[Toronto AES Logo]

October 1995: Volume 4, Number 2


The 99th AES Convention Review


Get an informative summary of the Papers, and see the best of the Exhibits.

hosted by John Vanderkooy, and Stan Lipshitz, Audio Research Group

University of Waterloo

Date: Tuesday, October 24, 1995

Time: 7:30 pm

Place: Ryerson Eaton Lecture Theatre, Rogers Communications Building

Address: 80 Gould Street, Toronto, Ontario

What's Inside

This Month's Meeting Preview

Our annual AES Convention Review:

The best of the papers and floor exhibits

from the 99th AES Convention...


John Vanderkooy and Stan Lipshitz are back again to give us their yearly review of the papers presented at the annual AES convention, this year held in New York. For those who couldn't attend the convention, this is an execellent opportunity to get an overview of the papers, presented in an informative and digestable format by John and Stan.

And as usual, our members have taken their cameras onto the Exhibits floor and will present slides of what's new and gee-whiz in the audio world.


John Vanderkooy

Audio Research Group, University of Waterloo

John Vanderkooy was born in The Netherlands in 1941, but received all of his education in Canada, with a B. Eng. degree in engineering physics in 1963 and Ph.D. in physics in 1967, both from McMaster University in Hamilton, Ontario. For some years he followed his doctoral interests in low- temperature physics of metals at the University of Waterloo, where he is currently a professor of physics. However, since the late 1970s, his research interests have been mainly in audio and electroacoustics.

A fellow of the AES and a member of the IEEE, Dr. Vanderkooy has contributed a variety of papers at conventions and to the Journal. Together with his colleague Stanley Lipshitz and a number of graduate and undergraduate students, they form the Audio Research Group at the University of Waterloo.

Dr. Vanderkooy's current interests are digital audio signal processing, measurement of transfer functions with maximum-length sequences, transducers, diffraction of loudspeaker cabinet edges, and most recently sub-surface analysis techniques using maximum-length sequences.

Stanley Lipshitz

Audio Research Group, University of Waterloo

Stanley P. Lipshitz is a professor in both the departments of Applied Mathematics and Physics at the University of Waterloo, Ontario, Canada. There, in addition to the normal teaching associated with a university position, he conducts his own and supervises graduate student research in audio and electroacoustics as a member of the university's Audio Research Group.

Prior to joining the faculty of the University of Waterloo in 1970, he studied in South Africa, the country of his birth, where he received his Bachelors (1964), Masters (1966) and Ph.D. (1970) degrees in applied mathematics. He is now a Canadian citizen.

He is a fellow of the Audio Engineering Society, and served as a governor for the periods 1984- 1986, 1987-1992, and as its President for the year 1988-1989. He is a member of the Review Board of the Society's Journal, and serves on the Publications Policy Committee. Other society memberships include the IEEE, the Acoustical Society of America, and the Canadian Acoustical Association. He is also Vice- President and recording engineer of the Kitchener-Waterloo Chamber Music Society.

He has presented numerous technical papers at AES Conventions, both in North America and overseas, on a wide range of topics including amplifier design, psychoacoustics, loudspeaker crossover design, electroacoustic transducer measurement techniques, acoustics, and digital signal processing for audio.

He has participated in many educational workshops and seminars on audio topics including loudspeaker measurement, stereo microphone techniques, and the fundamentals of digital audio. His publications have appeared frequently in the AES Journal and elsewhere.

His current research interests include transducer design and measurement, digital signal processing for audio including the mathematical theory of dithered quantizers and noise shapers, the calculation of acoustic diffraction, adaptive room deconvolution, and the characterization and design of surround-sound systems. He has consulted for a number of companies on audio-related matters.

In October 1993, he received the AES Silver Medal Award for his research contributions to audio.

What's Inside

What's New

Horizons has moved!!

The new phone number is 416/480-0181.

This will allow more members access to the system without incurring a long distance charge.

Other happenings on Horizons: In order to make the board more useful as a resource to professionals dealing with the technical aspects of the arts, select internet news groups are now available. These include:

  • rec.audio.pro
  • rec.arts.movies.production
  • rec.arts.theatre.stagecraft
  • comp.cad.autocad
  • comp.cad.pro-engineer
  • sci.electronics.repair
plus many more (more are added as they are requested.)

If you have any questions please contact: gspecht@hookup.net or pcook@vex.net

What's Inside

© Copyright 1995 Audio Engineering Society Toronto Section Bulletin

Articles may be used with the Author's Permission. Contact the Bulletin Editor: earlm@opentext.com

Editor: Earl McCluskie Layout Editor: Lee White

The Bulletin is prepared in print by Lee White, and on Horizon and the Internet by Earl McCluskie.