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anechoic chamber


anechoic chamber
A large enchoic chamber used by NASA scientists and engineers
Also known as a dead room, a room designed to be echo-free so that it can be used in acoustic laboratories to measure sound reflection and transmission, and to test audio equipment. The walls, floors, and ceiling must be insulated and all surfaces covered with an absorbent material such rubber, often over inward-pointing pyramid shapes to reduce reflection. An anechoic chamber is usually asymmetrical to reduce standing waves.


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