A new method of generating diffusers is presented based on a combination of orthogonal modulated and fractal gratings. The diffusing structures not only have improved diffusion characteristics but also extend the frequency range for a given diffuser size. The theory, design, advantages, and limitations of these structures will be discussed and simulation results of their performance will be presented.

Authors: Entwistle, Colin D.; Sargeant, Timothy J.; Angus, James A. S.
Affiliation: University of York, York, UK
AES Convention: 105 (September 1998) Paper Number: 4833
Publication Date: September 1, 1998
Session Subject: Sound Reinforcement; Room Acoustics

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