Memorial Tributes Volume 4 (1991) / Chapter Skim
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Hugh S. Knowles
Hugh S. Knowles
Pages 177-182
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From page 177... ...
After graduating at the age of fourteen from high school in San Antonio, Texas, he attended Alabama Polytechnic Institute in 1920 and 1921 and served as a radio operator on various ships from 1921 to 1924. By working as a department editor for Popular Radio, associate radio editor for the New York Herald Tribune, and receiving 177
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From page 178... ...
loudspeakers, two- and three-way speaker systems, and the "bass reflex" vented loudspeaker enclosure improving lowfrequency response. He started, part time, his own consulting engineering practice in 1936, considered himself a consulting engineer, and was a registered engineer in Illinois from the initiation of that program in 1947.
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From page 179... ...
His broad interest in fundamental as well as applied aspects of acoustics led Knowles to emphasize the need for better measurements of loudspeakers, of parameters of the human head at a range of frequencies in relation to bone conductor hearing aids, and of the acoustic impedance of the ear canal plugged by the receiver. He repeatedly urged more realistic methods of measuring hearing aid performance than the usual free-fielc} tests of microphones and the conventional two-cubic centimeter coupler for the receivers.
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From page 180... ...
He was a fellow, president, honorary member, and Gold Medal recipient of the Audio Engineering Society; a fellow, president, and Silver Medal recipient in engineering acoustics of the Acoustical Society of America; a fellow and national chairman of the Institute of Radio Engineers (IRE) audio group (predecessor of the present Acoustics, Speech, and Signal Processing Society of the Institute of Electrical and Electronics Engineers)
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From page 181... ...
He was always a very generous donor, particularly to the Acoustical Society of America, international standards activities, and academic acoustics programs. The Knowles family and companies, continuing and expanding Hugh's long generosity to Northwestern University in support of the audiology program headed by Raymond Carhart, established the Hugh Knowles Center for Clinical and Basic Science in Hearing and Its Disorders.
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