Eberhard Zwicker

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Karl Eberhard Zwicker (born January 15, 1924 in Öhringen ; † November 22, 1990 in Icking ) was a German acoustician and professor for electroacoustics at the Technical University of Munich .

life and work

Eberhard Zwicker, the son of the grammar school teacher Wilhelm Zwicker, studied physics and electrical engineering at the Technical University of Stuttgart and was later assistant to Richard Feldtkeller . In 1956, the TH Stuttgart awarded him the Venia legendi for electroacoustics. In 1967 he became full professor and director of the newly created Institute for Electroacoustics at the Technical University of Munich.

Together with Richard Feldtkeller, Zwicker was the author of the fundamental standard work on psychoacoustics : The ear as a message receiver. This is about the laws of the connection between hearing and sound . The work is based on research and verification work mainly from the 1950s and 1960s and coined terms such as listening threshold and frequency group .

Zwicker developed a method for calculating the volume level , which was standardized as DIN 45631. The pince-nez is named after him.

Zwicker was married and has two children.


  • The limits of audibility of the amplitude and frequency modulation of tones and their consideration in transmission technology and hearing physiology . Dissertation, Stuttgart 1952
  • The elementary basics for determining the information capacity of the hearing . In: Acustica . Volume 6, 1956, pp. 365-381, habilitation thesis, 1956
  • with Richard Feldtkeller: The ear as a message receiver . Hirzel, Stuttgart 1956; 2nd edition, Hirzel, Stuttgart 1967
  • with Ernst Terhardt as editor: Facts and models in hearing. Proceedings of the Symposium on Psychophysical Models and Physiological Facts in Hearing. Held at Tutzing, Upper Bavaria, Apr. 22-26, 1974 . Springer, Berlin [a. a.] 1974
  • Psychoacoustics . Springer, Berlin [a. a.] 1982, ISBN 3-540-11401-7
  • with Manfred Zollner: electroacoustics . Springer, Berlin [a. a.] 1984, ISBN 3-540-13509-X ; 3rd edition, Springer, Berlin [u. a.] 1993, ISBN 3-540-56600-7
  • with Hugo Fastl: Psychoacoustics. Facts and models . Springer, Berlin [a. a.] 1990, ISBN 3-540-52600-5 ; 3rd edition, Springer, Berlin [u. a.] 2007, ISBN 978-3-540-23159-2
  • Karl Eberhard Zwicker. January 15, 1924 - November 22, 1990. Field post letters from the Second World War to his parents Wilhelm and Luise Zwicker and his brother Ulrich . Bis, Univ., Oldenburg 1993, ISBN 3-8142-0436-0

See also

Loudness calculation


  • DIN 45631, calculation of the volume level from the noise spectrum . Method according to Eberhard Zwicker
  • Herman AO Wilms: In memoriam. Eberhard Zwicker (PDF; 382 kB). In: J. Audio Eng. Soc. Volume 39, No. 3, March 1991, pp. 199-200

Web links

Individual evidence

  1. tu-muenchen.de: Zwicker-Ton