Signedunsigned
Historical AttributesThis is a picture of a the anechoic chamber dubbed "Beranek's Box." Constructed in 1942 on Oxford Street (Harvard University), the four-story-tall concrete box was lined with 20,000 large fiberglass wedges. It was destroyed 25 years later due to a lack of interest in acoustical research at Harvard University.
A similar picture, very likely made at the same time as this one, features in the article by Beranek and Sleeper that is listed in the primary sources. That one is a view facing away from the door.
Primary SourcesLeo Beranek and Harvey P. Sleeper, Jr., "The Design and Construction of Anechoic Sound Chambers," Journal of the Acoustical Society of America 18 (1946): 140-150. [There is a copy of this publication in the instrument's file.]
ProvenanceFrom Dr. Leo Beranek, 2005.