An Effective Design Method of Inverse Filters for Multichannel 3D Sound Rendering

This paper provides an effective design method of inverse filters for use in multichannel 3D sound rendering. In order to obtain the optimal solution of the inverse filter, the conventional adaptive algorithm requires that the parameters are properly tuned through lots of time and effort while through the proposed method we can systematically obtain the inverse filter with the desired accuracy and very low computations. In z-domain, we approximately design the stable inverse filters of maximum phase system in order to solve the inverse problem of multiple-input-multipleoutput nonminimum phase system. We compare the proposed method with the conventional one based on the adaptive algorithm through the computer simulations.