An Efficient Auralization of Edge Diffraction

INTRODUCTION This paper contributes to the modeling and auralization of diffraction which is one of the most important acoustic phenomenon caused by the wave nature of sound. However, most room acoustic modeling algorithms rely on geometrical acoustic techniques which completely neglect the diffraction. The reason for this is that such methods as ray-tracing [1], beam-tracing [2] and image-source method [3, 4] assume that sound propagates as light, i.e., the wavelength of the sound is much shorter than the dimensions of the reflecting objects. In this paper we show how diffracted sound components can be added to the image-source method and how an efficient auralization of diffracted components can be realized.