources and programs while maintaining a comfortable and consistent listening level The proper setting of the Dialogue Level parameter also enables the Dynamic Range Control profiles chosen by the content producer to work as intended in less than optimal 86 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Dialogue Level listening environments and is essential in any content production whether it is for transmission in a broadcast stream or for direct distribution to consumers as with DVDs Note Programs without dialogue such as an all music program still require a careful setting of the Dialogue Level parameter When setting the parameter for such content itis useful to compare the program to the level of other programs The goal is to allow the consumer to switch to your program without having
76. ally offer this option Decoders with stereo mono or RF remodulated outputs such as those found on DVD players and set top boxes often do not In these cases the decoder automatically applies the most appropriate DRC metadata for the decoder s operating mode The Dolby Digital stream carries metadata for the two possible operating modes in the decoder The operating modes are known as Line mode and RF mode due to the type of output they are typically associated with Line mode is typically used on decoders with six or two channel line level outputs and RF mode is used on decoders that have an RF remodulated output Full featured decoders allow the consumer to select whether to use DRC and if so which operating mode to use The consumer sees options such as Off Light Compression and Heavy Compression instead of None Line mode and RF mode Advanced decoders may also allow custom scaling of the DRC metadata that needs to be done during metadata authoring or encoding is selection of the dynamic range control profiles for Line mode and RF mode The profiles are described in the following sections Note While the use of DRC modes during decoding is a consumer selectable feature the Dialogue Level parameter setting is not Therefore setting the Dialogue Level parameter properly is essential before previewing a DRC profile Line Mode Line mode offers these features e Low level signal boost compression scaling is allowed e
77. am must be carefully measured and then appropriately set This is easy using the control in the Dialogue Level Set area of the DolbyRemote 570 shown in Figure 4 4 00 00 08 nt Pause Dialogue Level Set Ext M c ge Accept Figure 44 Measurement Control Options Identifying Normal or Average Level Program Segments To set the dialogue level parameter the first and most important step is selecting audio clip samples that represent the average loudness level of the program content Remember that the dialogue level parameter establishes the level for normal dialogue in the program quieter and louder scenes tend to show higher or lower measurements than the correct value Using more than one clip is worthwhile particularly in programs that feature 30 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Measuring and Setting the Dialogue Level characters with different vocal qualities In programs without dialogue such as a music concert sections of average level need to be identified With representative audio clips identified you can use the DP570 to set the dialogue level parameter You can use either the software interface or the front panel buttons for this operation we describe using the software interface first 4 7 2 Measuring the Average Loudness of Identified Clips measurement feature complies fully with 60804 2000 10 Integrating Averaging So
78. am is the master version or a copy It has no effect on Dolby Digital decoders and its purpose is purely to provide information Table D 15 Original Bitstream Settings Original Bitstream Setting Yes No Note The parameters DC Filter Lowpass Filter LFE Lowpass Filter Surround 3 dB Attenuation and Surround Phase Shift appear after the Extended BSI parameters on Dolby E and Dolby Digital equipment menus DC Filter This parameter determines whether a DC blocking 3 Hz highpass filter is applied to the main input channels of a Dolby Digital encoder prior to encoding This parameter is not carried to the consumer decoder It is used to remove DC offsets in the program audio and would only be switched off in exceptional circumstances Table D 16 DC Filter Settings DC Filter Setting Enabled Disabled Lowpass Filter This parameter determines whether a lowpass filter is applied to the main input channels of a Dolby Digital encoder prior to encoding This filter removes high frequency signals that are not encoded Atthe suitable data rates this filter operates above 20 KHz In all cases Dolby DP570 Multichannel Audio Tool User s Manual 99 A Guide to Dolby Metadata Parameter Definitions it prevents aliasing on decoding and is normally switched on This parameter is not passed to the consumer decoder Table D 17 Lowpass Filter Setting Lowpass Filter Setting Enabled Disabled
79. an associated service using a maximum total bit rate of 512 kbps Refer to the Guide to the Use of the ATSC Digital Television Standard Document A 54 for further information Although a detailed description of each option follows in practice most programming uses the default setting Complete Main An example of an exception to this rule is a special karaoke DVD or an emergency service within digital television Table D 6 itstream Mode Options Bitstream Mode Definition Setting Complete Main CM CM flags the bitstream as the main audio service for the program and indicates that all elements are present to form a complete audio program Currently this is the most common setting The CM service may contain from one mono to six 5 1 channels Main M amp E ME The bitstream is the main audio service for the program minus a dialogue channel The dialogue channel if any is intended to be carried by an associated dialogue service Different dialogue services can be associated with a single ME service to support multiple languages Assc Visual Imp VI This is typically a single channel program intended to provide a narrative description of the picture content to be decoded along with the main audio service The VI service may also be a complete mix of all program channels comprising up to six channels Assc Hear Imp HI This is typically a single channel program intended to convey audio that has been processed for i
80. annel monitoring facilities With the addition of the high performance 24 bit Cat No 548 Analog Option Card independent 5 1 channel two channel and mono outputs are available to feed three separate speaker systems The card also gives users control over levels channel mutes and channel solos through a master volume control speaker trim controls and an input for a console solo bus An additional input and integrated Dolby Pro Logic II and Pro Logic decoders allow proper monitoring of Lt Rt sources and downmixes from all other inputs 1 2 Remote Control Capabilities The DP570 contains extensive GPI O control and includes a software remote application for use with a Windows based PC The optional Cat No 549 GPI O Controller provides key remote control functions 1 3 Principles of Operation Until the DP570 the only way to hear the effect of metadata on audio during mastering was to pass the audio through the Dolby Digital encode decode chain This procedure could not be achieved in real time and offered an unwieldy interface The DP570 provides this function in real time by applying metadata parameters to baseband PCM audio This emulation function allows you to preview the effects of downmixing setting dialogue Dolby DP570 Multichannel Audio Tool User s Manual Overview Principles of Operation level Pro Logic decoding and the other functions controlled by metadata and experienced by consumers The DP570 s convenient
81. ate data rates are shown in the definition of each setting Note The presence of the LFE channel is indicated by a the LFE Channel parameter Table D 4 Channel Mode Definition and Data Rates Channel Mode Definition and Data Setting Rate 1 1 Dual mono not valid for broadcast or DVD production 1 0 Mono From 56 kbps usually 96 kbps 2 0 Stereo From 96 kbps usually 192 kbps 3 0 From 256 kbps 2 1 From 256 kbps 3 1 From 320 kbps 2 2 From 320 kbps 3 2 From 384 kbps often 448 kbps 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 mode determines whether the LFE 94 Dolby DP570 Multichannel Audio Tool User s Manual A Guide to Dolby Metadata Parameter Definitions Channel parameter can be set You must have at least three channels to be able to add an LFE channel Table D 5 LFE Channel Settings LFE Channel Setting Enabled Disabled Bitstream Mode This parameter describes the audio service contained within the Dolby Digital bitstream A complete audio program may consist of a main audio service a complete mix of all the program audio an associated audio service comprising a complete mix or one main service combined with an associated service To form a complete audio program it may be but rarely is necessary to decode both a main service and
82. been exposed to rain or moisture does not operate normally or has been dropped E 1 2 Canada E 1 3 UK E 1 4 EU This Class A digital apparatus complies with Canadian ICES 003 The power cord Dolby Part No 92021 supplied for use in Europe is not suitable for use in the UK To use the cord in the UK cut off the CEE7 7 plug and replace with an approved BS 1363 13A plug The core colored green and yellow must be connected to the terminal in the plug that is marked with the letter E or by the ground symbol orcolored green or green and yellow The core colored blue must be connected to the terminal that is marked with the letter N or colored black The core colored brown must be connected to the terminal that is marked with the letter L or colored red This apparatus must be earthed This equipment complies with the EMC requirements of EN55103 1 1996 Emission and EN55103 2 1996 Immunity when operated in E2 environment in accordance with this manual The power cord with CEE7 7 plug Dolby Part No 92021 supplied with this unit must be used with a polarized socket or the socket must be supplied via a residual current breaker RCD The mains power disconnect device for this unit is the plug in mains cord rather than a power switch The mains cord must remain readily accessible for disconnecting mains power This equipment is designed to mount in a suitably ventilated 19 rack Ensure that any ventilation slots
83. ble 3 3 Table 3 4 Table 3 5 Table 3 6 Table 3 7 Table 3 8 Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Table 4 6 Table A 1 Table B 1 Table B 2 Table B 3 Table B 4 Table B 5 Table B 6 Table D 1 Table D 2 Table D 3 Table D 4 Table D 5 Table D 6 Table D 7 Table D 8 Table D 9 Table D 10 Table D 11 Table D 12 Table D 13 Table D 14 Table D 15 Table D 16 Table D 17 Table D 18 Table D 19 Table D 20 Table D 21 Table D 22 Table D 23 Table D 24 Table D 25 Table D 26 Table D 27 List of Tables Front Panel Navigation 14 shifted Key F lnCtiOris co i aeree Ert ebore vei teet ur P o 15 Basic Stat s ridiCatloris oec c tei gerente 17 Channel Activity LED Indications 4 0 0 nene 18 Text Entry Gommarids 19 Functions Available 20 Functions nnne 21 GPO Pins Available in ea ee AN pie et are EU tes e eerta 22 Metadata Parameter Defaults 26 Measurement Mode nnn nnns 33 Input Channel 065 37 Default Router Presets i ee
84. bs of the DolbyRemote 570 application shown in Figure 4 1 Dialogue normalization controls are shown in Measurement Control Options on page 30 Program 1 Audio Processing Dynamic Range Bitstream Info Extended BSI Extl 2 3 2 Dolby E Channel Mode LFE Channel Enable C DC Highpass Filter Lowpass Filter LFE Filter Surround Phase Shift Surround 3 dB Attenuation Figure 4 1 Metadata Tabs Dolby DP570 Multichannel Audio Tool User s Manual 27 Using the DP570 Features Generating and Adjusting Metadata Example 1 Overriding an Individual Parameter Value We ll assume you are using an external metadata stream The output of the DP570 is feeding a DP571 or DP569 You want to add a compression profile because none was originally included To do so 1 Select the program you wish to change 2 Click the Dynamic Range metadata tab on the DolbyRemote 570 3 Click the radio button to change the source of the Line Mode Compression from external to internal You can now select one of the five compression profiles for example Film Light 4 3 3 Using External Metadata When using external metadata make certain that the values are correct for the program Particularly when you use external program configurations it is important to ensure that the number of programs and the number of channels in each program are correctly set Monitoring with the DP570 should alert you to any problems Example 2 Ad
85. ch as downmixing for a specific speaker configuration or when the consumer chooses Dynamic Range Control to avoid disturbing family and neighbors Figure D 1 shows a 5 1 2 Program Config consisting of a 5 1 channel program and a two channel secondary audio program SAP lt Multichanrel Monitor System The Dolby E kitstream contains koththe 51 and 2 Metadata ime charnel program s encoded audio and each I LR program s metadata 02570 L C LFE Multichannel Audio DP571 Tool LsRs Dolby E Encoder 15 142 rogram Cond 5 142 Program H LtRt Distribution d Decoded Dolby E bitsteam delivers boththe 51 and The Doby Digital bitstream two channel program s cortairs single program s encoded audio along with ercoded audio and corresponding metadata comesponding metadata DP572 DP569 Broadcast iet able DobyE Decoder DobyDigtlEncoder Doiby Two 1 Charel SAP or Visual Encoder Descriptive Metadata Figure D 1 Metadata Flow from Production to Consumer 84 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Metadata Overview There are two functional classifications of metadata Professional These parameters are carried only in the Dolby E bitstream They are used to automatically configure a downstream Dolby Digital encoder a
86. ch to select the Dialogue Level value for the program The measured value of the audio program appears in yellow the Dialogue Level value set in the software appears in green Dialogue Level Set 00 00 08 prricirgrggag ggg Figure 5 2 Dialogue Level Controls In most cases selecting and measuring a representative period of speech within the program will serve as a good example of the overall dialogue level throughout the program provided good mixing practices are observed In some cases such as documentaries location sound and so on it may be difficult to match the dialogue level from section to section and while the dialogue level indicator on the DP570 can help your ears are the best tool Note For 5 1 programming the measurement channel should be set to Center as most of the important speech content will occur in this channel Measure both the Left and Right channels of stereo input To determine a Dialogue Level value for the program use short term measurements as they provide a measurement over a ten second period of program audio and do not average the measurement over a long period of time For more information on the short and infinite term measurement modes see Measuring the Average Loudness of Identified Clips on page 31 Pressing the Accept button resets the Dialogue Level parameter within the output metadata stream feeding downstream equipment to equal the yellow value The green number changes to the
87. channel program Figure 4 2 Adding a Second Program 4 4 Troubleshooting Metadata Problems The DP570 has several status indicators to help troubleshoot metadata related problems The front panel status display shows the metadata source as External if any metadata source is set to external Metadata Input indicators on both the DP570 front panel and in the DolbyRemote 570 software provide status information The indicators are green any time a valid metadata signal is present whether or not it is being used They turn red only when an external port is in use and there is a problem with the metadata signal The Metadata Params submenu under either the Setup or status menu on the front panel display can also be used to determine the current source for a parameter and its current value Note If the DP570 is using external metadata and there is a temporary error in the metadata stream the unit continues to use the last valid metadata values When the error clears the DP570 resumes using the stream from the external port 4 5 Outputting Metadata You can choose to send metadata from the DP570 to downstream devices using the Metadata Output connector on the rear panel The frame rate for output metadata is set by the received video reference signal and is locked to the beginning of the video frame Dolby DP570 Multichannel Audio Tool User s Manual 29 Using the DP570 Features Monitoring Downmixes 4 6 Monitoring Downmi
88. d line of the display Dolby DP570 Multichannel Audio Tool User s Manual 75 Front Panel Menus Metadata Params Submenu C 3 Metadata Params Submenu Metadata Params 2 Metadata Params Dialogue Lev Srnd Ph Shift N f Dialogue Lev Srnd Ph Shift 27 dB Enable 5 yk Parameter Selection Order 1 Dialogue Lev 11 Room Type 21 DC Filter 2 Channel Mode 12 Copyright 22 Lowpass Filt 3 LFE Channel 13 Original Bitstrm 23 LFE Filter 4 Bitstrm Mode 14 Pref Dwnmx 24 Attn 5 Line Mode Pro 15 Lt Rt C Dwnmx 25 Srnd Ph Shift 6 RF Mode Pro 16 LURt S Dwnmx 7 RF Ov Protect 17 Lo Ro C Dwnmx 8 Dolby Srnd 18 Lo Ro S Dwnmx 9 Audio Prod Info 19 Dolby Srnd EX 10 Mixing Level 20 A D Conv Type Figure C 2 Metadata Parameters Submenu Measure Control Submenu gt Measure Control Set Dialogue Level Dialogue Lev Set Dialogue Ley gt Set Level rt 27dB J N Measure Control gt Measure Mode Running Running J 2 Measure Control Measure Reset E Measure Reset C Reset J Measure Control Channel Select B Channel Select 5 Channel Select 2 Channel Select Center y All Left Measure Control Channel Select B annel Select Measure Method Right Stereo
89. data out Oo CO NI BD OTF B WY N Shield a See the note on DCE equipment on page 71 Metadata Output Port These ports are 9 pin female D connectors with full duplex RS 485 protocol running at 115 kbps The pinout is SMPTE 207M compatible Table B 3 Metadata Output Port Pinout Pin Connection Shield RX A asynchronous data out TX B asynchronous data ir Ground aj Bl N e NC 72 Dolby DP570 Multichannel Audio Tool User s Manual Connector Specifications Rear Panel Remote Port Table B 3 Metadata Output Port Pinout Figure continued Pin Connection Ground TX A asynchronous data in 6 7 RX B asynchronous data out 8 9 Shield a See the note on DCE equipment on page 71 B 8 Rear Panel Remote Port This is a 9 pin female 5 485 D connector The pinout is 207M electrical mechanical specification compatible Table B 4 Rear Panel Remote Port Pinout Pin Connection 1 Shield 2 TX B asynchronous data in 3 RX A asynchronous data out 4 Ground 5 NC 6 Ground 7 TX A asynchronous data in 8 RX B asynchronous data out 9 Shield a See the note on DCE equipment on page 71 B 9 10Base T Port Ethernet The Ethernet port is a standard RJ 45 female jack provided for future use Ethernet communication is not current
90. ding a Second Program or Changing a Program Signal and metadata flow from this example are shown in Figure 4 2 We ll assume you receive a 5 1 channel program encoded in Dolby E and you want to create a stereo compatible mix for it and reencode both onto another Dolby E master In this case the metadata for the second program does not yet exist but you want to retain the metadata from the first program Furthermore the program configuration from the original stream must be changed because it indicates a single 5 1 program instead of the 5 1 2 configuration you are creating After you create the stereo mix you reencode the 5 1 channel program along with the stereo program using DP571 To monitor the reencoded program 1 Click the Int radio button to select an internal program configuration source and choose 5 1 2 from the drop down list in Figure 2 2 2 Select either external metadata source for Program 1 3 Click Program Select button 2 in the software Click Int to select an internal program metadata source and select the parameters for the second program metadata 28 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Troubleshooting Metadata Problems Digital Digital Router Digital Output Input Output Input DP572 DP570 DP571 Metadata Metadata Metadata Metadata Out Metadata Adjustment Change Program Config to 5 142 internal source Set parameters for new two
91. e at three levels 1 You choose a program configuration This defaults all parameters for all programs in the stream to the source you chose internal external 1 or external 2 An example of this configuration is a QC environment where the operator uses the entire metadata stream to monitor the overall audio quality 2 You choose a source for a particular program This automatically sets the default source for all parameters in the program but does not affect any of the other programs in the stream 3 Youcan choose an external source for an individual parameter which affects only that selected parameter Typically you would do this to correct a known error DolbyRemote 570 makes selecting the metadata source simple Choosing an external program configuration or program changes parameter settings automatically Individual parameters can still be changed without affecting other parameters Metadata source choices stay set until e You manually change a source choice e You receive a different program configuration 4 3 2 Using Generated Metadata When the source is internal the default values the DP570 applies are determined by the number of channels in the input as shown in Table 4 1 Table 4 1 Metadata Parameter Defaults TCU d ls ee Dialogue Level 27 27 27 27 Channel Mode 3 2 3 1 2 0 1 0 LFE Channel On Off Off Off DC Highpass Filter On On On On Lowpass Filter On On On On
92. e consumers may be using See Dynamic Range Control on page 88 for detailed information on the DRC modes 5 Using the DP570 with Other Dolby Equipment The Cat No 549 GPI O Controller provides a quick method to change downmix and compression modes while monitoring The DP570 can be used either with the DP569 Dolby Digital or DP571 Dolby E Encoders by attaching the metadata connectors and also with the Dolby Media Encoder software application 5 4 Most Important Metadata The following highest priority parameters have the greatest impact on your work We suggest you address them in this order 1 Program configuration the number of type of programs included in the Dolby Digital data stream 2 Channel mode the number of audio channels in the program set it once for each program Note Ensure that these parameters are set correctly because other parameters depend on them Dolby DP570 Multichannel Audio Tool User s Manual 45 Using the DP570 DVD Mastering Most Important Metadata Dialogue level the dialnorm parameter Compare the measured value shown in yellow numbers to the dialnorm metadata parameter value shown in green numbers periodically as you work Compression mode select one that sounds best None is not recommended as it may cause peak limiting in a consumer s decoder during downmixing For more information on compression modes see Setting Dynamic Range Control on page 34 Set it once for e
93. e same as the original passive Dolby Surround decoder without the directional steering provided by Pro Logic Matrix mode can also enhance mono programs and can be used to try to clean up weak radio signals in cars You can apply Matrix to a mono input by selecting the Lo Ro downmix and then Pro Logic II Neither Pro Logic II nor Pro Logic is available in a mono downmix Dolby DP570 Multichannel Audio Tool User s Manual 41 Using the DP570 Features Dolby Pro Logic Il Support Panorama mode sends the stereo signal to the surround speakers as well as the front Left and Right The Panorama setting is disregarded if the Pro Logic mode is anything other than Music Dimension adjusts the focus of the signal from the front speakers to the rear speakers If the Pro Logic II mode is anything other than Music the Dimension setting is read as 0 Center Center Width steers the Center output signal between the Center Left and Right outputs At 3 the Center output is sent 100 percent to the Center channel L R sends the center output equally to Left and Right with nothing sent to Center 42 Dolby DP570 Multichannel Audio Tool User s Manual Chapter 5 Using the DP570 DVD Mastering During the DVD mastering process it is important to experience the program in the same way a viewer will in the home so that you can assess the quality of the mix and make appropriate adjustments The DP570 provides a quick and accurate listeni
94. e selected Dolby E program configuration Output Channel disabled by downmix speaker selection or Channel mode parameter setting 3 5 Using the Setup Menu The initial screen of the setup menu is shown in Figure 3 6 A detailed map of all the available options is available in Front Panel Menus on page 75 DP570 Unit Setup Program Select Figure 3 6 Initial Setup Menu Screen Use the navigation buttons shown in Figure 3 2 and described in Table 3 1 to navigate the Setup menu tree The Setup menu has additional navigation routines not used on the status menu 3 5 1 Selecting Parameters Many parameter settings have a list of options from which to choose one Dialogue level for example can be set to any number between 1 and 31 In these cases the selected or active option is displayed without a flashing cursor 18 Dolby DP570 Multichannel Audio Tool User s Manual Controlling the DP570 Using the Setup Menu If the cursor is flashing after an option value that option is not currently selected Press Enter to select it Pressing Esc at an option with the flashing cursor displayed returns the display to the selected value 3 5 2 Entering Text In certain situations you will be prompted to enter text In the text entry window the first line prompts you to enter text The second line displays the current text for the parameter if no text is yet defined a default text string An underline cursor
95. e variables in both the authoring and emulator sections 4 11 Using Lt Rt Input Mode AN The DP570 provides a separate input Lt Rt for a signal encoded in Dolby Surround When you activate the Lt Rt Input mode the emulator is fed only by the Lt Rt input and the DP570 sends a Pro Logic decoded signal to your monitor system You cannot alter settings for the signal from the Lt Rt input but you can use the input to ensure that an Lt Rt mix is performing as expected Caution Changes to metadata parameters may be made while in Lt Rt Input mode but you cannot hear the effect of these changes because the emulator is dedicated to Lt Rt input signal Therefore you should not change metadata values in Lt Rt Input mode 36 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Channel Mapping and Input Routing For an example of monitoring a Dolby Surround program while creating metadata for a 5 1 channel program see Using the DP570 in Postproduction on page 53 4 12 Channel Mapping and Input Routing Table 4 3 shows how the DP570 routes input channels to emulator output channels Channel mapping changes automatically according to the program configuration and reflects how the channels will be connected to a Dolby Digital encoder The DP570 input router enables you to reroute input channels to conform to the automatically assigned channel mapping The program number 1 8 identifies the individual p
96. ed back to baseband audio and metadata The audio program and the metadata are monitored altered or re created as other elements of the program are added in preparation for broadcast This process is discussed in detail in Using the DP570 in Postproduction on page 53 This new audio program metadata pair reencoded as Dolby E data leaves the postproduction studio and passes through the television station to Master Control where many incoming Dolby E streams are once again decoded back to their individual baseband digital audio metadata programs The audio program metadata pair that is selected to air is sent to the transmission Dolby Digital encoder which encodes the incoming audio program according to the metadata stream associated with it thereby simplifying the transmission process This process is discussed in detail in Using the DP570 in Master Control on page 57 Finally the Dolby Digital signal is decoded in the consumer s home with metadata providing the information for that decoding process Through the use of metadata the mixer in the truck has been able to control the home decoder for the sporting event while segments such as news breaks commercials and station IDs are similarly decoded each using its own metadata 4 Dolby DP570 Multichannel Audio Tool User s Manual Chapter 2 Getting Started This chapter describes the actions necessary to begin using the DP570 in a basic configuration 2 1 Unpacking and I
97. equires special decoders Main Sv Karaoke K The bitstream is a special service for karaoke playback In this case the Left and Right channels contain music the Center channel has a guide melody and the Left and Right Surround channels carry optional backing vocals Line Mode Compression Profile and RF Mode Compression Profile For details of the available profiles see Dynamic Range Control Profiles on page 89 RF Overmodulation Protection This parameter is designed to protect against overmodulation when a decoded Dolby Digital bitstream is RF modulated When enabled the Dolby Digital encoder includes pre emphasis in its calculations for RF Mode compression The parameter has no effect when decoding using Line mode compression Except in rare cases this parameter should be disabled Table D 7 RF Overmodulation Protection Setting RF Overmodulation Protection Setting Enabled Disabled Center Downmix Level When the encoded audio has three front channels L C R but the consumer has only two front speakers left and right this parameter indicates the nominal downmix level for the Center channel with respect to the Left and Right channels Dolby Digital decoders use this 96 Dolby DP570 Multichannel Audio Tool User s Manual A Guide to Dolby Metadata Parameter Definitions parameter during downmixing in Lo Ro mode when Extended BSI parameters are not active Table D 8 Center Dow
98. es see Dynamic Range Control on page 88 Set it once for each program 5 Surround flag on 5 1 programs only this parameter should be set to Disabled 6 Downmix parameters set according to taste e Center downmix level Surround downmix level e Preferred stereo downmix 50 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Live Remote Broadcast Importance of Presets Lt Rt center downmix level e t Rt surround downmix level e Lo Ro center downmix level e Lo Ro surround mix level 6 6 Importance of Presets In a live broadcast situation the ability to preview metadata parameters is limited The DP570 presets are therefore very valuable Preconfigured presets for news sports or music as well as other live events provide the flexibility necessary for use during setup rehearsals and final broadcast Preset development of course can only be a product of experience but that experience can be passed on easily with the DP570 A seasoned engineer can save presets for the live events to be produced A less experienced engineer has only to select the appropriate preset for the event and is then free to focus on other issues In this situation the engineer at the live event can confirm the validity of the chosen metadata by monitoring the effects with the DP570 Dolby DP570 Multichannel Audio Tool User s Manual 51 Using the DP570 Live Remote Broadcast Importance of Presets 52
99. example in Figure 3 3 includes two programs a 5 1 mix and a two channel mix Metadata for the programs is controlled separately Metadata source in use The options are Internal Ext 1 orExt 2 Program name text which can be user entered describing the program that is selected for emulation and metadata authoring Naming Programs on page 25 explains the value of this feature Channel mode Displays the current program selection in this example a 5 1 mix Here 3 2 is the Channel mode three front channels two rear channels The L indicates that the LFE channel is also enabled Dialogue level Displays the dialogue level value for the currently selected program In this example 27 is the selected value for the dialogue level parameter See Measuring and Setting the Dialogue Level on page 30 for more information 3 4 2 Viewing Status Screens Press the up or down arrow from the main status screen to view the additional screens that provide details of the following current states Master volume Current values of individual metadata parameters Video reference Audio input User preset Errors Firmware version number AL 8 Tip The metadata parameter and error displays are multiscreen displays Use the Enter and Esc keys as described in Table 3 1 to move around in them 3 4 3 Reading the LED Indicators The LED indicators at the top of the front panel provide information about the signal input and outpu
100. he input channels thereby simplifying installation and integration into existing multichannel monitoring environments The emulator section is followed by the bass management section which provides the ability to route low frequencies to the appropriate speaker channels The output of the bass management section is sent to the digital audio emulator outputs as well as the analog monitor section if fitted Dolby DP570 Multichannel Audio Tool User s Manual Principles of Operation Overview 5 8832 5 sg 85 ES Input Meter x T 7 Output Meter Measurement EH i Measurement Point Po H Point L 1 2 1 L O LR 34 Bass AES DRC Router Xmit dialnorm Ls 4 downmix P L decode 56 Rs o bs Rs Bsl 7l8 lil pi ii Bar gt gt ae rT 12 O lt OL I O R 34 O eu lt From utput O sw x4 outputs 4 Volume n Bal 56 lt x8 O Ls Rs 78 O oO Bsr Solo Mode Router Spkr Select SSeS SS SS Lc SS SS Bal 2 Ro R Output Bal Mone Cat No 548 Analog Option Card Figure 1 1 DP570 Functional Block Diagram Dolby DP570 Multichannel Audio Tool User s Manual
101. ical Activities DP571 e _ _ Metadata Encoder i Digital gt Video Ref d i VTR DP572 DURS Doby Ep Master Server Control or Metadat Metadat Metadat etadata _ _ _ etadata Metadata _ Digital IRD Out gt Out 771 p i Inputs I 5 6 Audio Main ee 3 4 In ae Digital 3 4 y I Video Audio Outputs 9 6 DP570 I 2 Digital 1 L gl Audio Metadata _ Inputs Out l 5 6 l Video Ref 5 1 Channel Monitor ine eee gt Metadata A 5 Digital Emulator MR d 05 Outputs C SW4 OT 155 id Outputs picis sins Outputs Figure 8 1 Typical Master Control Setup 8 2 Typical Activities Within a multichannel master control environment it is necessary to experience the program both picture and audio in as close a fashion as possible to how a viewer will see it in the home The DP570 provides a quick and accurate method to emulate a viewer s listening environment so that a master control operator can respond quickly to viewer complaints or trouble with the incoming signal 8 2 1 Monitoring Downmixes A chief purpose of the DP570 in a master control environment is to provide downmixing emulation For example a master control operator can quickly assess if the ann
102. io Tool D 6 Parameter Definitions This section explains both professional and consumer metadata parameters in greater detail Metadata parameters include e Universal parameters e Extended Bitstream Information Extended BSI parameters Extended BSI parameters are active only when both the producer chooses to use them and the consumer s decoder is capable of reading them All decoders can successfully decode a 92 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Parameter Definitions metadata stream without Extended BSI parameters and Extended BSI parameters translate seamlessly to decoders that read only universal parameters Note Universal parameters include both professional and consumer metadata Table D 1 on page 85 distinguishes between professional consumer parameters D 6 1 Universal Parameters All universal parameters are supported by Dolby E encoders and decoders all except Program Configuration and Program Description Text are supported by all Dolby Digital encoders and decoders Program Configuration This parameter determines how the audio channels are grouped within a Dolby E bitstream Up to eight channels can be grouped together in individual programs where each program contains its own metadata The default setting is 5 1 2 Table D 3 shows all the available configurations Table D 3 Program Configuration Settings Program
103. ions The same mix is routed to the DP563 for downmixing to Lt Rt and then to the DP571 for encoding Lt Rt output from the DP563 is directed by a distribution amplifier to four locations 1 the Lt Rt input of the DP570 for quick and convenient monitoring 2 To the digital inputs of the DP570 for inclusion in a 5 1 2 Dolby E program 3 To the digital inputs of the DP571 for digital encoding 4 Tothe MPEG encoder for stereo audio distribution At the DP571 metadata authored in the DP570 is joined to the audio from the DP563 encoded into a Dolby E stream This stream is sent to the LM100 for metering and confidence decoding It is also input to the MPEG encoder prior to transmission Lt Rt audio from the DP563 is separately routed to the MPEG encoder as well Dolby DP570 Multichannel Audio Tool User s Manual 47 Using the DP570 Live Remote Broadcast Typical Tasks LM100 DP571 Mixing Moradata p Dolby E gt n Console gt Video Re PCM Delay D P570 Input Metadata __ 1 2 Out 3 4 Digital E 5 6 gt Audio 2 6 Thu 9 Bae 5 6 gt Inputs 7 8 gt Video Ref M P EG n Analog 3 4 gt Outputs 5 6 UR Lt Rt DP563 gt Video Mp Dist
104. ip The software display of the measured level varies widely at first but the measurement is an average level over time Leq A so the display stabilizes as the clip continues Note If the input audio level registers below 31 dBFS the Accept button is disabled as those values are not valid settings for the dialogue level parameter Below 40 dBFS the front panel display reads LOW In either case it is best to raise the source audio level and re measure the selected audio clip We do not recommend averaging multiple short term measurements either arithmetically or by summing the anti logs to come up with a long term average since each of the short term measurement values is valid only for the previous ten second period Consider a situation where the operator takes a 60 second measurement in Short term mode The measurement value displayed at the end of the period represents only the time interval from second 50 to second 60 not the entire minute Instead use the Infinite term measure and Pause function Dolby DP570 Multichannel Audio Tool User s Manual 33 Using the DP570 Features Setting Dynamic Range Control 3 The default measurement mode is Infinite Click the Infinite or Short Term button to move back and forth between the modes The software displays the level of the audio clip This level is displayed until you start a new measurement or change modes 4 Repeat these steps with each audio clip selected
105. istening position simultaneously This is accomplished by assigning delays to each speaker Measure and record the distance from the reference listening position to each of the following speakers No measurement is necessary for Back Surround speakers as this value is automatically calculated as a function of Dolby Surround e Left speaker L and Right speaker R Note The L and R speakers should be equidistant from the reference listening position Reposition them if necessary e Center speaker C e Left Surround speaker Ls e Right Surround speaker Rs measuring in metric units multiply the distance measured by three to get the lt Note The calculations below assume you measuring in feet and inches If you approximate distance in feet In the calculations that follow Lequalsthe distance from the Left speaker to the reference listening position Requals the distance from the Right speaker to the reference listening position e C equals the distance from the Center speaker to the reference listening position e S equals the shorter of the distances from Ls or Rs to the reference listening position Dolby DP570 Multichannel Audio Tool User s Manual 65 Configuring a Monitor System Setting Delay Values A 2 1 Calculating Delay Values Center Delay L minus C L C equals the Center delay setting in milliseconds For example if C is 2 feet less than L or R set Center delay to
106. ix and compression modes perhaps on a different speaker output For example you can audition current metadata settings for a 5 1 channel program in Full mode no downmix with no compression the default for the Custom selection then check the mono downmix in RF mode on the mono speaker output in one click without altering the metadata settings Once you select the listening parameters choose a preset number under User Presets and under Type choose Emulator 4 10 3 All Settings Presets To save a combination of authoring and emulator settings as a preset select All under Type when saving the preset Presets that include both authoring and emulator settings do not display any letter after the preset number on the display 4 10 4 Using Different Preset Types to Audition Settings If you are assigning metadata to a program the different preset types can be used in sequence to speed your process Example You set the emulator to Full no downmix with no compression the default for the Custom selection You then audition a few authoring presets until you find the combination that suits the program best Next you switch among the emulator presets to make sure the metadata you have selected works in a variety of downmix settings Now you know you have settings that maximize the mixing capabilities for all your potential listeners By using presets you both save time and increase the accuracy of your checking since there are multipl
107. jets remplis de liquide tels que des tasses de caf sur l appareil Pour vous assurer d un fonctionnement sans danger et de pr venir tout choc lectrique ou tout risque d incendie veillez observer les recommandations suivantes e Leselecteur de tension doit tre plac sur la valeur correspondante votre alimentation r seau e Les fusibles doivent correspondre la valeur indiqu e sur le materiel e Le materiel doit tre correctement reli la terre e Le cordon secteur livr avec le materiel doit tre cabl de la mani re suivante e Phase Brun e Neutre Bleu e Terre Vert Jaune Wichtiger Sicherheitshinweis Deutschland Dieses Ger t entspricht der Sicherheitsnorm EN60065 Das darf nicht mit Fl ssigkeiten Spritzwasser usw in Ber hrung kommen stellen Sie keine Gef e z B Kaffeetassen auf das Gerat F r das sichere Funktionieren des Ger tes und zur Unfallverh tung elektrischer Schlag Feuer sind die folgenden Regeln unbedingt einzuhalten e DerSpannungsw hler muf auf Ihre Netzspannung eingestellt sein Dolby DP570 Multichannel Audio Tool User s Manual 109 Regulatory Notices and Fuse Information Regulatory Notices e Die Sicherungen m ssen in Typ und Stromwert mit den Angaben auf dem Ger t bereinstimmen e Die Erdung des Ger tes mu ber eine geerdete Steckdose gew hrleistet sein e Das mitgelieferte Netzkabel mu wie folgt verdrahtet werden e Phase braun
108. librate the subwoofer a real time analyzer RTA is required If an RTA is not available you can approximate the settings with an SPL meter When using an RTA proper calibration requires setting the LFE channel signal sent to the subwoofer within its typical bandwidth of 25 to 120 Hz 10 dB higher than the main channels Figure A 9 shows a sample RTA display of a properly calibrated subwoofer Dolby DP570 Multichannel Audio Tool User s Manual 69 Configuring a Monitor System Assigning a Dim Setting Center channel 0 dB datum Figure A 9 Real time Analyzer RTA Display If an RTA is not available setting the LFE channel higher e g 89 dBc for the Subwoofer channel when the Center channel measures 85 dBc can give an approximate level with an SPL meter This level varies with the quality of the meter being used For future reference if calibrating the subwoofer with an RTA measure the level with an SPL meter and note the meter reading for the proper calibration Use this measured value for quick checks of the system calibration in the future A 3 10Calibrating Emulator Output If your DP570 does not include the Cat No 548 Analog Option Card calibrate your speaker system using the emulator outputs and external equipment These outputs are digital and do not have any internal adjustments 4 Assigning a Dim Setting The Dim Gain slider sets an alternate level for all speaker outputs This level is activated when you c
109. lick the Dim button shown in Figure A 10 This setting enables you to change your monitor level in one click for instance if a client walks in or you have to take a phone call then return to your master level setting by clicking Dim again If the Dim Gain setting is Off clicking Dim mutes the speakers Dim Figure A 10 Dim Button Note You can also activate the Dim level via the GPI O interface but not via the front panel buttons 70 Dolby DP570 Multichannel Audio Tool User s Manual 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 Remote Connector Table B 1 shows the pinout for the front panel RS 232 connector Table B 1 Front Panel Remote Connector Pinout Pin Connection 1 NC 2 NC 3 RX asynchronous data out 4 Ground 5 TX asynchronous data in 6 NC 7 NC 8 Sense select front panel specifications the data output pin of this port is therefore labeled RX even though asynchronous data is leaving the device through this connection The RX pin on this unit should be connected to the RX pin on Data Terminal Equipment DTE such as a PC com port Similarly the input pin on this device is labeled TX and should be connected to the TX pin on a PC or other DTE device lt Note This unit is Data Communications Equipment DCE I
110. llowing maximum control by the content producer over how the encoded bitstream is treated at each step on the way to the consumer s decoder Consumer These parameters are carried in both the Dolby E and the Dolby Digital bitstream The consumer s Dolby Digital decoder uses these parameters to create the best possible audio program possible on each consumer s playback system Consumer parameters include the DRC values which are ultimately enabled by the end user s selection as discussed in Dynamic Range Control on page 88 Both types of metadata can be examined modified or passed through during encoding Table D 1 lists the active metadata parameters and indicates whether the parameter is Professional or Consumer Table D 1 Profession and Consumer Metadata Types Metadata Parameter Professional Consumer Program Configuration x Program Description Text x Dialogue Level x Channel Mode x LFE Channel x Bitstream Mode Line Mode Compression RF Mode Compression RF Overmodulation Protection x Center Downmix Level Surround Downmix Level x Dolby Surround Mode Audio Production Information x Mix Level x Room Type Copyright Bit x Original Bitstream x Preferred Stereo Downmix x Lt Rt Center Downmix Level x Lt Rt Surround Downmix Level x Lo Ro Center Downmix Level x Lo Ro Surround Downmix Level x Dolby Surround EX Mode x A D Converter
111. ly supported B 10 Multichannel Analog Output This is a 25 pin female D connector Its pinout is similar to a Tascam DA 88 connector except that output channels are referring to speakers instead of channel numbers Table B 5 Multichannel Analog Output Pinout Pin Connection Pin Connection 1 Bsr Out 14 Bsr Out 2 Bsr Ground 15 Bsl Out 3 Bsl Out 16 Bsl Ground 4 Rs Out 17 Rs Out Dolby DP570 Multichannel Audio Tool User s Manual 73 Connector Specifications Stereo Mono Solo Analog Output Table B 5 Multichannel Analog Output Pinout Pin Connection Pin Connection 5 Rs Ground 18 Ls Out 6 Ls Out 19 Ls Ground 7 Subwoofer 20 Subwoofer Out Out 8 SW Ground 21 Center Out 9 Center Out 22 C Ground 10 Right Out 23 Right Out 11 R Ground 24 Left Out 12 Left Out 25 L Ground 13 No Connection B 11 Stereo Mono Solo Analog Output This is a 25 pin female D connector Table B 6 Stereo Mono Solo Analog Output Pinout Pin Connection Pin Connection 1 Digital Ground 14 NC 2 NC 15 NC 3 NC 16 NC 4 NC 17 NC 5 NC 18 Solo 6 Solo In R 19 SR Ground 7 Solo In L 20 Solo In L 8 SL Ground 21 Mono Out 9 Mono Out 22 M Ground 10 Right Stereo Out 23 Right Stereo Out 11 R Ground 24 Left Stereo Out 12 Left Stereo Out 25 L Ground 13 NC
112. m y Speaker Config Back Surround lt gt Back surround e gt Back Surround gt Back Surround C None One Speaker Two Speakers AEO Figure C 11 Speaker Config Submenu 80 Dolby DP570 Multichannel Audio Tool User s Manual Front Panel Menus Monitor Config Submenu C 8 2 Speaker Trims Submenu C Test Noise Off Speaker Trims Test Noise Test Noise Test Noise Pink Filtered Speaker Trims gt Speaker Select Select Speaker Select Speaker Select Speaker Select pia Stereo Mono IN E t j Speaker Trims DIOS Multichan Trim PRORA Multichan Trim Master Trim Multichan Multichan Trim 6 dB 048 Y Speaker Trims Multichan L E Multichan L Multichan L 6 dB 7 e0dB Y Speaker Trims MulichanR R MulibhhanR R gt 6 S 20 dB J MultichanC Multichan C Speaker Trims ultichan ca ultichan Multichan C 6 dB 20 dB Speaker Trims Multichan SW Multichan SW MultichanSw 3608 jJ 2098 Multichan Ls Multichan Ls Multichan Ls 6 dB 20 dB Speaker Trims Multichan Rs aware Multichan Rs Multichan Rs 6 dB 20 dB J Figure C 12 Speaker Trims Submenu Dolby DP570 Multichannel Audio Tool User s Manual 8l Front Panel Menus Status Menu C 9 Status Menu This main screen displays
113. m displays the Setup window with the Monitor tab active as shown in Figure A 2 Dolby DP570 Multichannel Audio Tool User s Manual 61 Configuring a Monitor System 0 570 Setup Monitor Analog 1 0 Dim Gain GPIO Master Trim Speaker Select Multichannel Stereo Test Noise Multichannel T rims 1 0 00098 0 00098 2 000 dB dB EEEN kEkbkk kk Sw 0 000 Emulator Bass Management X Subwoofer Crossover 80 100 2 120Hz Digital Reference Level 204 L Surround 4 000dB R Surround Back Surround L Back Surround A Assigning Monitor System Configuration Settings Analog Outputs Filtered 4 00098 0 00098 0 00098 Pro Logic Il Center Width Delay Center 0 Left Surround Om Right Surround Oms Back Surround pz Pro Logic 15ms m Panorama Enabled Disabled ms r7 Oms ier LFE Monitor Mode Auto C On Off 3 0 3 Mode Movie Music Pro Logic Matrix Dimension Unity Gain Mode Extended BSI Enable Back Surround Speakers Gain C 1 C2 Od Emulator R i 21 Sticky Settings Enable iss 3 Peah 3 0 3 Figure A 2 Monitor Setup Tab A 1 2 Selecting Analog Outputs The system automatically detects the presence of the Ca
114. menu Any adjustment you make takes effect immediately Dolby DP570 Multichannel Audio Tool User s Manual 19 Controlling the DP570 3 5 6 Analog Output Master Volume Using the GPI O Connector Press Shift Enter to access the master volume control for the optional analog outputs Use the arrow buttons to adjust the volume Press Enter to keep the current value and return to the previous menu or press Esc to restore the initial value Any adjustment you make takes effect immediately 3 6 Using the GPI O Connector You can use this port to connect the DP570 to your studio console or existing control equipment A stand alone remote control unit the Cat No 549 GPI O Controller is also available to provide easy access to the features of the GPI O port By assigning specific functions to the user definable pins you can control and obtain status from the DP570 Many functions also allow you to adapt the DP570 to your existing environment by defining the type and polarity of the input or output logic 3 6 1 Selecting GPI O Functions Table 3 6 provides a description for each function that can be assigned to GPO pins Some functions have restrictions on the polarity or trigger type The Active State column indicates the DP570 state that causes level triggered pins to be forced to the logic level indicated in the Polarity column of the table For example when the DP570 enters Emulator Bypass mode the GPO pin goes high When the
115. n Dolby Digital were first described they were generically called Bitstream Information or BSI We refer to the additional parameter definitions as Extended BSI Because the revised definitions affect metadata parameters that were not used by the consumer decoders all decoders will be compatible with the revised bitstream Newer decoders that are programmed to detect and decode the new parameters will be able to implement the new features Extended BSI provides Products that allow emulation of the effects of metadata such as the DP570 normally have a feature that allows emulation of a new or compliant decoder or a legacy decoder D 7 1 Preferred Stereo Downmix Mode This parameter allows the producer to select either the Lt Rt or the Lo Ro downmix in a consumer decoder that has stereo outputs Consumer receivers are able to override this selection but this parameter provides the opportunity for a 5 1 channel soundtrack to play in Lo Ro mode without user intervention This is especially useful on music material Table D 21 Preferred Stereo Downmix Mode Setting Preferred Stereo Downmix Mode Setting Not Indicated Lt Rt Preferred Lo Ro Preferred Dolby DP570 Multichannel Audio Tool User s Manual 101 A Guide to Dolby Metadata Extended Bitstream Information Parameters 0 7 2 LURt Center Downmix Level This parameter indicates the level shift applied to the Center channel when adding to the left and right
116. n a consumer s decoder during downmixing For more information about compression modes see Setting Dynamic Range Control on page 34 60 Dolby DP570 Multichannel Audio Tool User s Manual Configuring a Monitor System Configuring the monitor system to establish a balance between all channels and to ensure that all speakers play back at the correct level relative to the listening reference position is a complex task that must be done correctly to achieve optimal results The steps required to set up your listening environment are 1 Assigning Monitor System Configuration Settings on page 61 2 Setting Delay Values on page 65 3 Calibrating Speaker Playback Levels on page 67 4 Assigning a Dim Setting on page 70 A 1 Assigning Monitor System Configuration Settings Assigning these configurations consists of several steps Opening the Monitor Setup Tab on page 61 Selecting Analog Outputs on page 62 Choosing Bass Management Settings on page 62 Choosing Back Surround Speakers on page 64 Setting the Lt Rt Gain on page 64 Configuring Dolby Pro Logic II on page 64 9v Or ge o m A 1 1 Opening the Monitor Setup Tab the adjustments for setting up the DP570 to match your monitoring equipment are available on the Monitor tab of the Setup screen in the DolbyRemote 570 software To access this screen click the Setup button on the main screen shown in Figure A 1 Figure A 1 Setup Button The syste
117. n accord with the RS 232 B 2 Digital Audio Inputs The digital audio inputs are BNC unbalanced female connectors compliant with AES 3id 1995 5MPTE 276M specifications B 3 Digital Audio Outputs The digital audio outputs are also BNC unbalanced female connectors compliant with AES 3id 1995 SMPTE 276M specifications Dolby DP570 Multichannel Audio Tool User s Manual 71 Connector Specifications Video Ref 4 5 6 7 Video Ref The Video Ref connections are BNC unbalanced female connectors that receive NTSC composite programs or color black video Signal levels are compliant with SMPTE 154 specifications Two connectors are provided in parallel to provide loop through capability This input does not supply a clock signal to the unit but rather allows the metadata output to maintain sync with a video reference Lt Rt Inputs These are BNC unbalanced female connectors compliant with AES 3id 1995 5MPTE 276M specifications Two connectors are provided in parallel for the Lt Rt input to provide loop through capability Metadata Input Ports These ports are 9 pin female D connectors with full duplex RS 485 protocol running at 115 kbps The pinout is SMPTE 207M compatible Table B 2 Metadata Input Port Pinout Pin Connection Shield TX A asynchronous data in RX B asynchronous data out Ground NC Ground TX B asynchronous data in RX A asynchronous
118. ncreased intelligibility and decoded along with the main audio service The HI service may also be a complete mix of all program channels comprising up to six channels Assc Dialogue D This is typically a single channel program intended to provide a dialogue channel for an ME service If the ME service contains more than two channels the D service is limited to only one channel if the ME service is two channels the D service can be a stereo pair The appropriate channels of each service are mixed together requires special decoders Dolby DP570 Multichannel Audio Tool User s Manual 95 Guide to Dolby Metadata Parameter Definitions Table D 6 itstream Mode Options Bitstream Mode Setting Definition Assc Commentary C This is typically a single channel program intended to convey additional commentary that can be optionally decoded along with the main audio service This service differs from a dialogue service because it contains an optional rather than a required dialogue channel The C service may also be a complete mix of all program channels comprising up to six channels Assc Emergency E This is a single channel service that is given priority in reproduction When the E service appears in the bitstream it is given priority in the decoder and the main service is muted Assc Voice Over VO This is a single channel service intended to be decoded and mixed to the Center channel r
119. ng 69 Menus Moving Between sse 15 SUPUCTULES xiu d eee Pope ode 15 Metadata Combinations sese asea 104 Default Values eriondoa asah oeat 26 Dialogue Level eee 86 87 Dynamic Range Control Definition 88 Dynamic Range Control Profiles 89 28 Holding eet trate nnper enge 34 29 Overview neben e Bed 83 Parameter Definitions ee 92 104 Parameter List eninin 76 85 8101D h R E 26 Special Parameters 2 86 Troubleshooting 29 Metadata 83 105 Mixing Level 98 Monitor System i eed ee e oi e aes 61 Analog 2 62 Back Surround 64 Bass Management Settings 62 Computing Channel Trims 69 Delay Values ert eene 65 Digital Reference Level sss 67 Dim Setting 70 Emulator Reversion 2 64 BUR Gan ees aede apes 64 Master TEI asiste 67 Master 9 2 67 Measuring 69 Pro Logic II Configuration 64 Speaker Playback Levels 67 Subwoofer Calibration sss 69 Operation tien hit te 1 Original Bitstream
120. ng system The default is None If this not correct click either 1 or 2 A 1 5 Emulator Reversion This setting is not active in the current version A 1 6 Setting the Lt Rt Gain This is an input trim for the separate Lt Rt Input The default value is 0 dB Adjust it using the dial shown in Figure A 4 Lt Hit Gain j Liza 0 dB Figure 4 Lt Rt Gain Function A 1 7 Configuring Dolby Pro Logic Il For a discussion of these features and their uses see Dolby Pro Logic Support on page 41 To set up the DP570 for Dolby Pro Logic II 1 Selecta mode by pressing one of the buttons shown in Figure 5 The default is Movie Note Movie is the recommended mode for professional monitoring The wide range of possible choices in Music mode make it too complex and unpredictable to emulate 2 In Music mode use the sliders shown in Figure A 5 to adjust the Center Width value and Dimension values The default for both is 0 64 Dolby DP570 Multichannel Audio Tool User s Manual Configuring a Monitor System Setting Delay Values Pro Logic Il Panorama Center Width Enabled L R Disabled 3 0 3 Dimension Move _ 1 19 Music Pro Logic 3 0 3 Matrix Figure 5 Pro Logic II Controls 3 Click Enabled to turn Panorama on It is disabled by default A 2 Setting Delay Values For optimal performance signals from all the speakers should arrive at the reference l
121. ng environment emulation The instructions in this section allow you to use the DP570 to respond quickly with necessary changes and improvements 5 1 Connecting the DP570 In this scenario content is sent through the DP570 before encoding Metadata created in the DP570 is passed to the DP569 Dolby Digital Encoder DP570 DP569 DP564 1 Mi Main _ AES Audio From Digital Digital Pri Digital oui un Master Audio Router In Control 5 6 Inputs Outputs Ls Rs gt Ls Rs Ref QUE wena LL e c cc p Meta Outputs Or Optional Analog poe 100BaseT Outputs Soundcard Soundcard UR 5 1 Channel Monitor pus zl 5 di N Ls R ng LAN id 2 Serial PA Port p Ethernet PC running Dolby Digital Recorder DolbyRemote 570 and DolbyRemote 564 Software Figure 5 1 Content Creation 5 2 Typical Tasks The DP570 is used in the monitor chain to emulate a consumer s listening environment Dolby DP570 Multichannel Audio Tool User s Manual 43 Using the DP570 DVD Mastering 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 representative period of spee
122. ng the following steps to obtain an estimated Leq A value for the entire program 1 Review the program noting the locations of several representative sections where dialogue is present Cue the beginning of the first selected segment Click Reset to clear past measurements Measure the first segment then click Pause to pause measurement Cue the second segment Click Pause again to resume measurement QUOS gr m mm Continue in this fashion pausing measurement between selected segments until the program is completed Dolby DP570 Multichannel Audio Tool User s Manual 3l Using the DP570 Features Measuring and Setting the Dialogue Level This process allows you to accurately estimate the average level of all of the individual dialogue sections The term representative section indicates a shorter section of the program being measured that contains spoken dialogue levels that are representative of the speech levels found throughout the entire program Infinite mode is most often used in ingest OC and postproduction applications where audio metadata is being authored the whole piece of content is available and levels can usually be controlled and or adjusted Infinite mode should be used in automated and semi automated applications Using Short term Measurements Short term measurement mode displays the Leq A measurement value for only the previous ten second period For example the first measurement value is for the time
123. nmix Level Setting 1 000 0 0 dB 0 841 1 5 dB 0 707 3 0 dB 0 595 4 5 dB 0 500 6 0 dB 0 000 999 dB 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 Extended BSI parameters are active this parameter replaces the Surround Downmix Level parameter in the universal parameters Table D 25 Lo Ro Surround Downmix Level Settings Lo Ro Surround Downmix Level Setting 0 841 1 5 dB 0 707 3 0 dB 0 595 4 5 dB 0 500 6 0 dB 0 000 999 dB D 7 6 Surround EX Mode This parameter is used to identify the encoded audio as material encoded in Surround This parameter is only used if the encoded audio has two Surround channels An amplifier or receiver with Dolby Digital Surround EX decoding can use this parameter as a flag to switch the decoding on or off automatically The behavior is similar to that of the Dolby Surround Mode parameter Table D 26 Surround EX Mode Surround EX Mode Not Indicated Not Surround EX Dolby Surround EX Dolby DP570 Multichannel Audio Tool User s Manual 103 A Guide to Dolby Metadata Metadata Combinations D 7 7 A D Converter Type This parameter allows audio that has passed through a particular A D conversion stage to be marked as such so that a decoder may apply the complementary D A process
124. nmix Level Settings and Definitions Center Downmix Level Setting Definition 0 707 3 default The Center channel is attenuated 3 dB and sent to the Left and Right channels 0 596 4 5 dB The Center channel is attenuated 4 5 dB and sent to the Left and Right channels 0 500 6 dB The Center channel is attenuated 6 dB and sent to the Left and Right channels Surround Downmix Level When the encoded audio has one or more Surround channels but the consumer does not have surround speakers this parameter indicates the nominal downmix level for the Surround channel s with respect to the Left and Right front channels Dolby Digital decoders use this parameter during downmixing in Lo Ro mode when Extended BSI parameters are not active Table D 9 Surround Downmix Level Settings and Definitions Surround Downmix Level Setting Definition 0 707 3 default The Left and Right Surround channels are each attenuated 3 dB and sent to the Left and Right front channels respectively 0 5 6 dB Same as above but the signal is attenuated 6 dB 0 999 dB The Surround channel s are discarded Dolby Surround Mode This parameter indicates to a Dolby Digital decoding product that also contains a Dolby Pro Logic decoder for example a 5 1 channel amplifier whether or not the two channel encoded bitstream contains a Dolby Surround Lt Rt program that requires
125. nsi n correcta para su alimentaci n e Aseg rese que los fusibles colocados son del tipo y valor correctos tal como se marca en la unidad e La unidad debe ser puesta a tierra conect ndola a un conector de red correctamente cableado y puesto a tierra e de red suministrado con esta unidad debe ser cableado como sigue e Vivo Marr n Neutro Azul Tierra Verde Amarillo Viktiga Sakerhetsatgarder Sverige Denna enhet uppfyller s kerhetsstandard EN60065 Enheten far ej uts ttas for yttre averkan samt foremal inneh llande vatska s som kaffemuggar far ej placeras 110 Dolby DP570 Multichannel Audio Tool User s Manual Regulatory Notices and Fuse Information Product End of Life Information utrustningen F r att garantera s kerheten och gardera mot eventuell elchock eller brandrisk m ste f ljande observeras e Kontrollera att sp nningsv ljaren r inst lld p korrekt n tsp nning e Kontrollera att s kringarna r av r tt typ och f r r tt str mstyrka s som anvisningarna p enheten f reskriver e Enheten m ste vara jordad genom anslutning till ett korrekt kopplat och jordat el uttag e El sladden som medf ljer denna enhet m ste kopplas enligt foljande e Fas Brun e Neutral Bl e Jord Gr n Gul Belangrijk Veiligheids Voorschrift Nederland Deze unit voldoet aan de EN60065 veiligheids standaards Dit apparaat mag niet worden blootgesteld aan vocht Vanwege het
126. nspection Before unpacking the unit inspect the outer carton for shipping damage If the carton shows damage inspect the unit in those areas Several essential items are provided with the unit including Power cords for use in the United States and continental Europe A CD R containing the DolbyRemote 570 application and soft copy documentation bag containing 750 terminators rackmount screws and washers and a serial connection cable for the front panel RS 232 port Safety notices Warranty information Fill out the warranty card and return it to Dolby Laboratories lt Note maintain your eligibility for software upgrades register your product on software upgrades page at www dolbysupport com 2 2 Safety Information Before you begin installing your DP570 refer to the important safety notices and fusing information included in Regulatory Notices and Fuse Information on page 107 2 3 Installing the DP570 Operating a DP570 requires A rackspace two standard units high Venting Input connections Output connections A suitable monitoring system For information on setting up and calibrating a successful monitoring system see Configuring a Monitor System on page 61 A power connection Dolby DP570 Multichannel Audio Tool User s Manual 5 Getting Started Installing the DP570 2 3 4 Venting Dolby professional audio products are designed to operate within a temperature range of 5
127. on page 31 for more information on these modes and to understand the differences between them 7 2 3 Monitoring Downmixes Once dialnorm has been set and a measurement mode selected check downmixes and make any adjustments necessary so that the mix translates best across the appropriate listening environments A full dynamic range 5 1 mix may sound more pleasing than the same mix that is stereo or Pro Logic downmixed In some cases a compromise on downmixes must be made to ensure that the 5 1 mix remains the best lt Note Remember to prioritize your mixes Use the downmix options shown in Figure 7 3 to help create the best downmix possible from your original multichannel mix Downmix 3 Stereo Fhantom o stereo Mono PL PLI Figure 7 3 Typical Options for Monitoring Downmixes Check both compression modes on the full 5 1 mix as well as downmixes This is an important step because you cannot be certain which mode consumers may be using See Dynamic Range Control on page 88 for detailed information on the DRC modes 7 3 Using the DP570 with Other Dolby Equipment The Cat No 549 GPI O Controller provides a quick method to change downmix and compression modes while monitoring The DP570 can be used either with the DP569 Dolby Digital or DP571 Dolby E Encoders by attaching the metadata connectors Dolby DP570 Multichannel Audio Tool User s Manual 55 Using the DP570 in Postproduction Most Im
128. oring Downmixes Check downmixes occasionally and make sure the announcer and other important speech elements are not buried during stereo downmixing or Pro Logic decoding 6 3 Using the DP570 with Other Dolby Equipment The Cat No 549 GPI O Controller allows quick changes of downmix and compression modes while monitoring The DP570 can be used either with the DP569 Dolby Digital or DP571 Dolby E Encoders by attaching the metadata connectors 6 4 Using Unity Gain Mode Unity Gain mode detailed in Unity Gain Mode on page 39 allows the output of the DP570 to match preprocessed signals to simplify comparisons during the mixing process 6 5 Monitoring Metadata The following highest priority parameters have the greatest impact on your work We suggest you address them in this order 1 Program configuration the number of type of programs included in the Dolby E stream 2 Channel mode the number of audio channels in the program set it once for each program lt Note Ensure that these parameters are set correctly because other parameters depend them 3 Dialogue level the dialnorm parameter Compare the measured value shown in yellow numbers to the dialnorm metadata parameter value shown in green numbers periodically as you work 4 Compression mode select one that sounds best None is not recommended as it may cause peak limiting in a consumer s decoder during downmixing For more information on compression mod
129. ortant Metadata eee 45 Digital Television 0 4 Other Dolby 45 DVD 4 43 46 Typical Tasks 43 Live Remote 47 51 Dynamic Range Control Master Control ccceee Ie 57 60 88 Postproduction cese etii en iR deed RR 53 56 ete tacere o reto 89 Audio Production Information 98 rt iar 34 Bitstream Mode sse 95 X Emulator Bypass esses 39 Buttons Extended Bitstream Information 101 13 RO Hd M 25 42 Capabilities Front Panel Buttons see Buttons Front Panel Analog Monitoring 1 Front Panel Display Remote Control enean 1 Contrast Adjustment sss 19 Center Downmix Level eene 96 Front Panel Menus esee 75 81 Channel tct t i ida 37 Fuse Channel Mode eerte 94 Internal ioter e t t tee ee ees 112 Computing Channel Trims 69 Da SHE D ERREUR 112 Configuration Sette sudeste scatti ioo mnia 61 Fuse Information seen 111 Monitor System 61 Connections Generating Test Noise sssssssssees 68 engien ie n rantanen a iaeia gant etese n tecti id
130. ouncer s voice during a live event will be drowned out when the original 5 1 audio channels are downmixed to a stereo signal by simply selecting Stereo within the Downmix section of the remote application shown in Figure 8 2 58 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 in Master Control Typical Activities Downmix 9 Fal 3 Stereo Fhantom o Stereo Mono PL a PLI 2 Custorr Custom 00 line ustom o HF Boost 99 Figure 8 2 Downmix Options Or if a viewer complains about the audio quality on a mono television when viewing a 5 1 program the MC operator can quickly select Mono in the Downmix section and RF to emulate the viewer s listening conditions 8 2 2 Monitoring Dialogue Level When changing programs or channels refer to the dialogue level indicators to verify that the Dialogue Level value set in the software the green numbers in Figure 8 3 and the measured value the yellow numbers in Figure 8 3 of speech match 2 dB 00 00 08 nt Pause Dialogue Level _ Set C Ext C Ext2 Figure 8 3 Dialogue Level Controls If the Dialogue Level value doesn t match we recommend adjusting the overall audio level until it does Note A single program must have a single dialnorm value and this value should not change within the program Adjust audio levels to match dialnorm if necessary rather than
131. outputs as a result of downmixing to an Lt Rt output Its operation is similar to the center downmix level in the universal metadata Table D 22 Lt Rt Center Downmix Level Setting LURt Center Downmix Level Setting 1 414 43 0 dB 1 189 1 5 dB 1 000 0 0 dB 0 841 1 5 dB 0 707 3 0 dB 0 595 4 5 dB 0 500 6 0 dB 0 000 999 dB D 7 3 LURt Surround Downmix Level This parameter indicates the level shift applied to the Surround channels when downmixing to an Lt Rt output Its operation is similar to the surround downmix level in the universal metadata Table D 23 Lt Rt Surround Downmix Level Setting LURt Surround Downmix Level Setting 0 841 1 5 dB 0 707 3 0 dB 0 595 4 5 dB 0 500 6 0 dB 0 000 999 dB 0 7 4 Lo Ro Center Downmix Level This parameter indicates the level shift applied to the Center channel when adding to the left and right outputs as a result of downmixing to an Lo Ro output When Extended BSI parameters are active this parameter replaces the Center Downmix Level parameter in the universal parameters Table D 24 Lo Ro Center Downmix Level Setting Lo Ro Center Downmix Level Setting 1 414 43 0 dB 1 189 1 5 dB 102 Dolby DP570 Multichannel Audio Tool User s Manual A Guide to Dolby Metadata Extended Bitstream Information Parameters Table D 24 Lo Ro Center Downmix Level Setting Lo Ro Center Dow
132. ows you to simulate a consumer decoder with the ability to vary the amount of DRC applied This variation is to the Line mode profile you have selected Like all emulator controls it does not affect the metadata or router output streams To modify the default profile in the remote software use the drop down lists and check boxes on the Dynamic Range metadata tab 4 9 Holding Metadata The Metadata Hold button shown in Figure 4 6 allows you to repeat the selected metadata for as long as you like When you press it the DP570 holds the metadata for the current frame and repeats it in each frame until you click the button again to turn the feature off Metadata Hold Figure 4 6 Metadata Hold Button 34 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features User Presets 4 10 User Presets You can save system settings in up to 32 separate presets for quick recall in the Setup User Presets window shown in Figure 4 7 You can store authoring only subsets emulator only setting subsets and combinations that recall both emulator and authoring settings at once Authoring only presets marked with an A after the number include e Dolby E program configuration e All metadata parameters for each program The source for each metadata parameter Emulator only presets marked with an after the number include e DRC and downmix modes e Speaker system choice e Bass management e Router setting
133. pass on page 39 skipping most processing 3 2 Menu Structures The DP570 front panel displays one or the other of two separate menu structures e The panels of the status menu which display the current status of the unitbut do not allow changes The Setup menu which allows you to change the way the unit operates A i Tip When you operate the DP570 using the front panel take care to note whether you ANS are using the Setup or status menu and memorize the methods of moving from one to the other 3 3 Moving Between Menus Moving between the two menus is simple To move from the status menu to the Setup menu press the Setup button To move from the Setup menu back to the status menu press Shift then Setup 3 4 Monitoring Status Using the Front Panel The front panel status menus give you comprehensive information about the current state of the unit 3 4 1 Reading the Default Status Display The default display when the unit powers up is the top screen of the status menu shown in Figure 3 3 Dolby DP570 Multichannel Audio Tool User s Manual 15 Controlling the DP570 Monitoring Status Using the Front Panel 154 2 Internal 3 Prog 1 43 2L 27 Figure 3 3 Default Status Menu Screen The main status display includes five elements 1 Program configuration can contain any of the supported program configurations listed in Program Configuration Settings on page 93 The
134. portant Metadata 7 4 Most Important Metadata The following highest priority parameters have the greatest impact on your work We suggest you address them in this order 1 Program configuration the number of type of programs included in the Dolby E stream 2 Channel mode the number of audio channels in the program set it once for each program Note Ensure that these parameters are set correctly because other parameters depend on them 3 Dialogue level the dialnorm parameter Compare the measured value shown in yellow numbers to the dialnorm metadata parameter value shown in green numbers periodically as you work 4 Compression mode select one that sounds best None is not recommended as it may cause peak limiting in a consumer s decoder during downmixing For more information on compression modes see Setting Dynamic Range Control on page 34 Set it once for each program 5 Surround 3 dB flag Set this according to the setting of the original mixing room Typically this flag is enabled when a mix was balanced on a theatrical dubbing or mixing stage where the surround channels were SPL adjusted to 82 and the main speakers were SPL adjusted to 85 6 Downmix parameters set according to taste e Center downmix level e Surround downmix level e Preferred stereo downmix Lt Rt center downmix level e t Rt surround downmix level e Lo Ro center downmix level e Lo Ro surround mix level 56 Dolby DP570
135. pter 4 Using the DP570 Features 4 1 Naming Programs aree eerte eee eee eee dee are une pe eee e creda eaput dedu 25 4 2 Adjusting the Monitor 25 4 3 Generating and Adjusting Metadata sss enne 25 4 3 1 Choosing the Source of Metadata ener nen 26 4 3 2 Using Generated 26 4 3 3 Using External oe me ote ee pte Seat 28 4 4 Troubleshooting Metadata Problems sse eene 29 4 5 Outputting Metadata ec aate inerte ge vede bee dcr aa adeo abe 29 4 6 Monitoring 30 4 7 Measuring and Setting the Dialogue 1 nennen 30 4 7 1 Identifying Normal or Average Level Program 30 4 7 2 Measuring the Average Loudness of Identified 31 4 8 Setting Dynamic Range Control esses 34 4 9 Holding Metadata 2 n n tute e Ee 34 4 10 User 35 4 10 1 Authoring Only 35 4 10 2 Emulator Only 0000 enne nn 36 4 10 3 All Settings 5
136. puts and possibly six speaker level outputs In all of these cases a Dolby Digital decoder creates the analog audio output signal In the case of the set top box or DVD player the analog stereo output is a downmixed version of the Dolby Digital data stream The digital output delivers the Dolby Digital data Dolby DP570 Multichannel Audio Tool User s Manual 91 Guide to Dolby Metadata Parameter Definitions 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 of two different stereo downmixes One type is a stereo compatible Dolby Surround downmix of the multichannel source program that is suitable for Dolby Surround Pro Logic decoding This kind of downmix is also called Pro Logic or Left total Right total Lt Rt The other type is a simple stereo representation called Left only Right only or Lo Ro suitable for playback on a stereo hi fi or on headphones and from which a mono signal is derived for use on an RF Antenna output The difference between the downmixes is how the Surround channels are handled The Lt Rt downmix sums the Surround channels and adds them in phase to the Left channel and out of phase to the Right channel This allows a Dolby Surround Pro Logic decoder to reconstruct the L C R S channels for a Pro Logic home theater The Lo Ro downmix adds the Left and Right Surround channels discretely to the Left and Right
137. ribution Amplifier un Ed n L Ls Rs id 2 Figure 6 1 Typical Live Remote Transmission Setup 6 2 Typical Tasks A chief purpose of the DP570 in a live remote environment is to provide downmixing emulation which includes the ability to invoke what is commonly referred to as Late Night mode in consumer home theater equipment For example you can quickly assess if the announcer s voice during a live event will be drowned out when the original 5 1 audio channels are downmixed to a stereo signal by simply clicking Stereo and RF for Late Night mode emulation in the Downmix section of the remote application as shown in Figure 6 2 48 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Live Remote Broadcast Typical Tasks Downmix 9 3 Stereo Fhantom o Stereo Mono PL a PLI 2 Custom Custom 00 Line DN ustom Hr Boost 99 Figure 6 2 Downmix Parameters Further you can assess whether the announcer s voice will survive during a Pro Logic or Pro Logic decode from a stereo downmix by selecting Pro Logic while downmixing to stereo While assessing the mix during downmixing the mixer can make adjustments in order to ensure that the 5 1 mix provided will sound good in all manner of home environments from mono to stereo to 5 1 6 2 1 Measuring and Setting Dialogue Level Decide on a Dialogue Level
138. rograms associated with each channel So the entry 2 25 means Program 2 Center channel Program 2 Surround channel Table 4 3 Input Channel Routings 1 2 3 4 5 6 7 8 51 2 1L 1R 1C 1LFE 1Ls 1Rs 2L 2R 5 1 2 1 1L 1R 1C 1LFE 1Ls 1Rs 2C 3C 4 4 1L 1R 1 15 2 25 2L 2R 442x2 1L 1R 1C 1S 3L 3R 2L 2R 4 2 2 1 1L 1R 1 15 3C AC 2L 2R 4 4 1 1L 1R 1 15 4 5 2C 3C 4x2 1L 1R 3L 3R AL AR 2L 2R 3 2 2 1 1L 1R 3L 3R 4 5 2L 2R 2 2 4 1 1L 1R 3C 4C 5C 6C 2L 2R 2 6 1 1L 1R 4C 5C 6C 7C 2C 3C 8x1 3cac sc c 7 5 1 1L 1R 1C 1LFE 1Ls 1Rs None 4 2 1L 1R 1 15 2L 2R 4 2 1 1L 1R 1C 1S None 2C 3C 3x2 1L 1R 3L 3R None 2L 2R 2 2 2 1 1L 1R 3C 4C None 2L 2R 2 4x1 4C bC None 2 6 1 1 2 3C AC 5C 6C None 4 1L 1R 1 15 2 2 1L 1R None None 2L 2R 2 2 1 1L 1R None None 2C 3C 4x1 1C 2C 3C 4C None None Dolby DP570 Multichannel Audio Tool User s Manual 37 Using the DP570 Features Using an External Shaft Encoder to Control Master Volume Note The only four channel mode supported is 3 1 If you wish to use 2 2 channel mode we recommend setting the program configuration to 5 1 and muting the unnecessary channels The DP570 input router enables you to reroute input channels to conform to the automatically assigned channel mapping The input router i
139. s e LFE monitor mode The third type all includes both authoring and emulator settings Setup User Presets Recall 1E Full 5 1 2E Late Nite TV Dwnmix 4E Gamer 5 1 5A DvDAuh amp A NetAudo 7A Net udo2 _ 8A Movel Movie 2 104 Film Fest 1 11A Film Fest 2 12A PRESET 12 13A PRESET 13 144 PRESET 14 154 PRESET 15 164 PRESET 16 17A PRESET 17 18A PRESET 18 194 PRESET 19 20A PRESET 20 21A PRESET 21 22A PRESET 22 234 PRESET 23 24A PRESET 24 __25 5 25 264 PRESET 26 27 PRESET 27 28A PRESET 28 29 PRESET 23 30A PRESET 30 PRESET 31 324 PRESET 32 Save Close Figure 4 7 User Preset Window 4 10 1 Authoring Only Presets Saving an authoring only preset allows you to test certain combinations of metadata settings you find useful without altering your emulator settings Or you can save settings for different program types series episodes or even stadiums that you work in Recalling authoring presets that apply metadata combinations you know well can save you time Storing authoring presets lets you compare these combinations without affecting your emulation settings Dolby DP570 Multichannel Audio Tool User s Manual 35 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 downm
140. s active even when Emulator Bypass is enabled The Setup Router window in the DolbyRemote 570 allows you to view or change router settings To open the window click Router on the application button bar You can also resave and rename the factory input router presets The factory presets shown in Table 4 4 match existing conventions for multichannel media channel order Preset 1 works with a tape conforming to SMPTE Standards 320M and 320M A Preset 3 works with a tape conforming to SMPTE Standard 320M B Table 4 4 Default Router Presets Digital Preset 1 Preset 2 Preset 3 Preset 4 Input Output Output Output Output al at B amp B wf wm olni atl wf mm al a Nn w e yn al of ajl olni wl al al nmm 4 13 Using an External Shaft Encoder to Control Master Volume The master volume function is available on DP570s that have the Cat No 548 Analog Option Card installed The GPI O port has three pins that allow control of master volume remotely by using a shaft encoder Table 4 5 describes the interface Table 4 5 Shaft Decoder Signal Descriptions Signal Pin Description Shaft 1 21 Shaft encoder input Two square waves in a quadrature phase relationship Shaft 0 20 Shaft 0 leads Shaft 1 by 90 degrees volume increases Shaft 0 lags by 90 degrees volume decreases Shaft Present 22 Ground this pin to activate control via
141. ser s Manual 89 Guide to Dolby Metadata Downmixing e Film Standard Max Boost 6 dB below 43 dB Boost Range 43 to 31 dB 2 1 ratio Null Band Width 5 dB 31 to 26 dB Early Cut Range 26 to 16 dB 2 1 ratio Cut Range 16 to 4 dB 20 1 ratio e Music Light No early cut range Max Boost 12 dB below 65 dB Boost Range 65 to 41 dB 2 1 ratio Null Band Width 20 41 to 21 dB Cut Range 21 to 9 dB 2 1 ratio e Music Standard Max Boost 12 dB below 55 dB Boost Range 55 to 31 dB 2 1 ratio Null Band Width 5 dB 31 to 26 dB Early Cut Range 26 to 16 dB 2 1 ratio Cut Range 16 to 4 dB 20 1 ratio e Speech Max Boost 15 dB below 50 dB Boost Range 50 to 31 dB 5 1 ratio Null Band Width 5 dB 31 to 26 dB Early Cut Range 26 to 16 dB 2 1 ratio Cut Range 16 to 4 dB 20 1 ratio e None No DRC profile selected The dialogue level parameter dialnorm is still applied These choices are available to the content producer for both Line mode and RF mode The content producer chooses which of these profiles to assign to each mode when the consumer or decoder selects a DRC mode the profile chosen by the producer is applied In addition to the DRC profile metadata can limit signal peaks to prevent clipping during downmixing This metadata known as overload protection is inserted by the encoder only if necessary For example consider a
142. speaker channels respectively This preserves the stereo separation for stereo only monitoring and produces a mono compatible signal In all downmixes the LFE channel is not included On most home equipment the consumer can use the product s user interface to choose the appropriate stereo output for his playback system The mono signal feeding the RF Antenna output is usually derived from the Lo Ro downmix There are separate metadata parameters that govern the Lo Ro and Lt Rt downmixes Certain metadata parameters allow the engineer to select how the stereo downmix is constructed and which stereo analog signal is preferred but Lt Rt is the default selection in all consumer decoders See Parameter Definitions on page 92 for the definition of individual parameters During downmixing as we have seen the adjustment of Dynamic Range Control parameters is limited Broadly speaking the stereo outputs use the Line mode compression profile while the mono signal uses RF mode compression As with dynamic range control downmixing is ultimately dependent upon each consumer s unique listening environment While the engineer must optimize the multichannel mix for reproduction in an ideal listening environment it is also important to preview the mix in downmixing conditions to ensure compatibility with different playback systems when selecting the downmixing metadata parameters These previews can be achieved in real time using the DP570 Multichannel Aud
143. sss 99 Pitch Sift siii ao tnde 86 Post Production Connecting the 570 sss 53 Most Important Metadata eee 56 Other Dolby 55 Typical Activities sonari ipro iis 54 Postproduction sss 53 56 Preferred Stereo Downmix Mode 101 Presets c a ve e open 35 36 Pro Logic 1L anaes a n E EP 41 Program Configuration sss 10 93 Program Description sese 93 Program IName 4 suada eet ere ieia 25 Regulatory Notices 107 Remote Operation Beginning and Ending 8 8 RF Overmodulation Protection 96 Room eee itr e 98 Set p Menus t 18 20 Entering Text 19 oo MC 19 GPI O Setup Submenu sess 79 I G Control nente terere 78 Measure Control sese 76 Metadata Params eee 76 Monitor Config 80 Monitor Control ine d 77 Pro Logic II Submenu esses 77 Program Config sse 75 Router Config Submenu sss 79 Selecting Parameters sss 18 Speaker Config 80 Speaker Trims Submenu s 81 Topileyel 75 User Presets zu iie nemore 78 Shaft EnCOG E 38 Solo Inpu
144. t Dolby DP570 Multichannel Audio Tool User s Manual Controlling the DP570 Monitoring Status Using the Front Panel Basic Status Indicators The indicators shown in Figure 3 4 display the basic status information listed in Table 3 4 Lt Rt Metadata Delay Input Solo Input Remote V Ref Fault Error O O O OOO OO O 1 2 Figure 3 4 Basic LED Indicators Table 3 3 Basic Status Indications LED Indication and Meaning Delay This LED is not active in this version LURt Input Green Lt Rt Input mode is active Off Inactive Solo Green Solo input function is active Off Inactive Metadata Input There are separate indicators for inputs 1 and 2 Green Signal is locked and valid Red Invalid signal while unit is in External Metadata mode Off Unit is not in External Metadata mode Remote Green Remote is active Red Communication problem Off Remote is not activated V Ref Green Signal is locked Red No signal or invalid signal Check for proper termination Fault Red A hardware fault Off No fault Error Red Error condition Off No errors This LED is activated when No signal is locked to the AES 1 2 input The metadata source is set to external and there is no external signal The metadata source is set to external and the external vsynch is not valid External metadata is not valid Channel Status Indicators The indicators in Figure 3
145. t Mode 39 RE 67 Measuring sioe eate 69 Status 4 4 1011 15 Status Men 82 Sticky Settings 40 Subwoofer Calibration 69 114 Dolby DP570 Multichannel Audio Tool User s Manual Surround 3 dB Attenuation eene 100 Surround Downmix Level 97 Surround EX 103 Surround Phase 100 System Requirements 2 7 Target 9PE assueta 67 Trr ecode 5 3 etii ise eb p iste 86 Unity Gain Mode eee 39 5 adit nter needs 6 Dolby DP570 Multichannel Audio Tool User s Manual 115
146. t No 548 Analog Outputs Card and checks the Analog Outputs box when it is present Uncheck the box if you do not wish to use them If you uncheck the box all the settings in this area will be grayed out and unavailable A 1 3 Choosing Bass Management Settings If you have a 5 1 channel monitor system with full range speakers at every channel and a subwoofer you may not need to use bass management and can leave this feature at the factory default None When no bass management is selected only the LFE channel is sent to the subwoofer If you have any other speaker configuration you should choose appropriate settings for Bass Management Subwoofer Crossover and LFE Monitor Mode Use the controls shown in Figure A 3 For example e If your monitoring system consists of five satellite speakers and a subwoofer you can redirect the low frequencies from the five main channels to the Subwoofer output 62 Dolby DP570 Multichannel Audio Tool User s Manual Configuring a Monitor System Assigning Monitor System Configuration Settings e Ifyou have small Center and Surround speakers direct the low frequencies from those channels to the Left Right or Subwoofer outputs e If no subwoofer is available redirect the LFE channel to the Left and Right channel decoder outputs Bass Management This option determines how low frequencies are directed in the monitor system The choices are listed in Table A 1 Table A 1 Bass Management Op
147. t block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for the replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Unplug this equipment during lightning storms or when unused for long periods of time Dolby DP570 Multichannel Audio Tool User s Manual 107 Regulatory Notices and Fuse Information Regulatory Notices 13 On some equipment the appliance coupler power cord is used as the mains disconnect device and should be readily accessible and free from obstacles 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has
148. the other way around In most cases short term measurements are best as they provide a measurement over a ten second period of program audio and do not average the measurement over a long period of time For more information on the measurement modes see Measuring the Average Loudness of Identified Clips on page 31 Dolby DP570 Multichannel Audio Tool User s Manual 59 Using the DP570 in Master Control Using Unity Gain Mode 8 3 8 4 8 5 Using Unity Gain Mode Unity Gain mode should be off to best emulate a consumer s listening experience To compare between off air for example consumer emulation and preview signals Unity Gain mode may be enabled Refer to Unity Gain Mode on page 39 for more information Using the DP570 with Other Dolby Equipment The Cat No 549 Dolby GPI O Controller provides a quick method to change downmix and compression modes while monitoring Most Important Metadata We suggest monitoring these highest impact metadata parameters in priority order 1 Program configuration the number of type of programs included in the Dolby E stream 2 Channel mode the number of audio channels in the program set it once for each program amp Note Ensure that these parameters are set correctly because other parameters depend on them 3 Dialogue level the dialnorm parameter Compression mode any mode other than None is acceptable None is not recommended as it may cause peak limiting i
149. tion Polarity Trigger Active State Description Bs speaker mute Either Either Mute Indicates Mute is active Speaker Select Either Either Speaker selected Indicates which speaker is selected Multi Stereo Mono Program Select 1 8 Either Either Enabled Indicates which program is selected Preset Select 1 32 Either Either Enabled Indicates which preset is selected Downmix Mode Either Either Enabled Indicates which mode is selected Full Stereo Mono Phant 3 Stereo Dynamic Range Either Either Enabled Indicates which compression mode is Control Mode selected Line RF Custom Reference Level Either Level 0 Indicates Master Volume 0 dB a Not available in units without the Cat No 548 Analog Option Card Table 3 7 provides a description for functions that can be assigned to GPI pins Some functions have restrictions on the polarity or trigger type GPI functions that are mutually exclusive must be edge triggered The Active State column indicates the DP570 state that results when the pin is forced to the logic level indicated if it is level triggered Table 3 7 GPI Functions Available Multi Stereo Mono Function Polarity Trigger Active State Description V Ref Either Either V Ref error No signal or invalid signal Check for proper termination Metadata in 1 Either Either Metadata error Invalid signal while unit is in External Metadat
150. tions Options None C S LFEL R SRND LFE gt L R CNTR LFE gt L R CNTR SRND gt L R LFE gt L R SURROUND gt L R CENTERL R L C R S gt SW CNTR SRNDSW SURROUND SW CENTERSW Subwoofer Crossover The setting for the Subwoofer Crossover frequency depends on the capability of the speakers from which you are diverting low frequencies 80 Hz 100 Hz or 120 Hz If those speakers are particularly small choose the highest frequency 120 Hz This not only produces better response from your system but also protects small speakers from damage Recommonded crossover points are also commonly provided in the documentation from speaker manufacturers LFE Monitor Mode This system determines whether the unit monitors an LFE channel The default is Auto this means that the unit handles the LFE exactly like a consumer decoder does Other options are On the system always plays back any existing LFE from the LFE output and Off the system never does Dolby DP570 Multichannel Audio Tool User s Manual 63 Configuring a Monitor System Assigning Monitor System Configuration Settings Bass Management Center Surround LFE gt L Subwoofer Crossover 80 100Hz 120Hz LFE Monitor Mode Auto On Off 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 your monitori
151. to adjust the volume control The Scale The scale used in the Dialogue Level setting ranges 1 dB steps from 1 to 31 dB Contrary to what you might assume at first a setting of 31 represents no level shift in the consumer s decoder and 1 represents the maximum level shift Here s why Dolby Digital consumer decoders normalize the average output level that is the output level averaged over time using the equivalent loudness method Leq A to 31 dBFS 31 dB below 0 dB full scale digital output by applying a shift in level based on the Dialogue Level parameter setting Note The 31 dBFS Leq A should not be confused with the station reference level often 18 or 20 dBFS It is common to have different Leq A values for program material that has the same reference level An average loudness level of 31 dBFS Leq A is quite compatible with facilities running at a variety of reference levels When a decoder receives an input signal with a Dialogue Level setting of 31 it applies no level shift to the signal because this indicates to the decoder that the signal already matches the target level and therefore requires no shift In contrast a louder program requires a shift to match the 31 dB standard When the Dialogue Level parameter setting is 21 the decoder applies 10 dB level shift to the signal When the setting is 11 it applies 20 dB level shift and so on A Simple Rule 31 Dialogue Level value
152. u will monitor The DP570 supports 22 program configurations shown in Program Configuration Settings on page 93 The number of channels in the selected program configuration affects the default metadata applied by the DP570 2 B i 2 Take care to select the program configuration that matches your input exactly To set the Program Configuration choose the appropriate one from the drop down list shown in Figure 2 2 This area is also where you choose a source for the program configuration Int meaning internal the DP570 detects it or Ext1 or meaning it is derived from one or the other of the external metadata inputs 10 Dolby DP570 Multichannel Audio Tool User s Manual Getting Started Selecting a Program Configuration Program Configuration Int C Ext 51 2 Y Figure 2 2 Program Configuration Selector Dolby DP570 Multichannel Audio Tool User s Manual Getting Started Selecting a Program Configuration 12 Dolby DP570 Multichannel Audio Tool User s Manual Chapter 3 Controlling the DP570 As shown in Figure 3 1 you can control the DP570 in three ways e Directly by pushing buttons on the front panel of the unit e Remotely using the DolbyRemote 570 software over a serial connection to a PC e Remotely using a hardware remote panel connected to the unit GPI O connector Note Direct control and remote control using DolbyRemote 570 are mutually exclusive
153. uation Setting Enabled Disabled Surround Phase Shift The default setting is Enabled which causes the Dolby Digital encoder to apply a 90 degree phase shift to the Surround channels This allows a Dolby Digital decoder to create an Lt Rt downmix simply For most material the phase shift has a minimal impact when the Dolby 100 Dolby DP570 Multichannel Audio Tool User s Manual Guide to Dolby Metadata Extended Bitstream Information Parameters Digital program is decoded to 5 1 channels but it provides Lt Rt output that can be decoded with Pro Logic to L C R S if desired Note This parameter should always be turned off when you are working with steady state tones for testing purposes calibration discs for example Otherwise we recommend that you leave this parameter enabled for normal program material to avoid problems with problems with the analog outputs of set top boxes Table D 20 Surround Phase Shift Setting Surround Phase Shift Setting Enabled Disabled D 7 Extended Bitstream Information Parameters In response to requests from content producers Dolby Laboratories modified the definitions of several metadata parameters from their original definition as described in ATSC document A 52 The revised definitions allow more information to be carried about the audio program and also allow more choices for stereo downmixing When the metadata parameters carried i
154. ult to match the dialogue level from section to section In these cases while the dialogue level indicators on the DP570 can help your ears are the best tool to achieve the best balance In most cases short term measurements are best for monitoring during editing as they provide a measurement over each ten second period of program audio and do not average the measurement over a long period of time For a longer section of program that will be played back once an infinite measurement can be used as it will integrate the measured value of the signal until the meter is manually reset and over the single pass will return the average level of the program presumably speech content for that section For more information on the measurement modes see Measuring the Average Loudness of Identified Clips on page 31 For 5 1 programming measure the Center channel as most of the important speech content occurs in this channel For stereo programs measure both the Left and Right channels 7 2 2 Monitoring the Dialogue Level As you work check the dialogue level indicator the yellow numbers shown in Figure 7 2 frequently Once a Dialogue Level value has been selected either short term or infinite measurements can be used depending on your preference See Measuring the Average Loudness of 54 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Postproduction Using the DP570 with Other Dolby Equipment Identified Clips
155. und Level Meters Leq A and includes the addition of two distinct measurement modes relating to the measurement period itself infinite and short term This section describes the behavior of both modes Note These changes harmonize both the core measurement algorithm and the measurement modes between the DP570 and the Dolby LM100 Broadcast Loudness Meter Dialogue Intelligence however is available only in the LM100 IMPORTANT NOTE REGARDING MEASUREMENT ACCURACY Leq A based measurements are most accurate when they cover signals with similar spectra such as dialogue the more similar the spectra the more accurate the measurement This is why we recommend the use of Leq A measurements to provision the dialogue level value within Dolby E and Dolby Digital bitstreams The DP570 measurement feature will yield best results when the operator measures portions of the program that contain only minimal nondialogue material Using Infinite Measurements Infinite measurement mode conforms to the specifications of IEC 60804 2000 10 In this mode the calculated value is the long term A weighted level Leq A integrated over the entire period since the measurement was last reset Infinite mode is typically used to measure the entire duration of the program or several long sections of a program to find the long term A weighted level Since Dialogue Intelligence is available only in the Dolby LM100 Broadcast Loudness Meter we suggest usi
156. unit is no longer in Bypass mode the pin goes low Table 3 6 GPO Functions Available Function Polarity Trigger Active State Description V Ref Either Either V Ref error No signal or invalid signal Check for proper termination Metadata in 1 Either Either Metadata error Invalid signal while unit is in External Metadata mode Metadata in 2 Either Either Metadata error Invalid signal while unit is in External Metadata mode Emulator bypass Either Either Bypass Indicates Bypass is active Delay LED Either Either On Not yet implemented Lt Rt input Either Either Enabled Indicates Lt Rt input is active Dim mute Either Either Enabled Indicates Dim Gain setting is active Surround Either Either EX on Indicates Surround EX is active Pro Logic Either Either Pro Logic on Indicates Pro Logic is active L speaker mute Either Either Mute Indicates Mute is active R speaker mute Either Either Mute Indicates Mute is active C speaker mute Either Either Mute Indicates Mute is active SW speaker mute Either Either Mute Indicates Mute is active Ls speaker mute Either Either Mute Indicates Mute is active Rs speaker mute Either Either Mute Indicates Mute is active 20 Dolby DP570 Multichannel Audio Tool User s Manual Controlling the DP570 Using the GPI O Connector Table 3 6 GPO Functions Available Func
157. utputs are affected by metadata changes you make in the DP570 and should only be used to send a signal to the monitoring system Connect them to your own D A converter if you are monitoring without using the Cat No 548 Analog Option Card 2 3 4 Making the V Ref Connection Connect the V Ref signal to either of the two jacks on the rear panel Use the second jack either to pass the signal to the next device in the chain or to terminate it with a 750 impedance on the last device in the signal chain Dolby DP570 Multichannel Audio Tool User s Manual Getting Started Installing the Remote Software If there is no video inputor the video input fails the DP570 generates a default frame based on 1 536 samples at the current audio clock rate to match Dolby Digital frame rates For a discussion of the connector types used for the V Ref connection on the DP570 see Connector Specifications on page 71 2 3 5 Making a Power Connection The DP570 contains a 90 264 VAC 50 60 Hz auto sensing power supply 40W maximum designed to operate from a centrally switched power source The power cord supplied with the unit is six feet long 2 4 Installing the Remote Software Once power is applied the DP570 will display the main status screen We strongly recommend that you continue on to install the remote management software DolbyRemote 570 provides quick access to the DP570 s functions including some that are not available from the DP57
158. value for the broadcast and refer to the dialogue level indicators during periods of representative speech during the show The measured value from program material appears in yellow numbers 26 in Figure 6 3 The Dialogue Level value set in the software appears in green numbers 27 in Figure 6 3 Dialogue Level Set 00 00 08 Figure 6 3 Dialogue Level Controls To change the value in the software press the Accept button The system will transfer the number appearing in the measured value window to the dialnorm value window and set the parameter automatically In most cases short term measurements are best for live mixing as they provide a measurement for each ten second period of program audio For more information on the measurement modes see Measuring the Average Loudness of Identified Clips on page 31 For 5 1 programming measure the Center channel as most of the important speech content occurs here For stereo programs measure both the Left and Right channels Dolby DP570 Multichannel Audio Tool User s Manual 49 Using the DP570 Live Remote Broadcast Using the DP570 with Other Dolby Equipment 6 2 2 Monitoring the Dialogue Level As you work check the dialogue level indicators the yellow numbers shown in Figure 6 3 frequently Make adjustments to the mix to keep the dialogue level value during periods of representative speech within a few decibels of your target 6 2 3 Monit
159. without losing the settings you had chosen for the original program When you disable Sticky Settings settings for these monitoring modes do not change when you leave one program to monitor another By default Sticky Settings is enabled To turn it off uncheck the box 4 18 LURt Gain Function This control allows you to control gain of the Lt Rt input To trim the Lt Rt input level in the DolbyRemote 570 1 Click Setup in the Main window to open the Setup window 2 Usethe up and down arrows to increase or decrease the default Lt Rt gain Figure 4 9 shows the Lt Rt Gain control on the Setup window Lt Rt Gain OdB Figure 4 9 Lt Rt Gain Control 4 19 Dim Function The Dim button enables you to change your monitor level with one click Click it for instance if a client walks in or you have to take a phone call Return to your master level setting by clicking Dim again 4 20 Master Trim and Master Volume The Master Trim slider allows you to raise or lower the volume of the signal input to the DP570 before processing begins This capability is very useful in listening environment calibration process 40 Dolby DP570 Multichannel Audio Tool User s Manual Using the DP570 Features Dolby Pro Logic Il Support The master Volume slider allow you to raise or lower the volume of all the outputs simultaneously Master Trim Volume z E 6 dB 1 10 dB 4 IT i 458 30 dB EN KE
160. xes The DP570 allows you to audition various downmixes before finalizing the content Previewing downmix conditions is essential in providing the best possible audio quality in listening environments with fewer speakers Select a Downmix mode and make necessary adjustments to the metadata or the source mix accordingly You can set up separate sets of speakers for different downmix conditions sending a stereo downmix to the left and right speakers in your 5 1 listening environment then to a different set of stereo speakers just by changing your speaker selection setting It is a good idea to have a low grade alternate speaker configuration set up to monitor the stereo and mono downmixes to make sure program content plays appropriately in fidelity challenged environments To monitor the various downmixes in the DolbyRemote 570 application click any of the buttons shown in Figure 4 3 then adjust settings on the metadata tabs as necessary Downmix Full 3 Stereo Phantom Stereo Mono PL PLII Figure 43 Downmix Options 47 Measuring and Setting the Dialogue Level 4 7 1 The dialogue level parameter also known as dialogue normalization or dialnorm is a vital element in audio content creation The proper dialogue level value ensures that the consumer hears different programs at the same level See Dialogue Level on page 86 for a detailed explanation of the dialogue level parameter The dialogue level for each progr
161. y useful when mixing or producing a program These operators are capable of managing overall program loudness by continuously reading and interpreting the short term measure Table 4 2 lists several example applications for both measurement modes Table 4 2 Measurement Mode Applications Short term Infinite Live broadcast event Program ingest Postproduction and or mixing with Postproduction to check conformance with audio engineer delivery requirements including dialogue normalization value Quality control measuring short term Quality control measuring overall program program dynamics for normalization and or dialogue normalization provisioning purposes Note The measurement function used in the following procedures is designed to measure dialogue only Programs without dialogue such as an all music program still require a careful setting of the dialogue level parameter When setting the parameter for such content it is useful to compare the program to the level of other programs The goal is to allow the consumer to switch to your program without having to adjust the volume control To measure dialogue level using the remote software use the controls shown in Figure 4 4 for these steps 1 Usethe Channel Select control to choose a channel or channels to measure The choices are Left Right Stereo Center and 2 Play the audio clip The DP570 begins measuring the level of the audio cl
162. you assign a function to the pin you have selected GPI Setup Input pins 23 36 in Figure 3 7 and Table 3 8 are user defined To define a function for an input pin enter the GPI Setup menu inthe System Settings section of the Setup menu use the arrow buttons to select the pin number you wish to define and press Enter Three submenus are available Trigger Polarity and Function Trigger defines the type of signal the pin requires and can be set to Level or Edge If set to Level the pin is triggered by a constant level if set to Edge the pin requires a pulse of 100 ms minimum duration Polarity can be set to Positive High or Negative Low Edge triggered signals are either positive or negative Level triggered signals are either high or low Dolby DP570 Multichannel Audio Tool User s Manual 23 Controlling the DP570 Using the GPI O Connector The Function menu lets you assign a function to the pin you have selected 24 Dolby DP570 Multichannel Audio Tool User s Manual Chapter 4 Using the DP570 Features 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 play it back over any combination of speaker outputs using any combination of metadata parameters This main power is backed up by its ability to adjust virtually any of those variables on the fly As you listen you can test your mix in different numbers and qualities of
163. you need to change it 6 Enter a new unit address using the procedures for text entry explained in detail in Entering Text on page 19 2 4 5 Beginning and Ending Remote Operation To begin remote operation on the front panel press and release Shift once so that the button lights up then press F While in Remote mode the front panel LED labeled Remote glows green and setup commands cannot be made from the unit front panel The status menus discussed in Monitoring Status Using the Front Panel on page 15 continue to display accurate unit status in Remote mode Dolby DP570 Multichannel Audio Tool User s Manual Getting Started Installing the Remote Software To end remote operation and resume using the front panel interface press Shift then again 2 4 6 Starting the Remote Software To start the remote software 1 Double click the program icon 2 Review the communication settings and modify them if necessary 3 Click OK The DP570 alerts you that it is opening the device and when communication is established displays the main application screen shown in Figure 4 1 2 4 7 Configure the Setup Monitor Tab Before the DP570 can begin service you must configure it to reflect your monitoring system 1 Click Setup on the application button bar The system opens the Monitor tab shown in Figure 2 1 2 Check the appropriate settings For a detailed discussion of the concepts and procedures for setting up

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