Patent ID: 8768496

Claim:
A method for selecting a perceptually optimal head-related transfer function (HRTF) in a database according to morphological parameters, comprising the steps of: sorting, among all of the morphological parameters from a second database, the N most relevant morphological parameters by correlating the second database and a third database, wherein a first database comprises the HRTFs of a plurality of subjects, a second database comprises the morphological parameters of the subjects from the first database, and a third database corresponds to a perceptual classification of the HRTFs from the first database with respect to a judgment by the subjects performed using a listening test corresponding to the different HRTFs from the first database; generating a multidimensional space whose dimensions result from a combination of HRTF components; modifying rules for combining components to maximize a correlation between a spatial separation between the HRTFs and the classification of the HRTFs in the third database to obtain an optimized multidimensional space; calculating an optimized projection model for correlating K sorted morphological parameters extracted from the second database with a corresponding position of the HRTFs in the optimized multidimensional space, the K extracted parameters maximizing the correlation between the optimized multidimensional space and a space produced by the optimized projection model; measuring the K morphological parameters for a user not having an HRTF in the first database; applying the previously calculated optimized projection model to extracted morphological parameters to obtain the user's projected position in the optimized multidimensional space; and selecting at least one HRTF in a vicinity of the user's projection position in the optimized multidimensional space.