Manfred R. Schroeder

Manfred Robert Schroeder ( born July 12, 1926 in Ahlen, † 28 December 2009) was a German theoretical physicist who mainly dealt with acoustics.

Schroeder was employed as a youth radio hobbyists and during the Second World War, among others in the Navy in the Netherlands as a radar operator. Schroeder studied Mathematics ( bachelor's degree 1951) and physics at the University of Göttingen, where he received his doctorate at Erwin Meyer, 1952 ( on the distribution of natural frequencies in cavities ), and went in 1954 in the USA, over the next 15 years in at the ATT Bell Laboratories Murray Hill worked in New jersey (and further to 1987 was an external member ), from 1958 to 1969 as head of the acoustics and speech research. In 1969 he became professor at the 3rd Physics Institute in Göttingen, where he became director after the death of Meyer and 1991 Emeritus.

He is best known for studying the acoustics of concert halls, which he improved, among others with special designed according to number-theoretic principles reflectors. His first advice in this area he had for the concert hall of the Lincoln Center in New York in 1962, where he and colleagues developed, among other methods for the measurement of reverberation times. At Bell Labs he also invented codes for data compression (Linear Predictive Coding, Code Excited Linear Prediction), which are used for example in mobile phones today, and dealt with synthetic speech production. Not least, he is known for some books (especially number theory, power function scaling laws in fractals ) illustrate by way of example and with didactic skill the applicability of mathematics in various fields. Schroeder was also involved in computer graphics.

Schroeder received the Gold Medal of the Acoustical Society of America, the Rayleigh Medal of the British Institute of Acoustics and the Helmholtz Medal of the German Society of Acoustics. In 2004 he received the Technology Award of the Eduard Rhein Foundation. He was a member of the National Academy of Sciences of the United States, the American Academy of Arts and Sciences, the New York Academy of Sciences and the Academy of Sciences in Göttingen. He was also " External Scientific Member" of the Max Planck Institute for Biophysical Chemistry in Göttingen.

He was married and had three children.

Writings

  • Number Theory in Science and Communication - With Applications in Cryptography, Physics, Digital Information, Computing, and Self - Similarity. Springer, 1984. 5th edition, 2009.
  • Computer Speech: Recognition, Compression, Synthesis. Springer, 1999, ISBN 3,540,643,974th
  • Fractals, Chaos, Power Laws: Minutes from at Infinite Paradise. Freeman, ISBN 0716723573rd
  • Number theory and the real world. In: Mathematical Intelligencer. No. 4, 1985.
  • Number theory in physics. In: Physical leaves, Volume 50, 1994, pp. 1123-1128. . online
  • The acoustics of concert halls: Physics and Psychophysics, Physical leaves, Volume 55, 1999, pp. 47-50, online
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