Binaural research experiment, Parmly Foundation for Auditory Research, Illinois Institute of Technology, Chicago, Illinois, ca. 1946-1960 Armour Research Foundation (U.S.) Sound laboratories Anechoic chambers Illinois Institute of Technology. Parmly Foundation for Auditory Research Parmly Sound Laboratory (Chicago, Ill.) Photograph of an Illinois Tech student in an anechoic chamber at the Parmly Sound Laboratory. From press release attached to photograph: "Illinois Tech student, Jack Kiser, takes part in binaural hearing experiment at the Parmly Foundation for Auditory Research. Kiser is listening to two different tones in the completely silent (anechoic) chamber in order to determine their direction. Physicists at the Armour Research Foundation of Illinois Tech also use the Parmly chamber for acoustical research." Photographer unknown. Date of photograph unknown. Date range listed is approximate. 1946-1960 Still image Black and white photograph image/tiff islandora:1000555 0360401-I3-09-001 http://hdl.handle.net/10560/islandora:1000555 Office of Communications and Marketing photographs, 1905-1999 Illinois Tech Libraries Illinois Institute of Technology en Chicago (Ill.) In Copyright http://rightsstatements.org/vocab/InC/1.0/