SC-04-03 meeting report, Los Angeles, 2014-10

Report of the meeting of the SC-04-03 Working Group on loudspeaker modeling and measurement of the SC-04 Subcommittee on Acoustics, held in Los Angeles, CA. US., 2014-10-11

The meeting was convened by chair S. Hutt.

��� The agenda and the report of the previous meeting, held in Berlin, 2014-04-28, were approved as written.

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

Open Projects:

AES-X168 Characterization of loudspeaker systems
J. Woodgate and W. Klippel informed the group that IEC is developing an updated replacement standard for IEC 60268-5. Consequently SC-04-03 will suspend AES-X168 pending the release of the new IEC standard, at which time SC-04-03 will re-consider AES-X168.

AES-X194 Report on loudspeaker terminology
scope: to summarise formally-defined terminology currently existing in International standards from ISO and IEC, as well as the AES.
status: Draft discussed: no decision to publish yet.
Discussions: It was agreed that the AES-X194 terminology project is useful particularly in light of some non-AES references having inappropriate or erroneous definitions. The chair will begin reflector discussions to break the task into smaller bits in order to develop dialog.

AES-X223: Loudspeaker Driver Correlation Chamber
Background: Replicating non-anechoic loudspeaker driver measurements in different locations is a well known and challenging endeavor due to numerous influences and degrees of freedom. G. Hill with input from E. Simon has worked with M. Yonge to develop a first draft of this Information Document. Further work is required to modify some language to be technically more generic.



Hutt noted that ALMA is studying the overlap of some standards from different bodies and is planning a panel discussion at their meeting in Las Vegas, 2015-01.

New Projects:

No new projects were proposed.

New Business

There was no new business.

The next meeting will be scheduled in conjunction with the AES 138th Convention, Warsaw, Poland, 2015-05.

AES - Audio Engineering Society