Manuale d’uso / di manutenzione del prodotto DP569 del fabbricante Dolby Laboratories
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Model DP569 Dolby Digital Multichannel Audio Encoder User’s Manual Issue 3 Part Number 91572.
ii Dolby Laboratories, Inc. Corporate Headquarters Dolby Laboratories, Inc. 100 Potrero Avenue San Francisco, CA 94103-4813 Telephone 415-558-0200 Fax 415-863-1373 Email info@dolby.
Model DP569 User’s M anual iii Table of Contents List of Figures .............................................................................................................. vii List of Tables ......................................................
Model DP569 User’s M anual iv 4.2.3 Metadata Params ............................................................ 4-4 4.2.4 User Pr esets .................................................................... 4-5 4.2.5 I/O C ontrol ....................
Model DP569 User’s M anual v Appendix A Metadata ................................................................................................ A-1 A.1 Metadata Ov erview ...................................................................... A-1 A.
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Model DP569 User’s M anual vii List of Figures 2-1 Jumper Locations ............................................................................................ 2-2 2-2 DP569 Fron t Panel..............................................................
Model DP569 User’s M anual viii List of Tables 2-1 Status Menu Na vigation Bu ttons ..................................................................... 2-4 2-2 Setup Menu Navi gation Butt ons .......................................................
Model DP569 User’s M anual ix Regulatory Notices and Fuse Information FCC 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.
Model DP569 User’s M anual x EU This equipment complies with the E MC requirements of EN55103-1 and EN55103-2 when operated in an E2 environment in accordance with this m anual. IMPORTANT SAFET Y NOTICE This unit complies with the safety stan dard EN60065.
Model DP569 User’s M anual xi VIKTIGA SÄKERHETSÅTGÄR DER! Denna enhet uppfy ller säkerh etsstandard EN60 065. Enhete n får ej utsätt as för yttre å verkan sam t föremål innehållande vätska, såsom kaffemugga r, får ej placeras på utrustningen.
Model DP569 User’s M anual xii Checking the Main Fuse Internal Fuse The switching power supply contains a separate fuse. Most fault conditions should be protected by the main fuse.
Model DP569 User’s M anual 1-1 Chapter 1 Introduction The Dolby DP569 is the reference Dolby Di gital multichannel audio en coder. It supports encoded bit rates from 56 to 640 kbps and channel configurations from mono to 5.
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Model DP569 User’s M anual 2-1 Chapter 2 Setting Up This chapter covers all general connection an d installation requiremen ts for the DP569. 2.1 Unpacking Before unpacking the DP569, inspect the outer carton for shipping dam age. If the carton shows damage, inspect the unit in those areas.
Model DP569 User’s Manu al Setting Up 2-2 2. Gently lift the top cover upward and towards the rear. Carefully set as ide. 3. Reverse the above procedure when re-assembling the unit.
Model DP569 User’s Manu al Setting Up 2-3 2.3 Front Panel The Model DP569 front-panel interface cons ists of a two-line alphanumeric liquid crystal display (LCD), a set of user-input buttons, a set of dedicated LED status indicators, and a remote port.
Model DP569 User’s Manu al Setting Up 2-4 2.3.3 Preset Buttons The second group of buttons allows you to quickly select existing presets. Figure 2-4 Preset and Program Buttons To select a preset, press the appropriate Preset button. A table of factory default presets can be found in Appendix C.
Model DP569 User’s Manu al Setting Up 2-5 Table 2-2 Setup Menu Navigation Buttons Command Result ← or ↑ Displays the previous menu item available on line 2 of the displa y. ↓ or → Displays the next menu item available on line 2 of the display.
Model DP569 User’s Manu al Setting Up 2-6 I/O Control Clock Source 2.5.2 Entering Text In certain situations you will be prompted to enter text. In the text entry window, Enter Name P RESET 6 the first line prom pts you to enter text.
Model DP569 User’s Manu al Setting Up 2-7 2.6 Front-Panel Indicators Figure 2-5 Front-Panel Indicators The front-panel LED indicators provide info rmation on the operational state of the DP569. 2.6.1 Digital Input Status LEDs The front panel has three st atus LEDs for audio inputs Digital In 1/2, 3/4, and 5/6.
Model DP569 User’s Manu al Setting Up 2-8 LED State Description Off The Ref In input is not selected. Green The Ref In input is required and locked without errors. Ref In Red The Ref In input is required, but invalid or not present. Off Remote interface is disabled.
Model DP569 User’s M anual 3-1 Chapter 3 Applications The two main applications for th e DP569 Dolby Digital encoder are: • Digital Television Broadcasting • DVD Authoring Each environment has unique requirements in terms of installation and operation.
Model DP569 User’s M anual Applications 3-2 MUX DP569 Main Out L/R Ls/Rs C/LFE Digital In Multiplexer Dolby Digital Input GPI Input GPI Status Alarms and Status MPEG Transport stream output Optional Preset Recall via automation Ref In Ref Out 48 kHz Reference Figure 3-1 DP569 Integrated with a Multiplexer 3.
Model DP569 User’s M anual Applications 3-3 MUX DP569 Main Out L/R Digital In Multip lex er Dolby Digit al Input GPI Input GPI Stat us Alarm s and Stat us MPEG Transport stream output DP572 Video Re.
Model DP569 User’s M anual Applications 3-4 3.1.5 Alarms and Monitoring The DP569 has a bypass input that can be used for redundant or hot standby operation. In order to connect a pair of DP569 for hot standby, the following connections should be made.
Model DP569 User’s M anual Applications 3-5 2. If you wish to clock the DP569 using an external AES reference, connect this reference and change the Clock Source menu to Ref- In SRC On. See Section 4.2.5. 3. If required, connect the appropriate GPIs to an alarm system and/or a second encoder for redundant operation.
Model DP569 User’s M anual Applications 3-6 Dolby Laboratories can also supp ly an interfac e kit to aid th e installation of this system into studios that us e balanced digital audio conn ections. This k it is called th e Cat. No. 541 cable kit and c ontains four BNC cables along with four impe dance trans formers.
Model DP569 User’s M anual Applications 3-7 6. Recall factory preset number 2 (copied in preset 29) from the front panel; this configures the unit to generate al l metadata settings internally. 7. Place the DP569 in remote mode by sequentially pressing shift and ← keys.
Model DP569 User’s M anual 3-1.
Model DP569 User’s M anual 4-1 Chapter 4 Front-Panel Menus This chapter provides an overview of the te rms and selections available in the front- panel LCD window. 4.1 Status Menu The main status menu appears when you tu rn the power on, press the Status button combination ( Shift , Setup ), or activate the remote control.
Model DP569 User’s M anual Front-Panel Menus 4-2 4.2 Setup Menu Options in the top menu level are: • Operating Mode • Metadata Control • Metadata Params • User Presets • I/O Control • System Settings 4.2.1 Operating Mode In this menu you control wh ether the DP569 is encoding, and whether it is being controlled by timecode.
Model DP569 User’s M anual Front-Panel Menus 4-3 completion of encoding the actual va lue of stop time, including samp les, will be shown in the TC Stop Time display. This samples value can then be used to offset the next piece of encoded material, if n ecessary, to maintain A/V sync.
Model DP569 User’s M anual Front-Panel Menus 4-4 • Adaptive behaves like Last Used if the metadata disappears c ompletely; behaves like Preset if any individual metada ta parameters are missing. 4.2.3 Metadata Params This menu contains 30 metada ta param eter selection menus.
Model DP569 User’s M anual Front-Panel Menus 4-5 LCD Description Lt/Rt C Dwnmx When the stereo downmix is Lt/Rt, designates downmix level for center channel when end user has no center speaker. Lt/Rt S Dwnmx When the stereo downmix is Lt/Rt, designates downmix level for sur round channels when end user has no surround speakers.
Model DP569 User’s M anual Front-Panel Menus 4-6 • Pressing any of the preset buttons, im mediately invoking a preset, cancels any pending preset. • If the unit is in Timecode Control mode, it cannot also recall a preset based on timecode.
Model DP569 User’s M anual Front-Panel Menus 4-7 if the input audio signals are not both synchronous a nd phase aligned with the reference signal. There are some restrictions on the clo ck source selection: • If Ref In-SRC On or an Internal clock source is selected the current Input Format must be PCM.
Model DP569 User’s M anual Front-Panel Menus 4-8 Audio Mode Sets the audio bit in the output bitstream as either audio or non-audio (i.e., data). Default is non-audio. Timecode Input Selects either the LTC or VITC inputs as the timecode input. Mono Channel Allows you to determine the mapping of a mono input source when in 1/0 m ode.
Model DP569 User’s M anual Front-Panel Menus 4-9 Bypass Mode Is used to route the output of a secondary (standby) encoder to the switched audio output of the primary encoder. See Section 3.1.5. 4.2.6 System Settings This menu gives you access to submenus controlling communication with other devices, and for upgrading software.
Model DP569 User’s M anual 4-1.
Model DP569 User’s M anual 5-1 Chapter 5 DolbyRemote 5.1 DolbyRemote Overview The DolbyRemote application, version 2.01, is used to rem otely control the DP569. Key features of the software include: • Offline mode, without the pres ence of a unit, to create and edit parameter files.
Model DP569 User’s M anual DolbyRemote 5-2 Note : It is strongly recommended th at you exit all Windows program s before beginning the installation. 2. Insert the DolbyRemote Software Install Disk 1 into the computer. 3. Click Start and Run. 4. Browse to the DolbyRemote disket te.
Model DP569 User’s M anual DolbyRemote 5-3 DolbyRemote ships with a cable for RS-232 connection bet ween a PC and the front- panel of a DP569 en coder. Additional cabl es m ay be purchased fr om Dolby Laboratories. RS-485 connection for the DP569 requires a separate cable, not provided.
Model DP569 User’s M anual DolbyRemote 5-4 Baud Rate The communication baud rate for the DP569 may be set to 9,600, 19,200 , or 38,400 (the default rate). The baud rate is co nfigurable through the front panel of the encoder. The rate you select in DolbyRemote must match the rate selected in the unit.
Model DP569 User’s M anual DolbyRemote 5-5 5.3.3 Adding or Remo ving Additional Devices To add additional encoders, click the New button or select File, New Device.
Model DP569 User’s M anual DolbyRemote 5-6 Make sure that you are either using a RS -232 connection through the front panel or a RS-485 connection through the rear panel. Verify that the baud rate and device a ddr ess of the unit to be controlled match the parameters given to the Dol b yRemote application in the Op en Device window.
Model DP569 User’s M anual DolbyRemote 5-7 5.6.1 Audio Service Parameters Figure 5-4 Audio Service Parameters Input Meters show the input level of the channe ls enabled in the current encoding mode in dBFS. Audio Bandwidth displays the current audio bandwidth of the main channels.
Model DP569 User’s M anual DolbyRemote 5-8 • Stopped: The user has directed the unit to not encode. 5.6.2 Preprocessing Figure 5-6 Preprocessing Tab Input Level Meter shows the input signal used by th e dynamic range control process to determine the amount of boost or cut required.
Model DP569 User’s M anual DolbyRemote 5-9 5.6.4 Dual Mono These fields are only applied when the coding m ode is set to 1+1. In this case, these parameters apply to channel 2.
Model DP569 User’s M anual DolbyRemote 5-10 Figure 5-10 Reference Input Lock Status shows whether the input channels have been detected and locked by the encoder. Sample Rate shows the sample rate of the input channels. Integrity shows the data integrity of the inpu t channels.
Model DP569 User’s M anual DolbyRemote 5-11 Click on any of the 32 preset buttons to reca ll a user preset. These presets are stored internally within the decoder, not within the DolbyRemote application. Configure Number selects the number of the present you wish to configure, 1 through 27 .
Model DP569 User’s M anual 5-1.
Model DP569 User’s M anual 6-1 Chapter 6 Specifications 6.1 System Block Diagram DSP Proces sing Time C ode Rcvr AES/EBU Receiver AES/EBU Receiver AES/EBU Transmitter Sample Rate Converte r µC Seri.
Model DP569 User’s Manu al Specifications 6-2 6.2.1 Digital Audio Connections Inputs (Digital In 1/2, 3/4, 5/6), Reference Digital Input (Ref In), Bypass Digital Audio Input (Bypass In) BNC female c.
Model DP569 User’s Manu al Specifications 6-3 6.2.5 Metadata Serial Port 9-pin female D-connector, electric al specifications per SMPTE 207M Table 6-2 Metadata Serial Port Pin-Outs Pin Connection 1 .
Model DP569 User’s Manu al Specifications 6-4 6.2.7 Front Panel Remote Control Serial Port (Remote) 8-pin female mini-DIN connector, elect rical specifications per EIA RS-232 Table 6-4 Front Panel R.
Model DP569 User’s Manu al Specifications 6-5 6.2.9 General Purpose Status Output Port (GP I/O Out) 9-pin female D-connector, 5 V CM OS output levels (active low) Table 6-6 General Purpose Status Ou.
Model DP569 User’s M anual 6-1.
Model DP569 User’s M anual A–1 Appendix A 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 ad just their settings to best su it their listening environments.
Model DP569 User’s Manu al Metadata A–2 program (Program Config: 5.1) to eigh t individual programs on a single Dolby E stream (Program Config: 8 × 1).
Model DP569 User’s Manu al Metadata A–3 Program Source 5.1-Channel Program T wo-Channel (Stereo) Program DP570 Multichannel Audio Tool in 5.1+2 Program Config DP571 Dolby E Encoder in 5.1+2 Program Config Multichannel Monitor System L/R C/LFE Ls/Rs Lt/Rt The Dolby E bitstream contains both the 5.
Model DP569 User’s Manu al Metadata A–4 Both types of metadata can be exam ined, modified, or passed through during encoding. Table A-1 lists the active metada ta param eters and indicates if each parameter is inform ational or control. Table A-1 Metadata Parameters Extended Bitstream Informatio n parameters are in italics.
Model DP569 User’s Manu al Metadata A–5 When received at the con sumer’s Dolby Digital d ecoder, this parameter setting determines the level shif t in the decoder that se ts, or normalizes, the average audio output of the decoder to a preset level.
Model DP569 User’s Manu al Metadata A–6 The most important point to remember is th at in setting the dialogue level parameter, you are providing your listener with an esse ntial service. For y our listeners, setting this level properly means: • The volume level is consiste nt with other programs.
Model DP569 User’s Manu al Metadata A–7 Note: While the use of DRC m odes during decoding is a co nsumer-selectable feature, the dialogu e level param eter setting is not. T herefore, the proper setting of the dialogue level parameter is essential before pre v iewing a DRC profile.
Model DP569 User’s Manu al Metadata A–8 A.3.3 Dynamic Range Control Profiles Six preset DRC profiles are available to content producer s: Film Light, Film Standard, Music Light, Music Standard, Speech, and None. Each is applied in the pattern shown in Figure A-2.
Model DP569 User’s Manu al Metadata A–9 • Music Standard Max Boost: 12 dB (below –55 dB) Boost Range: –55 dB to –31 dB (2:1 ratio) Null Band Width: 5 dB (–31 dB to –26 dB) Early Cut Ra.
Model DP569 User’s Manu al Metadata A–10 It is important to consider the output signals from each piece of equipment that can receive a Dolby Digital program in the hom e. Table A-2 shows the output types from different equipment. Table A-2 Outputs from Various Dolby Digital Signal Processin g Equipment Output Equipment Digital 5.
Model DP569 User’s Manu al Metadata A–11 stereo hi-fi or on headphones, and from which a mono signal is derived for use on an RF/Antenna output. The difference betw een the downmixes is how the surround channels are handled.
Model DP569 User’s Manu al Metadata A–12 A.5.1 Universal Parameters Universal parameters are present in a ll Dolby Digital encoders and decoders. Dialogue Level The Dialogue Level parameter is discussed in Section A.
Model DP569 User’s Manu al Metadata A–13 whether the LFE Channel parame ter can be set. You must ha ve at least th ree channels in order to be able to add an LFE channel. LFE Channel Setting Enable Disable Bitstream Mode This parameter describes the audio serv ice contained within the Dolby Digita l bitstream.
Model DP569 User’s Manu al Metadata A–14 Bitstream Mode Setting Definition Assc. Commentary © This is typ ically a single-c hannel program inte nded to co nvey ad ditional com mentary that can be optionall y decoded along with the Main Audio Service.
Model DP569 User’s Manu al Metadata A–15 Center Downmix Level When the encoded audio has three front channels (L, C, R), but the consumer has only left and right front speakers, this pa rameter indicates the nominal downmix level for the center channel with respect to th e left and right channels.
Model DP569 User’s Manu al Metadata A–16 Table A-7 Dolby Surround Mode Dolby Surround Mode Setting Definition Not Dolby Surround default The bitstream contains information that was not Dolby Surround encoded. Dolby Surround The bitstream contains information that was Dolby Surround encoded.
Model DP569 User’s Manu al Metadata A–17 Room Type Setting Not Indicated Large Small Copyright Bit This parameter indicates whether the enc oded Dolby Digital bitstream is copyright protected. It has no affect on Dolby Digital decoders and is purely for information.
Model DP569 User’s Manu al Metadata A–18 frequency signals that are not encoded. At th e suitable data rates this f ilter operates above 20 kHz. In all cases it prevents a liasing on decoding and is normally switched on. This parameter is not passed to the consumer decoder.
Model DP569 User’s Manu al Metadata A–19 Surround Phase Shift This parameter causes the Dolby Digita l en coder to apply a 90-d egree phase shift to the surround channels.
Model DP569 User’s Manu al Metadata A–20 Lt/Rt Center Mix Level This parameter indicates the level sh ift app lied to the center channel when adding to the left and right outputs when downmixing to an Lt/Rt output. Its operation is similar to the center downm ix level in the universal m etadata.
Model DP569 User’s Manu al Metadata A–21 Lo/Ro Center Mix Level Setting 1.414 (+3.0 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) Lo/Ro Surround Mix Level This parameter indicates th e level shift applied to th e surround channels w hen downmixing to a Lo/Ro output.
Model DP569 User’s Manu al Metadata A–22 A/D Converter Type This parameter allows audio that has passe d through a particular A/ D conversion stage to be marked as such so that a decoder may apply the co mplementary D/A pr ocess. A/D Converter Type Setting Standard HDCD A.
Model DP569 User’s Manu al Metadata A–23 Extended Bitstream Information parameters are in italics. Parameter Action Film (5.1) Drama (Lt/Rt) Local News (Mono) Music (5.
Model DP569 User’s M anual A–1.
Model DP569 User’s M anual B–1 Appendix B SMPTE Time Stamp An edited excerpt from Annex B of ATSC Document A/52 (“Digital Audio Compression Standard (AC-3)”) is reproduced below. The Time Stamp Data_type Time stamps are useful in applications wh ere time information must be kept closely associated with encoded audio data (see Figure B-1).
Model DP569 User’s Manu al SMPTE Time Stamp B–2 timecode values to occur within a s ingle a udio access unit. In th is case, the tim ecode value that applies to the earliest sam ple in the access unit is used. It should be recognized that the time stam p values will have a small am ount of inherent jitter.
Model DP569 User’s M anual C–1 Appendix C Factory Default Presets Preset Number 28 29 30 31 32 Preset Name Externl Metadata Stereo Film Stereo Mus ic Surround Film Surround Musi c Dialogue Level .
Model DP569 User’s Manu al Factory Default Presets C–2 Preset Number 28 29 30 31 32 Preset Name Externl Metadata St ereo Film Stereo Music Surr ound Film Surro und Music Time Stamp Disabled Disabl.
Model DP569 User’s M anual D–1 Appendix D Error Messages This appendix lists possible error message s that may be generated by the DP569. In each case a description of possible setup conf licts are given that may have caused the error.
Model DP569 User’s M anual Error Message s D–2 NOT VALID: CHECK INPUT FORMAT • Ref In-SRC On or an Internal Clock Source has been selected and the current Input Format is not PCM . • Time Code Ctrl has been selected as the Encoder State and the current Input Format is not PCM .
Model DP569 User’s M anual Error Message s D–3 NOT VALID: CHECK CODING DELAY • Internal 44.1 kHz has been selected as the Clock Source and the current Coding Delay is Internal with a delay value less than 204 ms , or Internal 32 kHz has been selected and the current delay value less than 280 ms .
Model DP569 User’s M anual D–1.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Dolby Laboratories DP569 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Dolby Laboratories DP569 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Dolby Laboratories DP569 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Dolby Laboratories DP569 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Dolby Laboratories DP569, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Dolby Laboratories DP569.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Dolby Laboratories DP569. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Dolby Laboratories DP569 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
