Karl Eberhard Zwicker (15 January 1924, in

Öhringen Öhringen ( East Franconian: ''Ähringe'') is the largest town in Hohenlohe (district) in the state of Baden-Württemberg, in southwest Germany, near Heilbronn. Öhringen is on the railline to Schwäbisch Hall and Crailsheim. With a population o ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

– 22 November 1990, in

Icking Icking is a municipality in the district of Bad Tölz-Wolfratshausen in Bavaria in Germany. People * Anita Augspurg, lived in Icking from 1916 until she fled the Nazis * Dieter Borsche, actor, lived in Icking in the beginning of the '60s. * Bern ...

) was a German acoustics scientist and full professor at the

Technical University of Munich The Technical University of Munich (TUM or TU Munich; german: Technische Universität München) is a public research university in Munich, Germany. It specializes in engineering, technology, medicine, and applied and natural sciences. Establis ...

. Zwicker studied

physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...

and electrical engineering at the University of Stuttgart and was an assistant of . In 1967 he was appointed full professor of the newly founded Institute for Electro-Acoustics of the

. Zwicker developed a method for the computation of loudness, which became a German standard, DIN 45631. Zwicker, together with Richard Feldtkeller, was author of the standard work for psychoacoustics ''Das Ohr als Nachrichtenempfänger.'' (The Ear as Message Receiver). In 1964, at

Bell Labs Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial Research and development, research and scientific developm ...

, he discovered the Zwicker tone auditory illusion.

Literature

*''Die Grenzen der Hörbarkeit der Amplituden- und Frequenzmodulation von Tönen und ihre Berücksichtigung in der Übertragungstechnik und der Hörphysiologie''. Dissertation, Stuttgart 1952 *''Die elementaren Grundlagen zur Bestimmung der Informationskapazität des Gehörs''. In: ''Acustica''. Band 6, 1956, S. 365–381, Habilitationsschrift, 1956 *with Richard Feldtkeller: ''Das Ohr als Nachrichtenempfänger''. Hirzel, Stuttgart 1956; 2. Auflage, Hirzel, Stuttgart 1967 *with Ernst Terhardt als Herausgeber: ''Facts and models in hearing. Proceedings of the Symposium on Psychophysical Models and Physiological Facts in Hearing. Held at Tutzing, Oberbayern, April 22–26, 1974''. Springer, Berlin .a.1974 *''Psychoakustik''. Springer, Berlin .a.1982, *with Manfred Zollner: ''Elektroakustik''. Springer, Berlin .a.1984, ; 3. Springer, Berlin .a.1993, *with Hugo Fastl: ''Psychoacoustics. Facts and models''. Springer, Berlin .a.1990, ; 3. Auflage, Springer, Berlin .a.2007, *''Karl Eberhard Zwicker. 15.1.1924 – 22.11.1990. Feldpostbriefe aus dem Zweiten Weltkrieg an seine Eltern Wilhelm und Luise Zwicker und seinen Bruder Ulrich''. Bis, Univ., Oldenburg 1993, *DIN 45631, ''Berechnung des Lautstärkepegels aus dem Geräuschspektrum''. Verfahren nach Eberhard Zwicker *Herman A. O. Wilms
''In Memoriam. Eberhard Zwicker''
In: ''J. Audio Eng. Soc.'' Band 39, Nr. 3, März 1991, S. 199–200

External links

* {{DEFAULTSORT:Zwicker, Eberhard German acoustical engineers People from Öhringen Technical University of Munich faculty 1924 births 1990 deaths Engineers from Baden-Württemberg