Dolby Laboratories DP571 User Manual
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Dolby Laboratories DP571 User Manual

Dolby Laboratories DP571 User Manual

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DP571 Dolby
DP571 Dolby
DP571 Dolby
DP571 Dolby
Encoder User's
Encoder User's
Encoder User's
Encoder User's
Manual
Manual
Manual
Manual
Issue 1
Issue 1
Issue 1
Issue 1
®
®
®
®
E
E
E
E
Part Number 91961
Part Number 91961
Part Number 91961
Part Number 91961

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Summary of Contents for Dolby Laboratories DP571

  • Page 1 DP571 Dolby DP571 Dolby DP571 Dolby DP571 Dolby ® ® ® ® Encoder User’s Encoder User’s Encoder User’s Encoder User’s Manual Manual Manual Manual Issue 1 Issue 1 Issue 1 Issue 1 Part Number 91961 Part Number 91961 Part Number 91961...
  • Page 2 LABORATORIES OR ITS AGENTS HAVE BEEN ADVISED, ORALLY OR IN WRITING, OF THE POSSIBILITY OF SUCH DAMAGES. Dolby, Pro Logic, and the double-D symbol are registered trademarks of Dolby Laboratories. Surround EX is a Dolby, Pro Logic, and the double-D symbol are registered trademarks of Dolby Laboratories. Surround EX is a...

  • Page 3: Table Of Contents

    ® DP571 Dolby E Encoder User’s Manual Table of Contents List of Figures........................ v List of Tables ......................... v Regulatory Notices ....................... vi Fuse Information ......................ix Chapter 1 Introduction ...................1-1 Dolby E Technology Overview ............... 1-1 Dolby E Characteristics ................1-1 Equipment Required................
  • Page 4 ® DP571 Dolby E Encoder User’s Manual 3.7.3 TC, Fault, Remote, PCM Dly, Error, and VRef LEDs ....3-8 3.7.4 Input Channel Activity..............3-9 Using the Status Connector ..............3-9 Chapter 4 Using Presets ..................4-1 Saving a Preset ..................4-1 Recalling a Preset ..................
  • Page 5 Figure 1-2 Live Remote Telecast Configuration ............1-3 Figure 1-3 Digital TV Network Dolby E Rebroadcast ............1-4 Figure 3-1 Front-Panel LEDs..................3-8 Figure 6-1 DP571 Front and Back Panels ..............6-1 List of Tables Table 3-1 Default Metadata Parameter Settings............3-2 Table 3-2 Input/Output Channel Assignments ..............3-4 Table 3-3 TC, Fault, Remote, PCM Dly, Error, and VRef LEDs........3-9...

  • Page 6: Regulatory Notices

    ® DP571 Dolby E Encoder User’s Manual Regulatory Notices 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.
  • Page 7 ® DP571 Dolby E Encoder User’s 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. To ensure safe operation and to guard against potential shock hazard or risk of fire, the following must be observed: Ensure that your mains supply is in the correct range for the input power requirement of the unit.
  • Page 8 E Encoder User’s Manual 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.

  • Page 9: Fuse Information

    ® DP571 Dolby E Encoder User’s Manual 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.
  • Page 10 ® DP571 Dolby E Encoder User’s Manual 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,...

  • Page 11: Chapter 1 Introduction

    VU or peak reading meters, but this is normal. Equipment Required Audio is encoded into a Dolby E stream by the DP571 as described in this manual. The bitstream can be decoded by the DP572 Dolby E Decoder or by a device...

  • Page 12: Common Applications

    Figure 1-2 shows a typical live remote setup. In this configuration, the multichannel output of the mixer is sent to the DP571, the DP570 and the DP563 Pro Logic II Encoder simultaneously. Metadata selections made while monitoring are sent from...

  • Page 13: Digital Television Distribution

    E Encoder User’s Manual Hardware Installation the DP570, to the DP571 encoder which adds this audio metadata to the 5.1 audio to make the Dolby E data stream which is then encoded into the outgoing MPEG Transport Stream. The DP572 decoder is used for confidence monitoring.

  • Page 14: Figure 1-3 Digital Tv Network Dolby E Rebroadcast

    ® DP571 Dolby E Encoder User’s Manual Hardware Installation Lt/Rt Dolby E Main Dolby VTR or MPEG (5.1) (5.1) DP572 Server Encoder Lt/Rt DP571 Lt/Rt Metadata Lt/Rt Master Metadata Metadata Control from DP570 Lt/Rt Dolby E Main (5.1) (5.1) DP572 5.1-Channel...

  • Page 15: Chapter 2 Hardware Installation

    Connecting Inputs and Outputs After the unit is installed in its permanent location, connect its inputs and outputs. The DP571 accepts a variety of connections. See Section 6.2 for details.

  • Page 16: Terminate Unused Connections

    1. Plug in a stable analog video reference signal to the rear of the unit, as described in Section 6.2.5. Note: The DP571 will not function without a valid video reference input signal. 2. Connect the digital audio inputs to the DP571. These are AES-3id inputs (unbalanced, 75Ω, 1 V peak-to-peak standard output) and are very similar to...

  • Page 17: Setup And Status Checks

    • Setup determines how audio is encoded during the current session. • Status provides constant feedback on the state of the unit and its operation. When the DP571 is powered up, the main status menu appears first. Press Setup change to the setup menu.

  • Page 18: Default Metadata Parameter Values

    DP571 Dolby E Encoder User’s Manual Setup and Status Checks Default Metadata Parameter Values The default metadata settings shown in Table 3-1 are used only when the DP571 is generating metadata internally. Table 3-1 Default Metadata Parameter Settings Four Parameter 5.1 Channels...

  • Page 19: Required Channel Mappings

    Disabled Srnd 3 dB Atten Enabled Disabled Srnd Phase Shift Required Channel Mappings The channel mappings used by the DP571 are not user adjustable. You must use the mapping listed in Table 3-2 for the program configuration you are encoding.

  • Page 20: Listening To The Output

    ® DP571 Dolby E Encoder User’s Manual Setup and Status Checks Table 3-2 Input/Output Channel Assignments Connector Channel Map Program Config 5.1 + 2 1L/1R 1C/1LFE 1Ls/1Rs 2L/2R 5.1 + 2 × 1 1L/1R 1C/1LFE 1Ls/1Rs 2C/3C 4 + 4...

  • Page 21: Monitoring Status Using The Status Menu

    ® DP571 Dolby E Encoder User’s Manual Setup and Status Checks because Dolby E uses the entire audio payload of an AES pair, thereby creating the appearance of full-scale audio on the VTR. Note: Do not adjust the input or output volume controls when recording or playing back Dolby E data, as this action will corrupt the data stream and render it undecodable.

  • Page 22: Video Ref

    ® DP571 Dolby E Encoder User’s Manual Setup and Status Checks 3.6.3 Video Ref Video Ref 29.97 fps This screen displays the video frame rate of the reference source. The options are 29.97 fps (NTSC), 25 fps (PAL), 23.98 fps, 24 fps (P or PsF), and 30 fps. The incoming video reference must match the Frame Rate parameter selected in the Operating Mode Setup Menu.

  • Page 23: Metadata

    Metadata Metadata Internal The source of metadata, Internal or External, is displayed. Note: Metadata from an external source cannot be edited in the DP571. Use the internal source if you wish to create different metadata parameters. 3.6.8 Error Error Status...

  • Page 24: Output Data Leds

    3.7.1 Output Data LEDs The DP571 lights the LED corresponding to the output data bit depth. The bit depth is selected in the Operating Mode setup menu. Currently, 24-bit output data is not supported and the corresponding LED is not used.

  • Page 25: Input Channel Activity

    3.7.4 Input Channel Activity The DP571 input channel activity LEDs display the number of channels in the currently selected program configuration, as well as their status. An LED lights up for each channel in use, and its color indicates its status. Details are listed in Table 3-4.
  • Page 26 Virtual Dolby Technologies Test DVD Track List...

  • Page 27: Chapter 4 Using Presets

    ® DP571 Dolby E Encoder User’s Manual Chapter 4 Using Presets You can save setup time by saving and recalling up to eight presets. A preset is a snapshot of all device settings. Saving a Preset To save a preset, follow these steps: 1.
  • Page 28 Virtual Dolby Technologies Test DVD Track List...

  • Page 29: Important Key Sequences

    You can also reset the unit by unplugging it, and plugging it back in. Firmware Update Mode To put the unit into firmware update mode, follow these steps: 1. Reset the DP571 either by removing and restoring power, or by the method described above. 2. During the reset, press and hold the...
  • Page 30 Virtual Dolby Technologies Test DVD Track List...

  • Page 31: Chapter 6 Hardware Description

    ® DP571 Dolby E Encoder User’s Manual Chapter 6 Hardware Description Figure 6-1 DP571 Front and Back Panels...

  • Page 32: Front Panel

    Shift button, and then press the desired button. The Shift button stays lit until you press another button, or press Shift again to disable the alternate-function mode. Table 6-1 explains all the button functions. Table 6-1 DP571 Front-Panel Buttons Buttons Function...

  • Page 33: Leds

    Dolby Laboratories visit www.dolbysupport.com.and click Got Upgrade Cable?. The connector pinout is shown in Table 6-2. Note: The DP571 is DCE as defined in the the RS232 specification. The RX connection is outbound, and the TX connection is inbound.

  • Page 34: Status Connector

    The two inputs on pins 7 and 8 select among the first three (of eight) presets stored in the DP571. The inputs are normally high (internal pull up) and trigger a preset recall by sensing a momentary high-to-low transition. A momentary contact closure between pins 7 and 9 (ground) or pins 8 and 9 is sufficient to activate a function, but a held closure also works.

  • Page 35: Metadata Connector

    Metadata Connector Audio metadata from an upstream device, like a DP570 Multichannel Audio Tool or a DP572 Dolby E Decoder, can be connected to the DP571 here. The audio metadata stream, which includes important information to properly format the audio when received and decoded in the home, will be incorporated into and carried by the encoded Dolby E data stream created by the DP571.

  • Page 36: Main Out Connectors

    6.2.5 Video Ref Connectors The DP571 requires a video reference signal to lock the audio and video at frame boundaries. The DP571 supports the following frame rates: • 29.97 Hz •...

  • Page 37: Ltc In Connector

    Dolby E bitstream. 6.2.7 Digital Input Connectors The digital input connections on the DP571 encoder are BNC connectors, compliant with the AES-3id standard. A maximum of eight PCM channels can be sent to the digital inputs, each with a loop-through connection.
  • Page 38 Virtual Dolby Technologies Test DVD Track List...

  • Page 39: Chapter 7 Setup Menus

    ® DP571 Dolby E Encoder User’s Manual Chapter 7 Setup Menus This chapter describes the DP571 setup menus and related functions. You can find menu trees in the DP571/DP572 Dolby ® E Professional Encoder/Decoder Quick Start Guide. Program Config In the Program Config menu, you can select any program configuration shown in Table 7-1.

  • Page 40: Operating Mode

    7.2.1 Output Clock The Main Out of the DP571 can be selectively locked to either the video reference or the main AES input. Video Ref Input must be selected for normal operation. The Main AES Input mode can be used only if the main AES input has been locked to video elsewhere.

  • Page 41: Reversion Mode

    • Disabled—This is the default setting; it is appropriate for most common VTRs. • Enabled—This setting allows a DP571 encoder to be used with a 30 Hz VTR operating at 29.97 Hz. When enabled, the LCD displays a < instead of the frame rate.

  • Page 42: Bit Depth

    7.2.7 Bit Depth The DP571 can encode both 16- and 20-bit Dolby E bitstreams. Note: Sixteen-bit mode affects only the space the Dolby E bitstream occupies in the main AES output, not the resolution of the underlying PCM audio.

  • Page 43: Metadata Parameters

    DP571 Dolby E Encoder User’s Manual Setup Menus 7.2.8 Metadata Parameters This section defines the DP571 metadata parameters and their default settings. For a full discussion of metadata, see the Dolby Metadata Guide. Table 7-2 Metadata Parameter Definitions Parameter Description...

  • Page 44: System Settings

    ® DP571 Dolby E Encoder User’s Manual Setup Menus Parameter Description Display When the stereo downmix is Lt/Rt, designates downmix level for the C Lt/Rt C channel when end user has no center speaker. Dwnmx When the stereo downmix is Lt/Rt, designates downmix level for Lt/Rt S surround channels when end user has no surround speakers.

  • Page 45: Appendix A Dolby Operating Specification

    ® DP571 Dolby E Encoder User’s Manual Appendix A Dolby Operating Specification Description Specification Power Input 90–264 VAC, 50–60 Hz Requirements Altitude Operating: –60 to +3,000 meters (–197 to +10,000 ft) Derate max temp by 10% for every 1,000 meters Dimensions Meets EIA 19”...

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