Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Schroeder Manfred F1

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Schroeder Manfred F1

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$20.00
Image title: 
Manfred Schroeder (right) subjectively evaluates the quality of the reverberated sound
Credit line: 
Bell Laboratories / Alcatel-Lucent USA Inc., courtesy of AIP Emilio Segrè Visual Archives, Physics Today Collection
Description: 

B. F. Logan (left) of Bell Telephone Laboratories adjusts an artificial reverberation filter (unit with hand grips, center) to obtain an all-pass characteristic -- that is, an equal response for sound at all frequencies. Manfred Schroeder (right), who supervises acoustics research at the Laboratories, subjectively evaluates the quality of the reverberated sound. Both researchers are perfecting a truly 'colorless' artificial reverberator.

Original format: 
1 photographic print (black and white; 8 x 7.5 inches)
Person(s): 
Schroeder, M. R. (Manfred Robert), 1926-