Dolby Laboratories DP580 User manual

Dolby Professional Reference Decoder
DP580
User's guide
V2.0
16 January 2018

Copyright
©2018 Dolby Laboratories. All rights reserved.
Dolby Laboratories, Inc.
1275 Market Street
San Francisco, CA 94103-1410 USA
Telephone [phone]
Fax [phone]
http://www.dolby.com
Trademarks
Dolby and the double-D symbol are registered trademarks of Dolby Laboratories.
The following are trademarks of Dolby Laboratories:
Dialogue Intelligence™
Dolby®
Dolby Advanced Audio™
Dolby Atmos®
Dolby Audio™
Dolby Cinema™
Dolby Digital Plus™
Dolby Digital Plus Advanced Audio™
Dolby Digital Plus Home Theater™
Dolby Home Theater®
Dolby Theatre®
Dolby Vision™
Dolby Voice®
Feel Every Dimension™
Feel Every Dimension in Dolby™
Feel Every Dimension in Dolby Atmos™
MLP Lossless™
Pro Logic®
Surround EX™
All other trademarks remain the property of their respective owners.
Confidential information
Confidential information for Dolby Laboratories Licensees only. Unauthorized use, sale, or
duplication is prohibited.

Contents
1 Introduction to the Dolby Professional Reference Decoder DP580
documentation .................................................................................................. 5
1.1 Using this information.....................................................................................5
1.2 Speaker name abbreviations........................................................................... 5
1.3 Questions and feedback.................................................................................. 6
2 Overview of the Dolby Professional Reference Decoder DP580.....................7
2.1 Supported Dolby technologies........................................................................ 7
2.1.1 Dolby AC-4 features.............................................................................8
2.1.2 Dolby Atmos.........................................................................................9
2.1.3 Dolby Digital Plus features..................................................................9
2.1.4 Dolby Digital features.........................................................................10
2.1.5 Dolby ED2 features.............................................................................10
2.2 New features...................................................................................................10
2.3 Bill of materials................................................................................................11
2.4 DP580 front panel.......................................................................................... 11
2.5 DP580 rear panel............................................................................................ 12
2.6 Specifications and requirements................................................................... 13
2.6.1 Dimensions......................................................................................... 13
2.6.2 Environmental specifications.............................................................14
2.6.3 Power requirements...........................................................................14
3 Getting started............................................................................................ 15
3.1 Installation sequence......................................................................................15
3.2 Installing the hardware...................................................................................15
3.3 Network configuration................................................................................... 15
3.3.1 Configuring the command port......................................................... 15
3.3.2 Modifying network settings...............................................................16
3.4 Starting up or rebooting the system.............................................................16
3.5 Upgrading the system software.....................................................................17
3.6 Configuring NTP .............................................................................................17
3.7 Setting the system clock................................................................................ 17
4 Dolby Professional Reference Decoder DP580 operations...........................19
4.1 DP580 display bar..........................................................................................19
4.1.1 Input source display.......................................................................... 20
4.1.2 Loudness settings display.................................................................20
4.1.3 Audio output meter...........................................................................20
4.1.4 Loudness displays..............................................................................20
4.2 Bitstream decoding and monitoring..............................................................21
4.2.1 Decoding and monitoring AES input..................................................21
4.2.2 Decoding and monitoring IP input.....................................................21
4.2.3 Decoding and monitoring SDI input..................................................22
4.3 Decoder configuration options..................................................................... 23
4.3.1 Configuring speakers, decoding mode, and mixing options on
the DP580...........................................................................................23
4.3.2 Setting associated audio parameters...............................................23
4.3.3 Configuring bass management......................................................... 24
4.3.4 Configuring Dolby Digital Plus decoding.......................................... 24
4.3.5 Configuring the Dolby AC-4 decoder.................................................25
Contents
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4.4 Configuring DP580 output............................................................................ 25
4.5 HDMI tab.........................................................................................................26
4.5.1 HDMI sink device panel......................................................................26
4.5.2 EDID configuration panel................................................................... 27
4.6 Selecting loudness setup options................................................................. 27
4.6.1 Loudness parameters........................................................................28
5 Dolby Professional Reference Decoder DP580 administration....................29
5.1 Administrative functions...............................................................................29
5.1.1 Checking the system information.....................................................29
5.1.2 Resetting the system settings..........................................................30
6 Event and system logs................................................................................. 31
6.1 Event and system log descriptions................................................................31
6.2 Opening the event logs view..........................................................................31
6.3 Event log browsing options...........................................................................32
6.4 Downloading event logs................................................................................ 32
6.5 Downloading system logs..............................................................................33
Glossary............................................................................................................34
Contents
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1 Introduction to the Dolby Professional
Reference Decoder DP580 documentation
This documentation provides functionality, installation, and operational information about the
Dolby Professional Reference Decoder DP580.
•Using this information
•Speaker name abbreviations
•Questions and feedback
1.1 Using this information
The structure of this document emphasizes user goals and access to the information required
to achieve them.
Use this list to locate specific information about the functionality of the Dolby Professional
Reference Decoder DP580:
•
Overview of the Dolby Professional Reference Decoder DP580 summarizes the supported
containers, content, and available tools for the unit.
•
Installation of the Dolby Professional Reference Decoder DP580 covers the installation
process for the unit.
•
Dolby Professional Reference Decoder DP580 operations covers the most important decoder
functions of the unit, and provides instructions for completing associated tasks.
•
Dolby Professional Reference Decoder DP580 administration covers the administrative
control functions.
•
Event and system logs covers the types and uses of available unit logs.
1.2 Speaker name abbreviations
Speaker names used for DP580 output include height speakers.
This table lists the names of speakers that receive output, as well as their abbreviations. In
some outputs, the speaker abbreviations occur individually; in other outputs, the abbreviations
occur in pairs.
Table 1: Speaker abbreviations
Speaker name Abbreviation
Left L
Right R
Center C
Low-Frequency Effects LFE
Left surround Ls
Right surround Rs
Left rear surround Lrs
Right rear surround Rrs
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Table 1: Speaker abbreviations (continued)
Speaker name Abbreviation
Left top front Ltf
Right top front Rtf
Left top middle Ltm
Right top middle Rtm
Left top rear Ltr
Right top rear Rtr
1.3 Questions and feedback
Support services are available to address any questions about this hardware product.
For any questions regarding the described technology, contact [email protected].
If you have comments or feedback about this documentation, send us an email at
[email protected].
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2 Overview of the Dolby Professional Reference
Decoder DP580
Use the DP580 to decode and monitor Dolby audio content in a broadcast environment,
including pass-through of Dolby Digital or Dolby Digital Plus on an HDMI input. The DP580
supports Dolby technologies such as Dolby AC-4 and Dolby Digital Plus with Dolby Atmos
content that are used to deliver personalized or immersive experiences at low bit rates.
•Supported Dolby technologies
•New features
•Bill of materials
•DP580 front panel
•DP580 rear panel
•Specifications and requirements
2.1 Supported Dolby technologies
The Dolby Professional Reference Decoder DP580 supports the Dolby technologies listed here.
These technologies work in different combinations with one another to produce specific
broadcast audio experiences. All Dolby codecs are designed for broadcast bit-rate efficiency and
loudness management, and several offer immersive sound experience.
For immersive sound:
Dolby AC-4
The latest Dolby codec, which can provide enhanced audio with loudness management at
50-percent-lower bit rates than Dolby Digital Plus in broadcast environments, as well as
immersive 5.1.2-channel output.
The DP580 is especially useful for confidence monitoring, checking and displaying
metadata, and rendering to a given speaker configuration.
Dolby Digital Plus with Dolby Atmos content
A new version of the Dolby Digital Plus multichannel surround technology.
Dolby ED2
The latest iteration of the Dolby broadcast contribution format.
For home theater experience:
Dolby Digital Plus
The advanced Dolby 7.1-channel surround-sound codec.
Dolby Digital
The original Dolby 5.1-channel surround-sound codec.
Dolby E
The original Dolby broadcast contribution format.
Dolby TrueHD
The fully lossless 7.1-channel home theater format for Blu-ray Disc playback.
Dolby MAT
The Dolby TrueHD transmission format often used in PCM with metadata workflows.
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2.1.1 Dolby AC-4 features
The key aspects of Dolby AC-4 highlight the improvements and expanded user experiences that
the product brings to the broadcast environment. The list provided here does not cover all
aspects of Dolby AC-4. For a complete description, refer to the respective specifications (ETSI TS
103 190-1 for channel-based audio and ETSI TS 103 190-2 for immersive and personalized audio).
Summary of Dolby AC-4 features:
•Improved compression efficiency
Compared to Dolby Digital and Dolby Digital Plus, Dolby AC-4 provides significantly better
compression efficiency and better audio quality at a fixed bit rate or the same audio quality
at a lower bit rate.
Dolby AC-4 provides the same industry-standard, multichannel 5.1 audio quality as Dolby
Digital Plus at half the data rate, which means multichannel audio can be encoded using 96
kbps.
•Support for Dolby Atmos content
Provides tools to process the newest generation of object-based audio content.
•Personalization
Provides tools for users to personalize their listening experience.
•Built-in, metadata-based multichannel and multiband dynamic range and loudness control
as well as integrated postprocessing
Advanced dynamic range compression is known from Dolby Digital and Dolby Digital Plus.
Dolby AC-4 improves the audio quality further by using multiband and multichannel
compression algorithms compared to the original method, which used a single wideband
gain factor for all channels.
Dolby AC-4 dynamic range control supports the transmission of user-selectable dynamic
compression parametric curves and compression gains for more flexibility and wider
support.
•Support for the newest generation of consumer playback devices to adapt the content to
specific listening environments and playback scenarios such as:
•Audio/video receiver and home theater
•Portable/mobile speakers
•Portable/mobile headphones
•Flat-panel TV
•Advanced dialogue enhancement
Provides a better experience to users with hearing impairments.
•Built-in audio/video (A/V) frame alignment
Dolby AC-4 supports frame sizes that enable alignment of audio frames with most popular
video frame sizes. This feature can be used to circumvent one of the common sources for A/V
synchronization problems (also referred to as digital turnaround).
•Excellent audio quality for legacy content configurations
•Integrated headphone virtualization and support for immersive stereo decoding
•Speaker virtualized output
•Immersive (5.1.2) channel-based output
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2.1.2 Dolby Atmos
Dolby Atmos is an object-based audio technology for creating and reproducing spatial audio.
The Dolby Atmos platform encompasses products, services, and technologies and includes
authoring, distribution, and playback tools for both linear and nonlinear content.
Rather than require a content creator to downmix the individual elements (objects) of an audio
scene to a fixed number of output channels prior to transmission and rendering, individual
audio objects can be preserved, transmitted, and rendered individually. Key features of
Dolby Atmos include:
•Object-based audio metadata encoded in the audio bitstream
•Three-dimensional audio rendering
•Device-independent audio bitstreams that can be faithfully rendered by any Dolby Atmos
playback device
•A flexible rendering engine for Dolby Atmos playback devices that supports a wide range of
loudspeaker layouts and room characteristics
•New speaker positions and designs
Dolby Atmos supports dynamic objects as well as traditional channel-based audio. Dynamic
objects are used for discrete sound elements that can be precisely placed and moved through
the playback environment, such as a helicopter that flies over the audience. Channel-based
audio is often used for static ambient sounds, such as the music portion of a soundtrack. A
typical Dolby Atmos soundtrack is a combination of dynamic objects and bed objects (channels)
collectively referred to as object-based audio.
2.1.3 Dolby Digital Plus features
Dolby Digital Plus introduces a number of enhancements to Dolby Digital, including support for
a wider range of data rates, increased channel count, multiple-program support, and additional
tools for representing compressed data and eliminating artifacts. Dolby Digital Plus is backward
compatible with Dolby Digital.
Dolby Digital Plus includes these features:
High data rate
Supports a maximum data rate of 6,144 kbps.
Uses a variable frame duration (one, two, three, or six audio blocks per frame) to
accommodate high data rates.
Scalable bitstream structure
A flexible structure of multiple independent and dependent substreams supports additional
programs and additional channels.
Multichannel support
Supports up to 7.1.4 channels in a single program and up to two independent Low-
Frequency Effects (LFE) channels.
Multiple audio programs
A single bitstream can contain up to eight audio programs.
Mixing metadata
A bitstream can carry mixing metadata for receiver mixing of two streams (for example, to
support service).
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Encoding tool and conversion metadata
A bitstream contains metadata generated by coding tools as well as metadata values that
enable a decoder to convert a Dolby Digital Plus bitstream to Dolby Digital without fully
decoding it.
Multiple downmix options
A bitstream can carry downmix coefficients for stereo, Dolby Surround compatible, and
Dolby Pro Logic II compatible downmixes.
2.1.4 Dolby Digital features
Because Dolby Digital Plus is built on Dolby Digital, they share a number of features.
These Dolby Digital features are also part of Dolby Digital Plus:
Dialogue normalization
Dialogue normalization is the process of aligning the average dialogue level of different
programs to a consistent level (the dialogue reference level) so that a consumer does not
have to constantly adjust the volume control of the playback system as programs change.
Dynamic range control
Dynamic range control compresses the dynamic range of a program by reducing (cutting)
the level of the loudest sounds and increasing (boosting) the level of the quietest sounds to
adjust the sound to the listening situation.
Audio production information
Audio production information is additional information about the audio production
environment, such as the mixing level, recording room type, and copyright information.
Dolby Digital also supports two types of two-channel downmix: Dolby Surround compatible
(Lt/Rt) and stereo (Lo/Ro). In Dolby Digital decoders, when 2.0 output is selected and LFE output
is disabled, the LFE channel content is not reproduced.
2.1.5 Dolby ED2 features
Dolby ED2 extends Dolby E in many dimensions. The expanded capabilities enable greater
broadcast flexibility and better end-user experiences.
Dolby ED2 includes these features:
Greater number of AES3 stereo pairs
The maximum number of pairs is increased from two to four.
Greater number of audio elements (channels or objects)
The maximum number of elements is increased from 8 to 16.
Different use for program configurations
Dolby E provides 24 channel-based configurations, whereas Dolby ED2 configurations are
restricted for personalized and immersive use cases.
Dolby E and Dolby AC-3 metadata parity
Metadata for both the contribution format and the codec remain accessible.
2.2 New features
This release of the Dolby Professional Reference Decoder DP580 adds new functionality
included with the latest Dolby codecs and contribution formats. Later releases may carry
additional functionality for broadcast environments.
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The Dolby Professional Reference Decoder DP580 includes these new features:
•Dolby AC-4 decoding on IP, serial digital interface (SDI), and Audio Engineering Society (AES)
inputs
•Selection of language presentation (Dolby AC-4)
•Dynamic range control (Dolby AC-4)
•Dialogue enhancement (Dolby AC-4)
•Dolby Digital Plus with Dolby Atmos content decoding on IP, SDI, AES, and HDMI inputs
•Dolby ED2 decoding on SDI inputs
•Monitoring of each presentation from a Dolby ED2 or Dolby Digital Plus with Dolby Atmos
content bitstream using the SDI, AES, or analog outputs
2.3 Bill of materials
These items are included in the box for the DP580.
•One Dolby Professional Reference Decoder DP580 unit
•One power cable
•Safety and regulatory guidelines
•Warranty information
•The
Dolby Professional Reference Decoder DP580 User's guide (this document)
2.4 DP580 front panel
The front-panel components of the DP580 provide control and informational functions.
The DP580 front panel includes the components shown in this image.
Figure 1: DP580 front panel
1: Input LED
•Green indicates that there is a lock on an incoming audio signal.
•Red indicates that there is no lock on an incoming audio signal.
•Off indicates that no input is selected.
2: Audio LED
•Green indicates that audio data is detected on the input.
•Red for five seconds indicates that there are cyclic redundancy check (CRC) or Pa errors
detected.
•Off indicates that no data is detected on the input.
3: Video LED
•Green indicates that the unit recognizes SDI, IP, or HDMI as the video format on the
input.
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•Red for five seconds indicates a video decoder error.
•Off indicates that the unit is acquiring an output lock or that the unit is receiving audio
only.
4: Error LED
Red for five seconds indicates an audio or video decoding error. This parallels the behavior
of the matching LEDs on the panel. Check the event logs for specific information.
5: User-control screen
Depending on the source, shows different combinations of information, which can include:
•Command interface IP addresses
•Media interface IP addresses
•Master volume
•Source bitstream
•Program number and packet identifier (PID)
•Codec in use
•Channel pair being monitored
•Channel configuration and bit or frame rate
6: Navigation keys
Used in configuring the DP580 ports and controlling the front-panel user interface (UI)
loudness display. See
Configuring the command port .
7: Volume control knob (limited functionality)
This control and the master volume control in the decoder UI are currently in use only for
volume control of headphones. See Configuring DP580 output .
8: Headphone jack
Available for headphone monitoring of the audio output separately from other speakers.
9: Dim button (nonfunctional)
This button is not currently functional.
10: Over-temperature indicator
Indicates that the unit temperature is higher than the recommended range for safe
operation. If the indicator turns red, ensure that the unit front and rear air vents are not
blocked, and that the ambient room temperature is not excessive.
11: Reset button
Reboots the unit when it is unresponsive, or following a software upgrade.
12: Power button
Powers up the unit at the end of the initial installation, and thereafter for continued use.
13: Two Universal Serial Bus (USB) ports
Used to load a software upgrade image.
Related information
Checking event logs
Configuring the command port on page 15
Configuring DP580 output on page 25
2.5 DP580 rear panel
The rear panel of the DP580 presents connectors, inputs, and outputs.
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The DP580 rear panel includes the components shown in this image.
Figure 2: DP580 rear panel
1: AC power connector
Connects to the AC power cord provided with the unit.
2: AES input port
Receives PCM, Dolby Digital Plus with Dolby Atmos content, Dolby E, and Dolby ED2 signals.
The system recognizes each signal type and processes the signal appropriately. This input is
an unbalanced 75Ωfemale high-density BNC connector per AES3-4-2009.
3: Four AES output ports
Outputs PCM audio streams through four unbalanced, 75Ωfemale high-density BNC
connectors. Signal levels per AES3-4-2009.
4: Multichannel analog output port
Requires a male 25-pin D-connector that is compliant to the TASCAM pinout standard.
5: Two USB ports
Inputs for external data resources.
6: Command port (Gigabit Ethernet)
Connects a network to administer the unit through a PC web-based user interface.
7: Media port (Gigabit Ethernet)
Connects a network to receive transport streams over User Datagram Protocol (UDP) and
Real-time Transport Protocol (RTP).
8: SDI input port
Supports embedded audio/video and coded audio streams via SD-SDI (SMPTE 259M-2008),
1.5 Gbps HD-SDI (SMPTE 292M-2012), or 3 Gbps HD-SDI (SMPTE 424M-2012).
9: SDI output port
Outputs PCM and video in one of eight embedded channel pairs.
10: HDMI input port
Receives uncompressed video, and uncompressed or compressed audio.
11: HDMI output port
Sends uncompressed video, and uncompressed or compressed audio.
2.6 Specifications and requirements
Familiarity with the dimensions, environmental specifications, and power requirements of the
DP580 promotes better operational success. We recommend that you review this information
prior to first use of the component.
2.6.1 Dimensions
These are the physical dimensions of the DP580.
•Height: 44 mm (1.75 in)
•Width: 483 mm (19 in)
•Depth: 394 mm (15.5 in)
•Weight: 6.5 kg (14.5 lb)
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2.6.2 Environmental specifications
These are the temperature and humidity operating ranges for the DP580.
The DP580:
•Operates at temperatures between 10º and 35ºC
•Supports operation with relative noncondensing humidity levels between 5% and 90%
2.6.3 Power requirements
These are the DP580 power minimums and maximums.
The DP580 operates with a power input of between 100 and 240 VAC, 50–60 Hz, and 350 W.
Overview of the Dolby Professional Reference Decoder DP580
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3 Getting started
The installation procedures let you prepare the DP580 unit for usage.
•Installation sequence
•Installing the hardware
•Network configuration
•Starting up or rebooting the system
•Upgrading the system software
•Configuring NTP
•Setting the system clock
3.1 Installation sequence
Installing the DP580 requires that you complete these tasks.
1. Mount the DP580 in a rack to secure it in place.
2. Connect the power cable.
3. Connect the signal cables to inputs and outputs to ensure bitstream transmission.
4. Connect the network cables.
5. Start up the system.
6. Configure the network ports.
3.2 Installing the hardware
Install the DP580 unit using the components included with it, plus any other equipment you
require for your intended use.
Procedure
1. Mount the DP580 unit in a rack that is at least 400 mm (16 in) deep.
Caution: To ensure proper ventilation, do not block the front-panel ventilation area on
the top surface at the front of the machine.
2. Connect the provided power cable to the AC connector.
3. Connect your audio and video inputs and outputs.
4. Connect an Ethernet cable from your network to the Command port.
3.3 Network configuration
You can set either a static IP address or use an automatic IP assignment using the Dynamic Host
Configuration Protocol (DHCP) server.
3.3.1 Configuring the command port
The Command port connects the DP580 to a Gigabit Ethernet network.
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About this task
Default factory settings configure the port to acquire an IP address via DHCP. Alternatively, you
can configure a static IP address.
Procedure
1. Press the escape key in the front-panel navigation key set.
The DP580 menu is displayed.
2. Press the enter key three times to display the IP Settings menu.
Two options are displayed: Command Interface and Media Interface.
3. Press the right arrow to display the Network Mode menu for the Command Interface.
4. Press the right arrow to display Static or DHCP, depending on the network.
5. Press the down arrow to select Apply, and then press enter.
The selection corresponding to your choice is displayed.
6. Press the down arrow to select Static IP Settings, and then press enter to activate the
corresponding field.
7. Use the arrow keys to enter a static IP address, and then press enter.
8. Press the down arrow again to select Apply, and then press enter.
The IP address is saved, and the Command Interface menu is displayed again.
9. Repeat steps 6on page 16 through 8on page 16 for the Netmask and Gateway settings.
10. At the Command Interface menu, press the down arrow to select Host Name, and then
press enter.
The Host Name menu is displayed.
11. Press enter to activate the Host Name field.
12. Use the arrow keys to enter a host name.
13. Press the down arrow to select Apply, and then press enter.
3.3.2 Modifying network settings
The network settings specify the DP580 command IP configuration. If you need to change the
settings at any time, you can do so using the System menu.
Procedure
1. In the System menu, select Network.
2. Check the Network Interface Status panel for current settings.
3. In the Network Interface Configuration panel, change the Command configuration settings
as necessary.
3.4 Starting up or rebooting the system
You can start up or reboot the DP580 using the designated buttons or UI control.
About this task
Make sure that the system connections are complete before starting up.
•To start up the system, press and release the power button.
The unit starts up in approximately one minute, and when the boot process is complete, the
front-panel screen displays information about the input source and mode.
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•To reboot the system at any time, press the reset button on the front panel of the unit or, in
the web client graphical user interface (GUI), select System > Admin > Reboot, and then
click Reboot.
3.5 Upgrading the system software
Use the .dlb file to install the new software version on the DP580 unit.
Prerequisites
The upgrade procedure clears the event log, therefore we recommend saving it on your hard
drive before you start the upgrade.
About this task
Do not reboot or remove power to the DP580 while upgrading.
Procedure
1. Obtain the upgrade .dlb file from Dolby Laboratories, and then copy it to your hard drive.
2. On the web UI, under System on the navigation bar, select Admin.
3. Click Browse to locate the upgrade file on your hard drive.
4. Click Upload to upload the file to the DP580.
5. When the file upload completes, click Upgrade.
6. When you see the message Upgrade Completed. Please Press Reboot., click the Reboot
button.
3.6 Configuring NTP
Configure the Network Time Protocol (NTP) to ensure that the unit can access the time
synchronization server and, if available, a backup server.
Procedure
1. In the System menu, select Administration.
2. In the NTP Configuration panel:
a) Check the Enable NTP box.
b) Enter the IP address or name of the NTP server.
c) If available, enter the IP address or name of the NTP backup server.
d) If you are satisfied with your entries, click Apply. If you make an error in the address or
name, correct the error or click Discard to delete all entries and start over.
3.7 Setting the system clock
Set your system clock to the local date and time to ensure that the unit reflects the correct time
frame for operations and logs.
About this task
The unit may or may not be correctly set for your locality. This procedure ensures that the setup
is complete and correct for time stamps.
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Procedure
1. Under the System menu, click Administration and then scroll to the System clock panel.
2. Check the Current Date/Time setting:
•If it does not reflect the exact local date and time, proceed to the next step.
•If the date and time are correct, installation and setup are complete and you can proceed
to other operations.
3. In the Time Zone field, click the drop-down menu, select a description for the time zone that
includes your locality, and then click the Set Time Zone button.
4. In the Date/Time field:
a) Click in the first (date) field, and then select the current date from the calendar that is
displayed.
You can move the calendar back and forth to other months or years by clicking the
double-carat symbols to the right or left of the year and month displayed.
b) Click in the second (hour) field, and then select the current hour from the drop-down list
of times. The times are based on a 24-hour clock.
c) Click in the last (minute) field, select the current minute from the drop-down list, and
then click the Set Date/Time button.
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4 Dolby Professional Reference Decoder DP580
operations
Use the Dolby Professional Reference Decoder DP580 to monitor inputs, and to configure
decoding and output.
•DP580 display bar
•Bitstream decoding and monitoring
•Decoder configuration options
•Configuring DP580 output
•HDMI tab
•Selecting loudness setup options
The general sequence for decoding operations is:
1. Select the input, presentation (if available), source, and channel pair.
2. Configure the decoder for the required Dolby codec or contribution format:
•Dolby Digital Plus
•Dolby Digital Plus with Dolby Atmos content
•Dolby Digital
•Dolby AC-4
•Dolby E
•Dolby ED2
3. Configure the appropriate output.
4.1 DP580 display bar
The DP580 display bar provides a visual reference for the statuses of the active input stream.
This figure shows the DP580 display bar, which provides:
1. Input source information
2. Loudness correction information
3. Audio output meter levels
4. Loudness level displays
Figure 3: DP580 display bar
Dolby Professional Reference Decoder DP580 operations
Dolby Professional Reference Decoder DP580 v2.0 user's guide
16 January 2018 19

4.1.1 Input source display
This section of the display bar shows the current input source (for example, IP, SDI, or AES), and
the selected audio and video streams.
A green dot indicates that the decoder is receiving the signal for that source; a red dot indicates
that no signal is available for that source.
4.1.2 Loudness settings display
This section of the display bar shows the current loudness practice from Dolby Intelligent
Loudness in use, the dialogue normalization value applied to the incoming bitstream, and the
applied loudness measurement.
A green dot indicates that the selected practice type is in use; a red dot indicates that no
practice type is selected.
4.1.3 Audio output meter
This meter shows the audio levels for each output channel.
The meter can show levels for up to 7.1.4 audio channel configurations.
4.1.4 Loudness displays
The display boxes at the upper-right corner of the display bar show the current values for
specific loudness parameters.
You can change the currently displayed loudness parameter by clicking the small inverted
triangle at the lower-right corner of each box, and then selecting a different parameter, as
shown in this figure.
For more details on the loudness parameters, see Loudness parameters .
Note: You can reset the the timing for loudness display under Setup > Loudness by clicking
the Reset Measurements button in the lower panel of the page,
Related information
Loudness parameters on page 28
Dolby Professional Reference Decoder DP580 operations
Dolby Professional Reference Decoder DP580 v2.0 user's guide
16 January 2018 20