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 www.aes.org/standards/meetings/project-status.cfm 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.
Liaisons:
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.
