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Two Decades of Sound Diffusor Design and Development, Part 2: Prediction, Measurement, and Characterization

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The last 20 years have seen great developments in the prediction, measurement, and characterization of diffusing surfaces. Methods available for predicting and measuring the scattered polar distribution using boundary-element methods and maximum-length sequence stimuli are reviewed. The methods are used currently to characterize the quality and amount of diffusion produced by a surface are described, including diffusivity diffusion coefficients derived from predicted and measured polar distributions and scattering coefficients derived from direct measurements.

JAES Volume 46 Issue 12 pp. 1075-1091; December 1998
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