Dolby Laboratories DP571, DP572 Metadata Source, AC-3 Metadata, 48kHz Pull Down, Frame Rate

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Dolby E Multichannel Distribution System User Manual

DP571 Dolby E Encoder

 

 

 

 

Metadata Source

Internal: Assigns factory default metadata values based on each Program within a Program Config; these values can still be modified (see Section 3.2.4 - Metadata Params).

Ext Override: Allows local modification of the external source’s metadata values.

External: Uses the external source’s Metadata without permitting local modification.

AC-3 Metadata

Disable: Does not include Dolby Digital metadata in the encoded Dolby E stream. Useful only if the decoded audio will never be Dolby Digital encoded.

Enable: This is the default setting that includes metadata in the Dolby E stream.

48kHz Pull Down

Disable: Default value appropriate for most common VTRs.

Enable: Allows a DP571 encoder to be used with a 30 Hz VTR operating at

29.97Hz. The < in the display below reflects that 48 kHz Pull Down is enabled.

Dolby E

<

5.1 + 2

20bit

 

 

Frame Rate

Version 1.05 and later allows selection between two frame rates: 29.97 fps (NTSC) and 25 fps (PAL). Versions prior to 1.05 offer only 29.97 fps.

The Vref input rate must match the selected frame rate. For example, if the incoming Vref signal is 29.97 Hz/NTSC/black burst, the frame rate must be 29.97 fps, otherwise the Vref LED turns from green to yellow and encoding is disrupted.

The DP572 does not have a frame rate setting. The Vref input rate must match the frame rate of the incoming encoded stream to be properly decoded. For example, a DP572 that receives a 29.97 Hz Vref input will only decode a Dolby E stream encoded at 29.97 fps, otherwise the Vref LED turns from green to yellow and decoding is disrupted.

29.97fps: Default value for Dolby E output used with NTSC equipment.

25 fps: For Dolby E output used with PAL equipment.

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Contents Dolby E Model DP571 Encoder Model DP572 DecoderDolby Laboratories Inc United StatesUnited Kingdom Table of Contents 10BASE-T DP572 Setup Mode Menu Reference Page List of Figures List of Tables Preface Regulatory Notices CanadaIEC Notices Important Safety Notice Aviso Importante De Seguridad Belangrijk Veiligheids-voorschriftChapter Introduction Unpacking and Inspection Fusing Information Unpacking and InspectionCheck Main Fuse Internal Fuse 1Checking the main fuseDigital I/O Signal CharacteristicsSystem Considerations Video ReferenceConnection with the DP569 Multichannel Encoder 2Connection between a DP569 and DP572Front-Panel User Interface Conventions3DP571 and DP572 front-panel controls and LEDs Menu Selection and Push-button Operation Display LEDs Dolby E Program ConfigDisplay Output/Input DataTC and Main Fault, Remote, PCM Dly, Error, and VRefName Function Input/Output Channel ActivityRemote Quickstart Guide for the DP571 and DP572 Dolby E 20bit Channel Configuration Common Features of the DP571 and DP572PCM Delay Channel MetadataConfiguring Jumper Settings Connector Tx Term On Rx Term OnChapter Common Dolby E Applications FilmMusic Commercial and InterstitialNews and Local Programming Live EventsPostproduction 1Typical Dolby E system in a postproduction facilityPage Chapter DP571 Dolby E Encoder Hardware Reference2DP571 front and back panel PCM Delay Input Digital InputsLTC Input Main Out PCM Delay OutUsing the Status Port to Select Presets StatusAuxiliary Pin 7 Transition Pin 8 Transition PresetPreset Tally a Preset Tally B 11 10BASE-TDP571 Setup Mode Menu Reference 3DP571 Unit Setup menusProgram Config Notational ConventionsEncoding Considerations Program Program and Channel Explanation Config Operating Mode Time Code InputMetadata Revert 48kHz Pull Down Metadata SourceAC-3 Metadata Frame RateBit Depth Presets PresetsBitstream Mode Channel Mode Center Dwnmx Lev Enter EscEnter Metadata ParamsReversion Preset Channel ModeRF Mode Pro Dolby Srnd ModeLine Mode Pro Dialogue LevelDP571 Status Mode Menu System SettingsFirmware Upgrade Chapter DP572 Dolby E Decoder 2DP572 front and rear panels Main PCM Input6 10BASE-T Using the Status Port to Select Voiceover and Switched Modes Pin Direction Connection ExplanationDigital Outputs PCM Delay OutputCtrl in pin PCM Chan Config Output Routing Mode LTC OutputDP572 Setup Mode Menu Reference 3DP572 Unit Setup menuPCM Bypass Program PlayKHz Pull Down Bypass MetadataPCM Chan Config Bypass LatencyOutput Routing Headphone Prog Voiceover ModeDelay SRC Voiceover AttenPCM Delay Headphone MapDP572 Status Mode Menu DP572 Unit Setup Firmware UpgradePage Chapter System Specifications

DP571, DP572 specifications

Dolby Laboratories has long been a pioneer in audio and video technology, continuously pushing the boundaries of entertainment experiences. Among their range of innovative products, the Dolby DP572 and DP571 audio processors stand out as powerful tools for commercial cinema and installation applications. These devices are designed to enhance the overall sound experience in theaters, auditoriums, and other large venues, making them crucial for delivering high-quality audio.

The Dolby DP572 is a multi-channel audio processor that supports 7.1 surround sound configurations. It is equipped with advanced Dolby technologies, including Dolby Digital, Dolby Digital Plus, and Dolby TrueHD. This versatility allows filmmakers and sound engineers to create immersive soundscapes that bring an added layer of realism to the viewer's experience. One of the salient features of the DP572 is its advanced processing capabilities, which include automatic calibration, loudness control, and extensive equalization options, ensuring that the sound quality is optimized for any environment.

On the other hand, the Dolby DP571 is a companion processor designed primarily for applications that require flexible audio routing and management. It features the same high-quality audio processing as the DP572 but focuses more on signal management, making it ideal for venues that may need to adapt their audio setup frequently. The DP571 supports both analog and digital audio inputs and outputs, providing versatility for various sound systems. Both units feature user-friendly interfaces, making them accessible for system integrators and operators alike.

In terms of connectivity, both processors boast multiple inputs and outputs, allowing seamless integration with existing audio systems and peripherals. They also support industry-standard audio formats, making them compatible with a wide range of content sources. Signature Dolby technologies, such as dialogue enhancement and surround sound synthesis, ensure that even the most complex audio tracks are rendered with precision.

In summary, the Dolby DP572 and DP571 audio processors are essential components for any cinema or professional audio setup. Their advanced features, compatibility with multiple audio formats, and the legendary sound quality synonymous with Dolby make them invaluable tools for creating immersive audio experiences that captivate audiences. Whether used in conjunction or independently, these processors deliver the high-fidelity sound that is key to modern entertainment.