SC-02-12 meeting, Online, 2022-10

Report of the meeting of the SC-02-12 Working Group on Audio Applications of Networks of the SC-02 Subcommittee on Digital Audio, held online in connection with the 154th Convention, 2023-05-04.

The meeting was convened by chair Morten Lave.

The formal notice on patent policy was read.

The report of the previous meeting, held online, in connection with the 153th Convention, 2022-10-14, was approved as written.

The agenda was approved as posted.

In attendence were Morten Lave, Richard Cabot, Junichi Yoshio, Peter Stevens, Al Walker, Kent Terry, Andreas Hildebrand, Paul Treleaven, John Grant, Jeff Berryman, Satoshi Oode, Fred Morgenstern, Gints Linis, Nicolas Sturmel, Terry Holton, Stephen Scott

Projects assigned to this group but not mentioned here had no action requested or required - see for details.

Open Projects:

AES67-R - Review of AES67-2018 , AES standard for audio applications of networks - High-performance streaming audio-over-IP interoperability

The group is working on the revision in weekly meetings, slowed down a bit due to scheduling conflicts but good progress since last. Working through issue by issue.

The highest priority issues are now resolved. Ambiguities have been fixed etc. Should be able to finish in 2 months if things go well.

AES70-1-R Review of AES70-1-2018: AES standard for audio applications of networks - Open Control Architecture - Part 1: Framework

AES70-2-R Review of AES70-2-2018: AES standard for audio applications of networks - Open Control Architecture - Part 2: Class structure

AES70-3-R Review of AES70-3-2018: AES standard for audio applications of networks - Open Control Architecture - Part 3: Protocol for TCP/IP networks

The 3 revisions are currently being reviewed in SC-2-12L. It is about 75% done and hope to finish at the end of May and be ready for comments June 1 with an aim to publish in July.

AES74-R Review of AES74-2019 AES standard for audio applications of networks -
Requirements for Media Network Directories and Directory Services

No actions, review in one year.

AES-X242 Streaming audio metadata over IP

Still waiting for SMPTE but expect to be in the publication queue by the end of the year.

AES-X243 Audio applications of networks - Using AES70 for managing AES67 and SMPTEST 2110-30 media stream connections

The draft is done except for one little part in an annex. However it can not be published until after the AES30-1/-2/-3 is published.

AES-X252 AES70 Milan Adaptation

Expect to pass to X252 by end of year.

AES-X257 Using AES70 to manage Audinate DanteĀ® media transport

Expected to become AES70-23, discussions are ongoing in the OCA Alliance but expect move into AES soon and be done by November.

There is a hope that Audinate will be involved at least in reviewing.


Liaison with MPEG (John Grant)

Nothing new to report.

Liaison with ETSI (John Grant)

Signaling protocols are now published.


Two new parts for compressed audio.


Some progress, a meeting is scheduled in a few weeks.

Liaison with Avnu ProAV AVTP (Morten Lave)

Nothing to report.

Next Meeting

The next meeting will be scheduled in conjunction with the AES 155th Convention in early October 2023, it will be virtual. Standard meetings will likely be scheduled the week before the actual show.

AES - Audio Engineering Society