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Journal Forum
Recording Electric Guitar—The Science and the Myth - January 2010
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The Art and Business of Game Audio - April 2010
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Digital Audio Effects and Simulations - May 2010
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AES E-Library
Fast Rendering of Sound Occlusion and Diffraction Effects for Virtual Acoustic Environments
We present a new approach to efficiently compute effects of sound occlusion and diffraction to obstacles in general virtual acoustic environments. Based on the Fresnel-Kirchoff approximation to diffraction, our method uses a 3-D model of the environment and computer graphics hardware to evaluate diffraction effects between a sound source and a receiver position. No further hypothesis is needed on the diffracting domain. This method allows us to compute attenuation data and filters which can then be used for auralization. The method can also be extended to indirect sound propagation paths.
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