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| The Anechoic Chamber in the Wendell Johnson Speech and Hearing Center is housed in a 27,000 cubic foot space (30' x 30' x 30') that is isolated from the rest of the building. The chamber is further isolated within the "vault" in that its contact with the floor, walls, and ceiling is through a series of springs. The 36" baffles which fill the floor, walls, and ceiling contribute to sound absorption properties that extend down to 60 Hz. |