Manfred Robert Schroeder (12 July 1926 – 28 December 2009) was a German physicist, most known for his contributions toacoustics andcomputer graphics. He wrote three books and published over 150 articles in his field.^[1]

Born inAhlen, he studied at theUniversity of Göttingen (1947–52), earning avordiplom inmathematics (1951) andDr. rer. nat. (1954) inphysics. His thesis showed how small regular cavities in concert halls cause unfortunate resonances.

He joined the technical staff atBell Labs inNew Jersey (1954–) researching speech and graphics, securing forty-five patents. WithBishnu Atal, he advanced and promotedlinear predictive coding (LPC) during the late 1960s to 1970s and then developedcode-excited linear prediction (CELP) in 1985. Still affiliated with Bell, he rejoinedUniversity of Göttingen asUniversitätsprofessor Physik (1969) becomingprofessor emeritus (1991).^[2] He was a visiting professor atUniversity of Tokyo (1979).

WithNing Xiang he was a promoter of a synchronous dual channel measurement method using reciprocal maximum-length sequences (2003). He led a famed study of 22 concert halls worldwide, leading to a comparison method requiring no travel.

• Schroeder, M. R. (2009).Number theory in science and communication : with applications in cryptography, physics, digital information, computing, and self-similarity. Berlin:Springer-Verlag.ISBN 978-3-540-85297-1.OCLC 310352248.
• Schroeder, M. R. (1991).Fractals, chaos, power laws : minutes from an infinite paradise. New York:W. H. Freeman.ISBN 978-0-7167-2136-9.OCLC 21522909.
• Schroeder, Manfred (1999).Computer Speech : Recognition, Compression, Synthesis. Berlin, Heidelberg: Springer Berlin Heidelberg Imprint Springer.ISBN 978-3-662-03861-1.OCLC 859587894.
• Hundert Jahre Friedrich Hund: Ein Rückblick auf das Wirken eines bedeutenden Physikers (1996)

• 1969 First Prize at the International Computer Art Competition for his application of concepts from mathematics and physics to the creation of artistic works.
• fellow of the Acoustical Society of America
• IEEE Fellow (1971).^[3]
• Audio Engineering Society fellow and Gold medalist (1972)
• Member of theUnited States National Academy of Engineering (1979), for "founding the statistical theory of wave propagation in multi-mode media and contributions to speech coding and acoustics".^[4]
• Fellow of theAmerican Academy of Arts and Sciences (1986).^[5]
• Helmholtz Medal of the German Acoustical Society
• 1975Max Planck Society appointed foreign scientific member
• New York Academy of Sciences member 1978
• Rayleigh Medal 1984 and 1987
• Gold Medal from theAcoustical Society of America (1991), for "theoretical and practical contributions to human communication through innovative application of mathematics to speech, hearing, and concert hall acoustics".^[6][7]
• ISCA Medal for Scientific Achievement from theInternational Speech Communication Association (2004).^[8]
• Technology Award from the GermanEduard Rhein Foundation (2004).^[9][10]

• 1926 births
• 2009 deaths
• People from Warendorf (district)
• German acoustical engineers
• 20th-century German physicists
• Scientists at Bell Labs
• University of Göttingen alumni
• Academic staff of the University of Göttingen
• Fellows of the IEEE
• Fellows of the American Academy of Arts and Sciences
• Members of the United States National Academy of Engineering
• Fellows of the Acoustical Society of America
• ASA Gold Medal recipients
• Engineers from North Rhine-Westphalia
• Academic staff of the University of Tokyo

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