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Contributors
Professor Dr. Ing. Habil. Wolfgang AhnertDr. Wolfgang Ahnert graduated in Dresden in 1975 and from 1975 to 1990
he worked in an engineering office in Berlin and in 1990 founded ADA
Acoustic Design Ahnert. In 2000 he founded SDA Software Design Ahnert
GmbH to increase the output in writing source codes for acoustic and elec-
tronic applications. In 2002 the ADA foundation was established to support
universities and colleges with acoustic software including EASE and the
measurement tools EASERA and EASERA SysTune. The Ahnert Feistel
Media Group was established in 2006 to coordinate all the above activities.
In 1993 he became an honorary professor at the Hochschule fuer Film
und Fernsehen Potsdam, and in 2001 he became an honorary professor at
Lomonossov University in Moscow. Since 2005 he has been a visiting
professor at the Rensselaer Institute for Architecture in Troy, New York.
Dr. Ahnert has been a member of the AES since 1988 and was made a
fellow of the Audio Engineering Society in 1995. He has been a fellow of the Acoustical Society of America
since 2005. He is a member of the German DEGA and the British Institute of Acoustics. More than sixty five
scientific lectures by Dr. Ahnert have been published.
Dr. Ahnert is one of the authors of the book Fundamentals of Sound Reinforcement (1981, and 1984 in
Russian) and the book Sound Reinforcement—Basics and Practice (1993, and fully updated in English in
2000, in Chinese in 2002, and in Russian in 2003). He wrote with coauthors chapters in the 3rd edition of
Handbook for Sound Engineer, [Handbuch der Audiotechnik] (2008 Springer) and Akustische Messtechnik
(2008 Springer), both in German.
Ronald G. AjemianRonald G. Ajemian is an instructor at the Institute of Audio Research, New
York, NY, where he has been teaching audio technology for over 25 years.
Ron was employed with the Switched Services Department of Verizon for
32 years in New York City and recently took an early retirement.
Mr. Ajemian is a graduate of RCA Institute and the school of electrical
engineering at Pratt Institute of Brooklyn, NY. He has contributed many arti-
cles in the field of audio electronics, telephony, and fiber optics.
Mr. Ajemian is a member of many professional organizations, including
the Audio Engineering Society (AES), the Telephone Pioneers of America,
Communication Workers of America (CWA), and the Optical Society of
America to name a few. He is sometimes referred to as Dr. FO (fiber optics),
for his expertise in the field of fiber optics. Mr. Ajemian is also a guest
lecturer at NYU and for the Audio Engineering Society. Mr. Ajemian held
the position of the Chair of the AES New York Section in 2000–2001 and is currently the Chair of the AES
Standards Task Group SC-05-02-F on Fiber Optic Connections.
Mr. Ajemian is owner and consultant of Owl Fiber Optics in New York, specializing in fiber optic tech-
nology and education for proaudio/video and broadcast.