Memorial Tributes Volume 15 (2011) / Chapter Skim
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Manfred Robert Schroeder 1926-2009
Manfred Robert Schroeder 1926-2009
Pages 350-355
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From page 351... ...
like many science-oriented young people of the time, he was attracted to radio technology. He built short-wave receivers and transmitters and, despite government restrictions, surreptitiously listened to broadcasts from the BBc (British Broadcasting corporation)
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From page 352... ...
Manfred was speedily offered, and accepted, employment in the research division of Bell labs in Murray Hill, New Jersey. There, his research shifted toward telecommunications, and he devised unique designs for voice coders and for bandwidth conservation in speech transmission.
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From page 353... ...
in goettingen he managed the institute, scheduled lectures, and supervised doctoral students working on theses in acoustics, many of whom found significant careers and recognition in industry and academia. In the United states he continued collaboration on speech coding for limited bandwidths and, in partnership with Bishnu atal, expanded an extremely successful coding method based on linear prediction that is used for cell phone communications today.
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From page 354... ...
sound behavior in enclosures, an issue dear to Manfred's heart from his doctoral thesis days, led him to invent an advantageous practical method for measuring reverberation time by integrating the acoustic response of a room to a tone burst. His close familiarity with relationships between natural modes and frequency response, and his skill with computation, produced new methods for simulating the acoustic characteristics of enclosures, using rapidly emerging digital computers.
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From page 355... ...
Communications research, his many colleagues, and his numerous students whose career paths he influenced will all share the deep sense of loss. Manfred is survived by his wife anny, in germany and the United states; his daughter Marion in Bremen, germany; his two sons, Julian in la Jolla, california, and alexander in san francisco; and his four grandchildren.
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