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A Model of Diffraction from Convex Loudspeaker Enclosure Edges

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A model based on the time domain description of diffraction is presented. An edge of arbitrary shape is divided into multiple sharp edges and is computed using a fractional delay model. The successive diffractions are combined using a modified Kelly-Lochbaum model, yielding an IIR filtered description of the diffraction, from which frequency response and other characteristics can be computed.

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