Report ITU-R BS.2493-1
Policy on Intellectual Property Right (IPR)
Annex 1 AC-4 digital audio compression standard
1 Immersive audio
1.1 Channel-based
approach
1.2 Object-based
approach
1.2.1 Encoding
and decoding (core and full) scenarios for immersive audio
1.2.2 Object-based
(spatial object groups) immersive
1.2.3 Channel-based
immersive
2 Audio personalization
2.1 Overview of
presentation-based approach
2.2 Multi language
application
2.3 Audio description
application
2.4 Dialogue
enhancement application
2.4.1 Basic
modes for legacy content
2.4.2 Separate
dialogue mode
3 Loudness management
3.1 Intelligent
loudness management in cascaded workflows
4 Dynamic range management
4.1 Managing dynamic
range for different device types
4.1.1 Dynamic
range control (DRC)
4.1.2 Simultaneous
outputs
5 Content replacement and
insertion
5.1 Audio/Video frame
alignment
5.2 Seamless switching
Annex 2 MPEG-H Audio System
1 Overview of the MPEG-H
Audio System
1.1 Immersive sound
1.2 Personalization
and interactivity
1.3 Universal delivery
2 MPEG-H Audio Metadata
2.1 Metadata structure
2.2 Metadata example
2.3 Personalization
use case examples
2.3.1 Advanced
Accessibility
2.3.2 Dialogue
Enhancement (DE)
2.3.3 Multi-language
services
2.3.4 Personalization
for sports programmes
2.3.5 Presentation
of MPEG-H Audio services
2.4 Interoperability
with the Audio Definition Model
3 MPEG-H Audio Stream
3.1 Random Access
Points
3.2 Configuration
changes and A/V Alignment
4 Distributed user interface
processing
5 Multi-stream environment
6 System sounds and voice
assistant sounds
Annex 3 DTS-UHD Audio format
1 Immersive audio
1.1 Channel-based
Audio
1.2 Object-based Audio
2 Stream construction
2.1 Metadata
2.2 Audio Objects
3 Presentations
3.1 Presentation
methodology
4 Personalization
4.1 Multi language
4.2 Sports
personalization
4.3 Accessibility
services
4.3.1 Dialogue
enhancement
4.3.2 Audio
description
5 Dynamic management
5.1 Loudness
5.2 Dynamic Range
Control (DRC)
6 Multi-stream support
Annex 4 Application of the Audio Vivid format
1 Characteristics of Audio
Vivid
1.1 Overview of the
coding system
1.2 General Full-Rate
Audio Encoding
1.3 3D audio coding based on the use of Artificial Intelligence
1.4 High Order
Ambisonics – spatial coding based on virtual loudspeaker projection
1.5 Flexible metadata
system
2 Information on the
application of Audio Vivid
2.1 Rollout of Audio Vivid
2.2 Audio Vivid
Application in the Thousands of Screens in Hundreds of Cities Program
2.2.1 Introduction
to the Thousands of Screens in Hundreds of Cities Program
2.2.2 Portable
Audio Platform in the Thousands of Screens in Hundreds of Cities Program
2.2.3 Portable
Audio Service in the Thousands of Screens in Hundreds of Cities Program
2.3 Audio Vivid
Application for OTT applications
2.4 In car Audio Vivid
Application