Principles and implementation of efficient auralization of edge diffraction is presented. A calculation principle for the impulse response from an edge is reviewed. This technique is integrated into an acoustic modeling system which is based on the image source method. For auralization purposes a low-order digital filter for each diffracting edge is designed which implements the diffraction phenomenon efficiently and is suitable for parametric auralization. Finally, examples of filter designs are presented.

Authors: Lokki, Tapio; Svensson, Peter; Savioja, Lauri
Affiliations: Helsinki University of Technology, Telecommunications Software and Multimedia Laboratory, HUT, Finland ; 2Norwegian University of Science and Technology, Department of telecommunications, Acoustics group, Trondheim, Norway(See document for exact affiliation information.)
AES Conference: 21st International Conference: Architectural Acoustics and Sound Reinforcement (June 2002)
Paper Number: 000084
Publication Date: June 1, 2002
Subject: Architectural Acoustics & Sound Reinforcement

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