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2005, 1

György Wersényi, András Illényi

Differences in dummy-head HRTFs caused by the acoustical environment near the head

language: English

received 27.12.2004, published 21.01.2005

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Filtering of the Head-Related Transfer Functions (HRTFs) is the first and most important part during the perception of directional information in spatial hearing. A computer-controlled dummy-head measurement system was installed in an anechoic room with 1 degree horizontal and 5 degrees vertical resolution. Differences in the measured HRTFs caused by changes of the acoustical environment near the head are calculated. Effects of “everyday objects” like caps, hair, glasses and clothing on the fine structure of the HRTFs are presented.

15 pages, 6 figures

Сitation: György Wersényi, András Illényi. Differences in dummy-head HRTFs caused by the acoustical environment near the head. Electronic Journal “Technical Acoustics”,, 2005, 1.


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György Wersényi was born in Gyor, Hungary, in 1975. He received a M.Sc. degree in electrical engineering from the Technical University of Budapest in 1998. He spent another four years as a full-time Ph.D. student there in the “Békésy György” Acoustic Research Laboratory. After spending the academic year 2000-2001 with research scholarship at the Brandenburg Technical University in Cottbus, Germany, he received a Ph.D. degree in 2002 from the BTU Cottbus.
He is now lecturer and assistant professor at the Széchenyi István University in Gyor. He is the head of the multimedia laboratory and is responsible for international relations of the Department of Telecommunications. He frequently visits the Fachhochschule Leipzig, Germany as invited lecturer for electroacoustics.
Dr. Wersényi is a member of the Hungarian Acoustical Society (OPAKFI) and of the AES. His areas of interest include spatial hearing, acoustic measurements, psychological acoustics, auditory modelling, decoding and transmission of acoustical information.

e-mail: wersenyi(at)


András Illényi was born in 1932 in Budapest, Hungary. He graduated at the Faculty of Physics and Mathematics of Loránd Eötvös University of Natural Sciences in Budapest, in the year 1956. His activity is related to many fields of acoustic sciences and technical applications. The most important fields of interest are directional and binaural hearing, noise and vibration control, practical applications. He has more than 80 publications on the fields of physical acoustics, measuring techniques, sound quality, HRTFs and binaural hearing, holophony and room-acoustics. Elaborated licences are protected in more than 50 countries; three from them in the USA.
At the moment he is head of the George Békésy Acoustic Research Laboratory, Department of Telecommunication and Telematics, at the Technical University of Budapest.
He is member of the Acoustic Complex Committee of the Hungarian Academy of Sciences since 1969, and head of the committee from 1995-1998. Member of the following societies in abroad: Acoustical Society of America, Audio Engineering Society, Deutsche Arbeitsgemeinschaft für Akustik, Akustisches Verein in Österreich, and since 1998 Board Director of I-INCE. He is president of the National Noise Committee in the Bureau of Standardisation Hungary since 1992 and also in OPAKFI (Scientific Society for Optics, Acoustics, Motion Pictures and Theatre-technology).
Dr. Illényi won prizes for “Excellent Inventor” gold medal (1972, 1973, 1975), “George Békésy” medal (1983), “Pro Silentio” medal (1990), “Kempelen Farkas” prize (1994).

e-mail: illenyi(at)