Method for processing individualized data representative of the directivity of an individualized audio system, said method comprising the following steps: - obtaining, for each individual of an initial set of individuals, at least one personalized set of binaural filters; - determining N independent components common to the sets of filters obtained; - decomposing each of the sets obtained into a first base formed from the N independent components with a view to obtaining, for each set of filters, a first set of weighting coefficients; - decomposing each first set of weighting coefficients into a second base of P independent components, in order to obtain a second set of weighting coefficients, the second base of P independent components being a base of spherical harmonics of order P-1 and the second set of weighting coefficients being a set of spherical coefficients; - storing each second set of weighting coefficients obtained in association with an individual identifier from among the initial set of individuals; wherein each individual of the initial set of individuals is further associated with a set of morphological data, said method further comprising the following steps: - obtaining current morphological data of a new individual; - selecting an individual from among the initial set by comparison between the current morphological data and the sets of morphological data of the individuals of the initial set; - applying a transformation to the second set of weighting coefficients that are associated with the individual selected with a view to obtaining a transformed second set of weighting coefficients, said transformed second set of weighting coefficients being a transformed set of spherical coefficients, the transformation being determined on the basis of the current morphological data with a view to obtaining a modified set of filters; - storing the transformed second set of weighting coefficients in association with an identifier of the new individual. - obtaining, for each individual of an initial set of individuals, at least one personalized set of binaural filters; - determining N independent components common to the sets of filters obtained; - decomposing each of the sets obtained into a first base formed from the N independent components with a view to obtaining, for each set of filters, a first set of weighting coefficients; - decomposing each first set of weighting coefficients into a second base of P independent components, in order to obtain a second set of weighting coefficients, the second base of P independent components being a base of spherical harmonics of order P-1 and the second set of weighting coefficients being a set of spherical coefficients; - storing each second set of weighting coefficients obtained in association with an individual identifier from among the initial set of individuals; - obtaining current morphological data of a new individual; - selecting an individual from among the initial set by comparison between the current morphological data and the sets of morphological data of the individuals of the initial set; - applying a transformation to the second set of weighting coefficients that are associated with the individual selected with a view to obtaining a transformed second set of weighting coefficients, said transformed second set of weighting coefficients being a transformed set of spherical coefficients, the transformation being determined on the basis of the current morphological data with a view to obtaining a modified set of filters; - storing the transformed second set of weighting coefficients in association with an identifier of the new individual.