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