AES 103rd Convention

WORKSHOPS
Saturday, September 27
W5 - W8

W-5 Guerrilla Acoustics
Saturday, September 27, 9:00 am
Chairman: Troy B. Jensen, RPG Diffusors, Inc.
Panelists: Russ Berger, Russ Berger Design Group; Peter D'Antonio, RPG Diffusor Systems, Inc.; Neil Grant, Harris, Grant Associates; John Storyk, Walters-Storyk Design Group

This workshop examines the design process of project studios and illustrates the possible pitfalls that can overwhelm the best of intentions. The focus is on issues that are typically overlooked when first venturing into a project of this magnitude. It is during the early part of the design phase that many of the most important considerations are neglected in favor of selecting new equipment and choosing interior finishes. The panelists will examine these considerations which often derail a project from achieving its intended goal.

 
W-6 Microphone And Loudspeaker Technology
Saturday, September 27, 9:00 am
Chairman: Michael Solomon, Cardone Solomon Associates
Panelists: James Anderson, Engineer/Producer; Rob Colby, Cubtones Concert Audio; Tom Jung, DMP; Ulrich Roth, beyerdynamic; Jurgen Wahl, NeumannUSA; Gary Hardesty, VP Eng., EAW; David Gunness, EAW; Ken Porter, Spectrum Sound

This workshop will explore the critical design elements and parameters that contribute to high-quality transducer performance including the latest developments in true digital microphones and loudspeaker systems. After addressing the design phase, the participants will also discuss the performance demands placed on transducers in the real-time world of the studio, remote recording, and critical touring sound applications.

W-7 Electromagnetic Compatibility In Audio Signal Processing Systems
Saturday, September 27, 2:00 pm
Chairman: Neil Muncy, Neil Muncy Associates, Ltd.
Panelists: Bill Whitlock, Jensen Transformers, Inc.; John Woodgate, J. M. Woodgate and Associates

In 1947, founding year of the AES, the only consumer release format for recorded sound was the 78 rpm phonograph record. The vast majority of the audience for recorded sound listened to AM radios, which under ideal conditions might afford a dynamic range of as much as 35-40 dB! Fifty years later, the potential dynamic range of recorded sound available to consumers on a compact disc and other media has almost tripled. Curiously, the evolution of technology required to minimize electrical noise in audio signal processing systems has not always kept pace.

The totally analog vacuum tube systems in use in 1947 (in which 20 kHz was high frequency) have been replaced today by hybrid analog/digital systems wherein analog, digital, video, and radio frequency (RF) signals (reaching into hundreds of megahertz) routinely enter and leave the same devices. Unacceptable levels of electrical noise in complete systems now often result from equipment incompatibilities which were of little consequences in the days when analog tape noise was the main problem. Electromagnetic compatibility (EMC) has to do with achieving a level of system electrical performance wherein a system does not interfere with other nearby systems, and is also immune to interference generated by both its own components and other unrelated systems.

The workshop focuses on three main areas: 1) The recent work of AESSC-05-05 in addressing a number of long-standing equipment design practices that restrict EMC; 2) Ongoing developments in European and Australian EMC controls and the probable future of similar controls in other countries; and 3) Future equipment and system design considerations required to achieve even higher levels of EMC.

W-8 Forensic Audio
Saturday, September 27, 2:00 pm
Chairman: Tom Owens, Owl Investigations
Panelists: Anthony Pellicano, Forensic Audio Labs; James Reams, JBR Technology (F.B.I., retired); Mark Schubin, Mark Schubin Associates; Lonnie Smrkovski, Smrkovski & Associates (Michigan State Police, retired)

This workshop addresses the issues of the history of forensic audio from the Nixon tapes to the present day. Also included will be a discussion on the history, training, new methodology and equipment, and forensic audio for video tapes. Speakers will include the former head of the F.B.I. Audio Lab, former member of the Michigan State Police Audio Lab, chairman of the WG-12 Forensic Audio Work Group, private investigators, and Live from the Met video and audio experts.


WORKSHOPS

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