A practical way to improve the low-frequency response in sound control rooms is presented. The problem addressed in this paper-cancellation around 100 Hz, which is caused by early refections-can be decreased by mounting the loudspeaker in a large (2 m x 2.5 m) baffle. The baffle increases the directivity of the loudspeaker and gives about 6 dB gain at low frequencies. This paper also presents some numerical methods for evaluating the diffraction.

Authors: Salmensaari, Olli; Borenius, Juhanai; Backman, Juha
Affiliations: Finnish Broadcasting Co. (YLE), Helsinki, Finland ; Helsinki University of Technology, Espoo, Finland(See document for exact affiliation information.)
AES Convention: 94 (March 1993) Paper Number: 3571
Publication Date: March 1, 1993
Subject: Architectural Acoustics

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