An alternative form of two dimensional diffusion structure based on absorption reflection gratings is presented. The theory, design, advantages, and limitations of these structures are discussed, and simulation and measurements of their performance are presented. Methods of extending and improving performance are suggested. The paper shows that diffusing structures which take up less space than phase reflecting ones are possible.

Authors: Angus, James A. S.; D'Antonio, Peter
Affiliations: University of York, York, UK ; RPG Diffusor Systems, Inc., Upper Marlboro, MD(See document for exact affiliation information.)
AES Convention: 107 (September 1999) Paper Number: 5061
Publication Date: September 1, 1999
Subject: Room Acoustics

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