Model DP569 Dolby Digital Multichannel Audio Encoder User’s Manual Issue 3 Part Number 91572
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.com www.dolby.com European Headquarters Dolby Laboratories, Inc. Wootton Bassett Wiltshire, SN4 8QJ, England Telephone (44) 1793-842100 Fax (44) 1793-842101 WARNING: Troubleshooting must be performed by trained technicians. Do not attempt to service this equipment unless you are qualified to do so.
Model DP569 User’s Manual Table of Contents List of Figures .............................................................................................................. vii List of Tables............................................................................................................... viii Regulatory Notices and Fuse Information .................................................................. ix Chapter 1 Introduction .......................................................................
Model DP569 User’s Manual 4.2.3 4.2.4 4.2.5 4.2.6 Metadata Params ............................................................ 4-4 User Presets .................................................................... 4-5 I/O Control ....................................................................... 4-6 System Settings............................................................... 4-9 Chapter 5 DolbyRemote ........................................................................................ 5-1 5.
Model DP569 User’s Manual Appendix A Metadata ................................................................................................ A-1 A.1 Metadata Overview...................................................................... A-1 A.2 Dialogue Level ............................................................................. A-4 A.3 Dynamic Range Control............................................................... A-6 A.3.1 Line Mode ..........................................................
vi
Model DP569 User’s Manual List of Figures 2-1 2-2 2-3 2-4 2-5 3-1 3-2 3-3 3-4 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5-10 5-11 5-12 6-1 6-2 A-1 A-2 B-1 B-2 Jumper Locations............................................................................................ 2-2 DP569 Front Panel.......................................................................................... 2-3 Front-Panel Navigation Buttons ......................................................................
Model DP569 User’s Manual List of Tables 2-1 2-2 2-3 2-4 2-5 2-6 2-7 4-1 4-2 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 Status Menu Navigation Buttons..................................................................... 2-4 Setup Menu Navigation Buttons...................................................................... 2-5 Commands that Exit the Setup Menu.............................................................. 2-5 Navigation in Text Entry Menu ...............................................................
Model DP569 User’s Manual 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Model DP569 User’s Manual EU This equipment complies with the EMC requirements of EN55103-1 and EN55103-2 when operated in an E2 environment in accordance with this manual. IMPORTANT SAFETY NOTICE 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.
Model DP569 User’s Manual VIKTIGA SÄKERHETSÅTGÄRDER! Denna enhet uppfyller säkerhetsstandard EN60065. Enheten får ej utsättas för yttre åverkan samt föremål S innehållande vätska, såsom kaffemuggar, får ej placeras på utrustningen." För att garantera säkerheten och gardera mot eventuell elchock eller brandrisk, måste följande observeras: o Kontrollera att spänningsväljaren är inställd på korrekt nätspänning.
Model DP569 User’s Manual Checking the Main Fuse Internal Fuse The switching power supply contains a separate fuse. Most fault conditions should be protected by the main fuse. If you find it necessary to replace the internal fuse, be certain to replace it with a fuse of the same type and rating as printed on the switching power supply board.
Model DP569 User’s Manual Chapter 1 Introduction The Dolby DP569 is the reference Dolby Digital multichannel audio encoder. It supports encoded bit rates from 56 to 640 kbps and channel configurations from mono to 5.1-channel surround sound. The DP569 is intended for digital TV, cable, and disc authoring applications, including automated broadcast installations and mastering for DVD and other recorded media. The DP569 provides three pairs of AES3 digital audio inputs and a single AES3 output.
l
Model DP569 User’s Manual Chapter 2 Setting Up This chapter covers all general connection and installation requirements for the DP569. 2.1 Unpacking Before unpacking the DP569, inspect the outer carton for shipping damage. If the carton shows damage, inspect the unit in those areas. Several accessories are provided with the unit.
Model DP569 User’s Manual Setting Up 2. Gently lift the top cover upward and towards the rear. Carefully set aside. 3. Reverse the above procedure when re-assembling the unit.
Model DP569 User’s Manual 2.3 Setting Up Front Panel The Model DP569 front-panel interface consists 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. Please see Figure 2-2 for the front-panel illustration. Figure 2-2 DP569 Front Panel 2.3.1 Front-Panel Interface The menu system has two independent structures: setup and status.
Model DP569 User’s Manual 2.3.3 Setting Up 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. Presets 28–32 are copied to presets 1–5 when shipped from the factory. 2.4 Status Menu To navigate the status menu, use the front-panel navigation buttons as shown in Table 2-1.
Model DP569 User’s Manual Setting Up Table 2-2 Setup Menu Navigation Buttons Command ← or ↑ ↓ or → Enter Esc Result Displays the previous menu item available on line 2 of the display. Displays the next menu item available on line 2 of the display. Enters the menu item on line 2 of the display; changes function status and menu display accordingly. Displays the next higher menu level.
Model DP569 User’s Manual Setting Up 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 PRESET 6 the first line prompts you to enter text. The second line displays the current text for the parameter or, if no text is yet defined, a default text string. An underline cursor appears under the first character in the string. Note: Do not use more than 12 characters, including spaces, for a preset name.
Model DP569 User’s Manual 2.6 Setting Up Front-Panel Indicators Figure 2-5 Front-Panel Indicators The front-panel LED indicators provide information on the operational state of the DP569. 2.6.1 Digital Input Status LEDs The front panel has three status LEDs for audio inputs Digital In 1/2, 3/4, and 5/6. Each indicates if its respective input is in use and, if so, if it is valid. Bypass mode does not affect the function of the status LEDs. Table 2-5 Digital Input LED States State 2.6.
Model DP569 User’s Manual LED State Ref In Remote Timecode Description Off The Ref In input is not selected. Green The Ref In input is required and locked without errors. Red The Ref In input is required, but invalid or not present. Off Remote interface is disabled. Green Remote interface is enabled and operating without errors. Red Remote interface is enabled but there is a low-level serial communications error. Off The timecode input is not required.
Model DP569 User’s Manual Chapter 3 Applications The two main applications for the DP569 Dolby Digital encoder are: • Digital Television Broadcasting • DVD Authoring Each environment has unique requirements in terms of installation and operation. In this chapter, we discuss each application in detail. This chapter assumes the user has some knowledge of the ideas and principles behind metadata. If this is not the case, we suggest you read Appendix A before continuing. 3.
Model DP569 User’s Manual Applications DP569 Main Out L/R Digital In C/LFE MUX Multiplexer Dolby Digital Input Ls/Rs MPEG Transport stream output GPI Input Ref In Alarms and Status 48 kHz Reference GPI Status Ref Out Optional Preset Recall via automation Figure 3-1 DP569 Integrated with a Multiplexer 3.1.2 Integration within a Dolby E System More and more broadcast systems are using Dolby E to distribute multiple channels of audio within and between TV stations.
Model DP569 User’s Manual Applications DP572 Main Input Dolby E DP569 L/R Digital Audio Outputs MUX Main Out Digital In Multiplexer Dolby Digital Input MPEG Transport stream output Metadata Out Video Ref (Studio Ref or Source VTR) Aux Input GPI Status GPI Status Alarms and Status GPI Input Figure 3-2 Connection Between a DP569 and DP572 3.1.3 Metadata Reversion It is important to consider what will happen in situations where metadata does not exist.
Model DP569 User’s Manual 3.1.5 Applications 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 Manual Applications 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. See Section 3.1.5 4. Connect the main output (or switched output) to the Dolby Digital input of the transmission multiplexer. 5.
Model DP569 User’s Manual Applications Dolby Laboratories can also supply an interface kit to aid the installation of this system into studios that use balanced digital audio connections. This kit is called the Cat. No. 541 cable kit and contains four BNC cables along with four impedance transformers. 3.2.2 Quick Start for DVD Authoring This section describes the steps necessary to configure the DP569 for typical operation. Refer to Figure 3-4 as necessary.
Model DP569 User’s Manual Applications 6. Recall factory preset number 2 (copied in preset 29) from the front panel; this configures the unit to generate all metadata settings internally. 7. Place the DP569 in remote mode by sequentially pressing shift and ← keys. 8. Launch the DolbyRemote software and connect to the DP569. See Section 5.3. You are now ready to create a Dolby Digital file. 9. Using the DolbyRemote software, set the following parameters: • The Input Channels configuration. See Section 4.
Model DP569 User’s Manual 3-1
Model DP569 User’s Manual Chapter 4 Front-Panel Menus This chapter provides an overview of the terms and selections available in the frontpanel LCD window. 4.1 Status Menu The main status menu appears when you turn the power on, press the Status button combination (Shift, Setup), or activate the remote control. Main Status Encoder Status 3/2L 448 48 27 0 The top line shows the current unit name or the name of the current preset. The second line shows the current encoding status.
Model DP569 User’s Manual 4.2 Front-Panel Menus Setup Menu Options in the top menu level are: • • • • • • 4.2.1 Operating Mode Metadata Control Metadata Params User Presets I/O Control System Settings Operating Mode In this menu you control whether the DP569 is encoding, and whether it is being controlled by timecode. The submenus are: • Encoder Control • TC Start Time • TC Stop Time Encoder Control The DP569 encode can be controlled in two ways.
Model DP569 User’s Manual Front-Panel Menus completion of encoding the actual value of stop time, including samples, 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 necessary, to maintain A/V sync. For more information consult Appendix B. Timecode control can be entered only when the following conditions are met: • Input Format is set to PCM. • Multiplex Mode is disabled.
Model DP569 User’s Manual • 4.2.3 Front-Panel Menus Adaptive behaves like Last Used if the metadata disappears completely; behaves like Preset if any individual metadata parameters are missing. Metadata Params This menu contains 30 metadata parameter selection menus. Table 4-1 provides a basic definition for each of the metadata parameters available, listed by the text shown on the front-panel display. See Appendix A for more detailed information about metadata.
Model DP569 User’s Manual LCD Lt/Rt C Dwnmx Lt/Rt S Dwnmx Lo/Ro C Dwnmx Lo/Ro S Dwnmx Dolby Srnd EX A/D Conv Type De-emphasis DC Filter Lowpass Filt LFE Filter Srnd 3dB Attn Srnd Ph Shift 4.2.4 Front-Panel Menus Description When the stereo downmix is Lt/Rt, designates downmix level for center channel when end user has no center speaker. When the stereo downmix is Lt/Rt, designates downmix level for surround channels when end user has no surround speakers.
Model DP569 User’s Manual 4.2.5 Front-Panel Menus • Pressing any of the preset buttons, immediately invoking a preset, cancels any pending preset. • If the unit is in Timecode Control mode, it cannot also recall a preset based on timecode. I/O Control In the I/O Control menu you can set the configuration of the DP569’s inputs and outputs.
Model DP569 User’s Manual Front-Panel Menus if the input audio signals are not both synchronous and phase aligned with the reference signal. There are some restrictions on the clock source selection: • • If Ref In-SRC On or an Internal clock source is selected the current Input Format must be PCM. If Digital Input or an Internal clock source is selected, the Multiplex Mode must be disabled. Input Format • PCM: Dolby Digital encoding will be enabled. • Pre-encoded: Pass-through mode will be enabled.
Model DP569 User’s Manual Front-Panel Menus 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 mode. Options are channel 1 of digital input 1/2, channel 2 of digital input 1/2 or the current center channel.
Model DP569 User’s Manual Front-Panel Menus 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. The submenus are: • Remote Baud Rate • Unit Address • Unit Name • Test Tone • Firmware Upgrade Remote Baud Rate Sets the baud rate for remote port communications.
Model DP569 User’s Manual 4-1
Model DP569 User’s Manual Chapter 5 DolbyRemote 5.1 DolbyRemote Overview The DolbyRemote application, version 2.01, is used to remotely control the DP569. Key features of the software include: • Offline mode, without the presence of a unit, to create and edit parameter files. • Save a unit configuration in a file on a PC. Restore the unit’s configuration from a saved DolbyRemote file. • Export an encoder’s configuration in human readable form in either text or HTML format.
Model DP569 User’s Manual DolbyRemote Note: It is strongly recommended that you exit all Windows programs 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 diskette. Select setup.exe and click OK. 5. Please read the Limitation of Liability and Welcome screens before proceeding with the installation. 6. The default installation destination for DolbyRemote is C:\Program Files\Dolby Laboratories.
Model DP569 User’s Manual DolbyRemote DolbyRemote ships with a cable for RS-232 connection between a PC and the frontpanel of a DP569 encoder. Additional cables may be purchased from Dolby Laboratories. RS-485 connection for the DP569 requires a separate cable, not provided. This connects to the rear panel serial port of the unit. Consult Section 6.2.6 for RS-485 support information. 5.2.4 DP569 Setup To operate using DolbyRemote it is necessary to place the DP569 into remote mode.
Model DP569 User’s Manual DolbyRemote 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 configurable through the front panel of the encoder. The rate you select in DolbyRemote must match the rate selected in the unit. Address The default address setting for the DP569 is 0x8280. If the address has been changed from the front panel of the encoder, set the remote address accordingly.
Model DP569 User’s Manual 5.3.3 DolbyRemote Adding or Removing Additional Devices To add additional encoders, click the New button or select File, New Device. The Open Device window is again displayed. See Section 5.3 for parameter details. Figure 5-3 Controlling Two Encoders To remove or discontinue the remote control of a device, click Close or select File, Close Device. 5.4 General Operation 5.4.
Model DP569 User’s Manual DolbyRemote 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 address of the unit to be controlled match the parameters given to the DolbyRemote application in the Open Device window. On the unit, these parameters are found in the System Settings section of the DP569 setup menu.
Model DP569 User’s Manual 5.6.1 DolbyRemote Audio Service Parameters Figure 5-4 Audio Service Parameters Input Meters show the input level of the channels enabled in the current encoding mode in dBFS. Audio Bandwidth displays the current audio bandwidth of the main channels. This is dependent on the number of channels being encoded and the data rate. Pass Through indicates if the unit is in pass-through mode, (i.e., a pre-encoded bitstream has been detected).
Model DP569 User’s Manual • 5.6.2 DolbyRemote Stopped: The user has directed the unit to not encode. Preprocessing Figure 5-6 Preprocessing Tab Input Level Meter shows the input signal used by the dynamic range control process to determine the amount of boost or cut required. Line Mode and RF Mode meters show the current value of the dynamic range control cut and boost words being included in the Dolby Digital bitstream. Red shows compression (cut) and green shows expansion (boost), calibrated in dB.
Model DP569 User’s Manual 5.6.4 DolbyRemote Dual Mono These fields are only applied when the coding mode is set to 1+1. In this case, these parameters apply to channel 2. Figure 5-8 Dual Mono Tab 5.6.
Model DP569 User’s Manual DolbyRemote 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 input channels. Input Subcode Status Bits show the format, sample rate, emphasis, and audio bit as indicated in the subcode of the input signal. Stream Number shows the input stream number for a pre-encoded signal present at the reference input. 5.6.
Model DP569 User’s Manual DolbyRemote Click on any of the 32 preset buttons to recall 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. Presets 28 through 32 are factory defaults and cannot be overwritten. Save Current Configuration Click this button to save the current configuration in the selected preset. 5.6.
Model DP569 User’s Manual 5-1
Model DP569 User’s Manual Chapter 6 Specifications 6.
Model DP569 User’s Manual 6.2.1 Specifications 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 connectors per AES3ID-1995 Outputs Main Digital Audio Output (Main Out), Switched Digital Audio Output (Switched Out) BNC female connectors per AES3ID-1995 6.2.2 Vertical Interval Timecode Input (VITC In) BNC female connectors, composite video input 6.2.
Model DP569 User’s Manual 6.2.5 Specifications Metadata Serial Port 9-pin female D-connector, electrical specifications per SMPTE 207M Table 6-2 Metadata Serial Port Pin-Outs Pin 6.2.
Model DP569 User’s Manual 6.2.7 Specifications Front Panel Remote Control Serial Port (Remote) 8-pin female mini-DIN connector, electrical specifications per EIA RS-232 Table 6-4 Front Panel Remote Control Serial Port Pin-Outs Pin 6.2.
Model DP569 User’s Manual 6.2.9 Specifications General Purpose Status Output Port (GP I/O Out) 9-pin female D-connector, 5 V CMOS output levels (active low) Table 6-6 General Purpose Status Output Port Pin-Outs Pin 6.
Model DP569 User’s Manual 6-1
Model DP569 User’s Manual 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 adjust their settings to best suit their listening environments.
Model DP569 User’s Manual Metadata program (Program Config: 5.1) to eight individual programs on a single Dolby E stream (Program Config: 8 × 1). Each program is discrete with its own metadata in the Dolby E stream. Some control metadata parameters in a Dolby E stream automatically configure a Dolby Digital encoder while others are passed through to the consumer’s Dolby Digital decoder.
Model DP569 User’s Manual Metadata Multichannel Monitor System The Dolby E bitstream contains both the 5.1- and two-channel programs’ encoded audio, and each program's metadata. Metadata Program Source L/R DP570 Multichannel Audio Tool 5.1-Channel Program C/LFE DP571 Dolby E Encoder Ls/Rs in 5.1+2 Program Config in 5.1+2 Program Config Two-Channel (Stereo) Program Lt/Rt Decoded Dolby E bitstream delivers both the 5.1- and two-channel programs’ encoded audio along with corresponding metadata.
Model DP569 User’s Manual Metadata Both types of metadata can be examined, modified, or passed through during encoding. Table A-1 lists the active metadata parameters and indicates if each parameter is informational or control. Table A-1 Metadata Parameters Extended Bitstream Information parameters are in italics.
Model DP569 User’s Manual Metadata When received at the consumer’s Dolby Digital decoder, this parameter setting determines the 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.
Model DP569 User’s Manual Metadata The most important point to remember is that in setting the dialogue level parameter, you are providing your listener with an essential service. For your listeners, setting this level properly means: • The volume level is consistent with other programs. • 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. A.
Model DP569 User’s Manual Metadata Note: While the use of DRC modes during decoding is a consumer-selectable feature, the dialogue level parameter setting is not. Therefore, the proper setting of the dialogue level parameter is essential before previewing a DRC profile. A.3.1 Line Mode Line Mode offers these features: • • • Low-level boost compression scaling is allowed. High-level cut compression scaling is allowed when not downmixing.
Model DP569 User’s Manual Dynamic Range Control Profiles Ouput Level High 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 A-2. All DRC profiles are encoded using a modified B-weighted curve. in Ga y t i Un Early Cut Range Dialogue Level Setting Cut Range Null Band Centered at the Dialogue Level Setting Boost Range Low A.3.
Model DP569 User’s Manual Metadata • 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 Range: –26 dB to –16 dB (2:1 ratio) Cut Range: –16 dB to +4 dB (20:1 ratio) • Speech Max Boost: 15 dB (below –50 dB) Boost Range: –50 dB to –31 dB (5:1 ratio) Null Band Width: 5 dB (–31 dB to –26 dB) Early Cut Range: –26 dB to –16 dB (2:1 ratio) Cut Range: –16 dB to +4 dB (20:1 ratio) • None No DRC profile selected.
Model DP569 User’s Manual Metadata It is important to consider the output signals from each piece of equipment that can receive a Dolby Digital program in the home. Table A-2 shows the output types from different equipment. Table A-2 Outputs from Various Dolby Digital Signal Processing Equipment Output Equipment Digital 5.1-Channel Analog 5.1-channel amplifier Standard home theater A/V amp 5.
Model DP569 User’s Manual Metadata 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.
Model DP569 User’s Manual A.5.1 Metadata Universal Parameters Universal parameters are present in all Dolby Digital encoders and decoders. Dialogue Level The Dialogue Level parameter is discussed in Section A.2. 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.
Model DP569 User’s Manual Metadata whether the LFE Channel parameter can be set. You must have at least three channels in order to be able to add an LFE channel. LFE Channel Setting Enable Disable Bitstream Mode This parameter describes the audio service contained within the Dolby Digital bitstream.
Model DP569 User’s Manual Metadata Bitstream Mode Setting Assc. Commentary © Assc. Emergency (E) Assc. Voice Over (VO) Main Sv Karaoke (K) Definition 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.
Model DP569 User’s Manual Metadata 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 parameter indicates the nominal downmix level for the center channel with respect to the left and right channels. Dolby Digital decoders use this parameter during downmixing in Lo/Ro mode when Extended BSI parameters are not active. Table A-5 Center Downmix Level Center Downmix Level Setting 0.707 (–3 dB) default 0.596 (–4.
Model DP569 User’s Manual Metadata Table A-7 Dolby Surround Mode Dolby Surround Mode Setting Not Dolby Surround default Dolby Surround Not Indicated Definition The bitstream contains information that was not Dolby Surround encoded. The bitstream contains information that was Dolby Surround encoded. After Dolby Digital decoding, the bitstream is Pro Logic decoded. There is no indication either way.
Model DP569 User’s Manual Metadata Room Type Setting Not Indicated Large Small Copyright Bit This parameter indicates whether the encoded Dolby Digital bitstream is copyright protected. It has no affect on Dolby Digital decoders and is purely for information. Copyright Bit Setting Yes No Original Bitstream This parameter indicates whether the encoded Dolby Digital bitstream is the master version or a copy. It has no affect on Dolby Digital decoders and is purely for information.
Model DP569 User’s Manual Metadata frequency signals that are not encoded. At the suitable data rates this filter operates above 20 kHz. In all cases it prevents aliasing on decoding and is normally switched on. This parameter is not passed to the consumer decoder. Lowpass Filter Setting Enable default Disable LFE Lowpass Filter This parameter determines whether a 120 Hz 8th order lowpass filter is applied to the LFE channel input of a Dolby Digital encoder prior to encoding.
Model DP569 User’s Manual Metadata Surround Phase Shift This parameter 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 Digital program is decoded to 5.1 channels, but provides an Lt/Rt output that can be Pro Logic decoded to L, C, R, S, if desired.
Model DP569 User’s Manual Metadata Lt/Rt Center Mix Level This parameter indicates the level shift applied 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 downmix level in the universal metadata. Lt/Rt 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.
Model DP569 User’s Manual Metadata 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 the level shift applied to the surround channels when downmixing to a Lo/Ro output. When Extended BSI parameters are active, this parameter is used, and the Surround Mix Level parameter in the universal parameters is not. Lo/Ro Surround Mix Level Setting 1.414 (+3.
Model DP569 User’s Manual Metadata 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. A/D Converter Type Setting Standard HDCD A.6 Metadata Combinations Table A- provides examples of combinations of parameters that could be used as a preset.
Model DP569 User’s Manual Metadata Extended Bitstream Information parameters are in italics. Parameter Room type Copyright Original Bitstream Preferred Stereo Downmix Lt/Rt Center Downmix Level Lt/Rt Surround Downmix Level Lo/Ro Center Downmix Level Lo/Ro Surround Downmix Level Dolby Surround EX Mode A/D Converter Type DC Filter Lowpass Filter LFE Lowpass Filter Srnd 3 dB Atten Srnd Phase Shift Action Film (5.1) Drama (Lt/Rt) Local News (Mono) Music (5.
Model DP569 User’s Manual A–1
Model DP569 User’s Manual 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 where time information must be kept closely associated with encoded audio data (see Figure B-1). An example of this would be in a digital audio/video transmission system where both audio and video sources have SMPTE timecodes.
Model DP569 User’s Manual SMPTE Time Stamp timecode values to occur within a single audio access unit. In this case, the timecode value that applies to the earliest sample in the access unit is used. It should be recognized that the time stamp values will have a small amount of inherent jitter. The sources of the jitter could be, for example, the ±1 sample ambiguity in relating timecode to an exact sample value or bandwidth limitations in the source of linear timecode.
Model DP569 User’s Manual Appendix C Factory Default Presets Preset Number 28 29 30 31 32 Preset Name Externl Metadata Stereo Film Stereo Music Surround Film Surround Music Dialogue Level –27 dB –27 dB –27 dB –27 dB –27 dB Channel Mode 3/2 2/0 Stereo 2/0 Stereo 3/2 3/2 LFE Channel Enabled Disabled Disabled Enabled Disabled Data Rate Automatic 384 192 kbps 256 kbps 448 kbps 448 kbps Bitstream Mode Main Complete Main Complete Main Complete Main Complete Main Complete
Model DP569 User’s Manual Factory Default Presets Preset Number 28 29 30 31 32 Preset Name Externl Metadata Stereo Film Stereo Music Surround Film Surround Music Time Stamp Disabled Disabled Disabled Disabled Disabled TS Delay Word Disabled Disabled Disabled Disabled Disabled Audio Bit Non-Audio Non-Audio Non-Audio Non-Audio Non-Audio Timecode Input LTC LTC LTC LTC LTC Mono Channel Center Center Center Center Center Multiplex Mode Disabled Disabled Disabled Di
Model DP569 User’s Manual Appendix D Error Messages This appendix lists possible error messages that may be generated by the DP569. In each case a description of possible setup conflicts are given that may have caused the error. When a conflict occurs the parameter that caused the conflict will not be updated but returned to its original value once the error message has been displayed. NOT VALID: CHECK DATA RATE • A new Channel Mode has been selected but is not supported for the current Data Rate.
Model DP569 User’s Manual Error Messages 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. NOT VALID: CHECK ENCODER STATE • Time Code-based Recall has been selected and Encoder State is currently set to Time Code Ctrl.
Model DP569 User’s Manual Error Messages 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. NOT VALID: CHECK OUTPUT MODE • The Multiplex Mode has been Enabled and the current Output Mode is Pro 32-bit or Consumer.
Model DP569 User’s Manual D–1
