Patent ID: 8489371

Claim:
A computer-implemented method for determining head related transfer functions (HRTFs) for an individual comprising: measuring, for a first number of directions, HRTFs specific to said individual; extracting measured directivity functions from said measured HRTFs for said individual; evaluating, using a computer, spatial similarities between the measured directivity functions and representative directivity functions of groups of reference directivity functions; associating a measured directivity function with a group of reference directivity functions, wherein the measured directivity function is associated with the group from which originates the representative function with which the evaluation of the spatial similarity is maximal; determining, for the measured directivity function, a reconstruction directivity function by interpolating from a reference directivity function of the associated group; determining reconstruction directivity functions for additional directions by interpolating from reference directivity functions of the associated group; and obtaining HRTFs for said individual for a second number of directions greater than the first number of directions from the reconstructed directivity functions.