SC-02-02 meeting, Online, 2021-10

Report of the meeting of the SC-02-02 Working Group on Digital audio interfaces, held online, 2021-10-04.

Present were John Grant, Richard Cabot, Bruce Olson, Paul Treleaven, Anthony Kuzub, Junichi Yoshio, Al Walker, Andy Rosen, Stephen Scott, Jim Meyer

The formal notice on patent policy was read.

The agenda was approved as written.

There were no comments on the report of the previous meeting, held online, 2021-05-12.

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

Open projects:

AES41-x-R Review of AES41-x-2012 (r2017): AES standard for digital audio - Audio-embedded metadata (all five parts, x = 1 to 5 inclusive)
AES52-R: Review of AES52-2006 (r2017), AES standard for digital audio engineering - Insertion of unique identifiers into the AES3 transport stream
AES55-R: Review of AES55-2012 (r2017); AES standard for digital audio engineering - Carriage of MPEG Surround in an AES3 bitstream

All the above are due for revision or reaffirmation in 2022. All were recommended for reaffirmation.

Other projects
No activity.


S Scott and A Rosen reported on early stage proposals in SMPTE TC32NF to improve the transmission of timecode over networks; there was a suggestion that there was little support for it but that could be because it had not been widely publicised. B Olsen suggested that it should also be put forward as an AES project, and that that would give it more visibility in SMPTE.

A Kuzub reported that MIDI 2.0 is also working on issues with SMPTE time code.

New projects

No new projects were proposed.

New business

No new business was raised.

The next meeting will be scheduled in conjunction with the AES 152nd Convention, to be held online in May 2020.

AES - Audio Engineering Society