Design and Performance of a New Reverberation Room at Armour Research Foundation, Chicago, Illinois

During the last six months the ART Acoustics Section has been moved to new quarters. In these new facilities a reverberation room has been built for use in the acoustic research of that group. The room has a volume of approximately 3000 cu ft and a reverberation time of about 5 seconds. The four walls and ceiling of the room have been splayed. Measurements indicate that the room has a relatively uniform reverberation with respect to frequency. Data will be presented to show the ambient noise level in the room, the steady-state sound energy distribution within the room, and the reverberation time as a function of frequency and location within the room.