The meeting was convened by chair J. Stewart.
The agenda and the report of the previous meeting, 2007-05-05, were accepted as written.
AES-1id-R: Review of AES-1id-1991 (r2003): Plane-Wave Tubes: Design and Practice
Project scope: to establish, expand, and improve the practice for the design and use of plane-wave tube measurement techniques, as recommended in section 2.2.1 of AES2-1984, "Recommended Practice Specification of Loudspeaker Components Used in Professional Audio and Sound Reinforcement."
Assigned to: SC-04-03, Initiated: 2003
Intent: Revision, Target: 2008
Current goal: PTD, Goal date: 2007-10
Status: Amendments awaited from M. Buck prior to secretariat-formatting
Discussion: J. Stewart to contact M. Buck.
AES-5id-R: Review of AES-5id-1997 (r2003): AES information document for Room acoustics and sound-reinforcement systems - Loudspeaker modeling and measurement - Frequency and angular resolution for measuring, presenting and predicting loudspeaker polar data
Project scope: This document provides guidelines for measuring, presenting, and predicting polar data from a single acoustic source or from an array of acoustic sources. It describes and quantifies possible errors, defined as differences in numeric values, associated with measurement resolution, presentation resolution, prediction techniques and measurement environments.
Assigned to: SC-04-03, Initiated: 2003-03
Intent: Review, Target: 2008
Current goal: Status report, Goal date: Continuing
Status: No action requested or required
Discussion: Invitation to attend SC-04-01 and/or review minutes.
AES2-R: Review of AES2-1984 (r2003): AES Recommended Practice - Specification of loudspeaker components used in professional audio and sound reinforcement
Project scope: This Recommended Practice establishes a set of primary specifications to be followed by manufacturers in describing loudspeaker components used in professional audio and sound-reinforcement system design.
Assigned to: SC-04-03-A, Initiated: 2003
Intent: Revision, Target: 2007
Current goal: PTD, Goal date: 2007-07
Status: Secretariat-formatted draft ASAP, accepting latest revisions. Concentrate on the simple doc with clarified scope - potentially a new project for clarity and to avoid confusion with intent of existing AES2 publication.
Discussion: The modified scope proposed in Vienna was reviewed. R. Sauro re-iterated his "elegant" reflector proposal to create four sections:
AES-X129 : Loudspeaker Distortion Perception and Measurement Project scope: to research the correlation of loudspeaker distortion perception with old and new distortion measures.
Assigned to: SC-04-03-D, Initiated: 2001-05
Intent: Information document, Target: 2008
Current goal: Status report, Goal date: 2007-10
Status: Continuing work in task group
Discussion: The AES-X129 task group met later in the conference and will attempt to begin a summary document via reflector discussions.
Many missed the ALMA liaison meeting. An ad-hoc IEC meeting was held regarding power testing of powered loudspeaker systems.
The five project proposals that resulted from the group's email reflector activity will be re-reviewed for applicability to the proposed sections of AES2
A new project request to better define filter Q was delegated to the Technical Committee on Signal Processing
The next meeting wil be scheduled to be held in conjunction with the 124th AES convention in Amsterdam, Netherlands, 2008-05.