DOLBY E

Dolby E: the DP571, the DP572 and the DP570

Dolby E and the DP571 encoder, the DP572 decoder and DP570 multichannel audio tool
Duration: 4 days

Overview
This intermediate level course is intended for production, ingest and broadcast operational staff as a "crash-course" in the Dolby E encoder, decoder and multichannel audio tool units from Dolby Laboratories.

Audience
This course is targeted generally at production and broadcast staff who are required to work with Dolby E media, and is best suited to those operators who will be using the DP571, DP572 and DP570 hardware devices from Dolby Laboratories.

Pre-requisites
  • A good working knowledge of multichannel audio is a pre-requisite for this course, implying some familiarity with mono, stereo and 5.1 formats as well as the principles of encoding and decoding multi-channel audio as well as up-mix and down-mix concepts.
  • Though not a pre-requisite, some preparatory training (e.g. the "Principles of Dolby D and Dolby E" 2-day course which was originally designed for "non-technical" staff, but which has proven to be an invaluable "bridge" to this intensive operational equipment-specific training) is highly recommended.

Course Content
The four day course content covers a day on each of the Dolby E devices for encoding, decoding, as well as monitoring and managing multichannel audio: the DP571 encoder, The DP572 decoder and the DP570 Multichannel Audio Tool. The final day involves the practical application of these devices using typical multichannel media in real-world situations.

Day 1 - The Dolby DP571 Dolby E encoder
Module 1 - DP571 Introduction
  • Foundational audio theory relating to Dolby E
  • Bit rates and the need for audio data compression
  • Dolby E technology overview
  • Dolby E characteristics
  • DP 571 applications
  • Content creation
  • Digital television distribution
  • Importance of valid video reference

Module 2 - Setup and status checks
Setup menu overview:
  • Programme configuration
  • Frame rate
  • Bit depth
  • Metadata source
  • Default metadata parameters
  • Input and output channel assignments

Status menu:
  • Main
  • External metadata (Dolby 570)
  • Video reference - accepted frame rates and tri-level sync
  • Timecode
  • Presets
  • PCM input
  • Metadata
  • Error
  • LED status indicators and their interpretation

Module 3 - Presets and hardware controls
  • Using presets (saving and recalling)
  • Important key sequences
  • Buttons and their function

Module 4 - The Setup menu in detail
  • Programme configuration
  • Operating mode
  • Output clock
  • Timecode input
  • Reversion mode
  • Metadata source
  • Frame rate
  • Bit depth
  • Metadata parameters and their use

Day 2 - The Dolby DP572 decoder
Module 5 - DP572 Introduction
  • Revision of theory covered in DP 571 instruction
  • DP 572 applications

Module 6 - Setup and status overviews
Setup menu overview:
  • Output routing
  • PCM bypass
  • PCM metadata and dial-norm level
Status menu overview:
  • Main
  • Decoding frame rate
  • Video reference - accepted frame rates and tri-level sync
  • Timecode in
  • PCM input
  • Error display and logging
  • LED status indicators and their interpretation

Module 7 b- Hardware overview
  • Important key sequences
  • Buttons and their function
  • Metadata output connection
  • PCM input and output delay requirements
  • LTC output

Module 8
Setup menu in detail:
  • Operating mode
  • Programme play
  • 48kHz pulldown
  • PCM bypass and bypass metadata settings
  • Bypass latency
  • Frame rate conversion facility
  • PCM metadata
  • Output routing
  • Switch out mode
  • Voiceover channel and attenuation
  • PCM channel sample rate conversion
  • Output clock
  • Headphone output options

Day 3 - the Dolby DP570 Multichannel Audio Tool
Module 9 - DP570 Introduction
  • Brief revision of theory covered in DP 571/DP572 instruction
  • DP 570 overview

Module 10 - Controlling the DP570
  • Main and shifted functions of the buttons
  • Navigating the front-panel menus
  • Programme/preset button use
  • Menu structures
  • Monitoring status
  • LED indicator interpretation

Module 11 - Setup menu in detail
  • Selecting parameters
  • Entering text
  • Other commands

Module 12 - Using the DP570 features
  • Naming programmes
  • Adjusting the monitor system
  • Generating and adjusting metadata
  • Monitoring downmixes
  • Measuring and setting the dialogue level
  • Setting dynamic range control
  • Channel mapping and input routing

Module 13 - Configuring the audio monitoring system
  • Opening the monitor setup Tab
  • Choosing bass management settings
  • Choosing back surround speakers
  • Emulator reversion
  • Setting delay values
  • Setting digital reference level

Module 14 - A guide to Dolby Metadata
  • Overview
  • Dialogue level
  • DRC
  • DRC profiles
  • Parameter definitions

Day 4 (system integration, exercises and assessment)
Module 15 - Practical
  • On the final day of training, the focus will be on real-world simulations, intended to replicate realistic workplace requirements. Knowledge of the individual Dolby units will be thoroughly tested and opportunity will be given to examine how these systems will integrate with the overall workflow in the particular area.
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