Manfred Robert Schroeder (12 July 1926 – 28 December 2009) was a German physicist, most known for his contributions to acoustics and computer graphics.
He joined the technical staff at Bell Labs in New Jersey (1954–) researching speech and graphics, securing forty-five patents.
Still affiliated with Bell, he rejoined University of Göttingen as Universitätsprofessor Physik (1969) becoming professor emeritus (1991).
With Ning 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.