|
1.
|
Clear description of the referenced document:
|
|
|
|
|
2.
|
Status of approval:
|
|
|
This is an approved document by ATSC (Advanced Television Systems Committee).
|
|
3.
|
Justification for the specific reference:
|
|
|
This document standardizes the AC-4 audio system for use in the ATSC 3.0 Digital Television System and establishes a set of constraints for use within ATSC 3.0 broadcast emissions.
|
|
4.
|
Current information, if any, about IPR issues:
|
|
|
None
|
|
5.
|
Other useful information describing the "Quality" of the document:
|
|
|
None
|
|
6.
|
The degree of stability or maturity of the document:
|
|
|
Approved in March 2023.
|
|
7.
|
Relationship with other existing or emerging documents:
|
|
|
None
|
|
8.
|
Any explicit references within that referenced document should also be listed:
|
|
|
[1] ETSI: “Digital Audio Compression (AC-4) Standard; Part 1: Channel based coding,” Doc./
TS 103 190-1 V1.3.1 (2018-02), ETSI, Sophia Antipolis Cedex, France./
[2] ETSI: “Digital Audio Compression (AC-4) Standard; Part 2: Immersive and personalized/
audio,” Doc. TS 103 190-2 V1.2.1 (2018-02), ETSI, Sophia Antipolis Cedex, France./
[3] IEEE: “Use of the International Systems of Units (SI): The Modern Metric System,” Doc. SI/
10, Institute of Electrical and Electronics Engineers, New York, NY./
[4] ISO/IEC: “Information technology – Dynamic adaptive streaming over HTTP (DASH) – Part/
1: Media presentation description and segment formats,” Doc. 23009-1:2019, International/
Standards Organization, Geneva, Switzerland./
[5] IETF: BCP 47, “Tags for Identifying Languages,” Internet Engineering Task Force, Reston,/
VA, September 2009./
[6] ATSC: “Techniques for Establishing and Maintaining Audio Loudness for Digital/
Television,” Doc. A/85:2013, Advanced Television Systems Committee, Washington, DC.,/
March 12, 2013. See also A/85:2013 Corrigendum No. 1, “SPL,” approved 11 February 2021./
[7] ISO/IEC: “Information technology -- Coding of audio-visual objects -- Part 12: ISO base/
media file format,” Doc. 14496-12:2015, International Standards Organization, Geneva,/
Switzerland./
[8] ATSC: “ATSC Digital Television Standard, Part 6 – Enhanced AC-3 Audio System/
Characteristics,” Doc. A/53 Part 6:2013, Advanced Television Systems Committee,/
Washington DC, 7 August 2013.
|
|
9.
|
Qualification of
ATSC:
|
|
|
|
|
10.
|
Other (for any supplementary information):
|
|
|
None
|
|
