FILTER AND METHOD FOR INFORMED SPATIAL FILTRATION USING MULTIPLE NUMERICAL EVALUATIONS OF ARRIVAL DIRECTION Russian patent published in 2018 - IPC H04R3/00 

FIELD: physics.

SUBSTANCE: filter contains a weight generator adapted to receive information about the arrival direction of the sound components from the sound emitters, information on the location of the sound emitters, and adapted to generate weight coefficients for each of the plurality of time-frequency elements, depending on the information of the arrival direction of the sound and depending on the location information of one or more sound emitters of the said time-frequency element. Moreover, the generator generates weight coefficients depending on the first noise information described by the first noise component coherence matrix, and depending on the second noise information described by the second coherence matrix. The generator provides generation for each of the plurality of time-frequency elements of one of a plurality of samples of an output audio signal that is assigned to the said time-frequency element depending on the weighing information of the said time-frequency element and depending on the sample of the input audio signal assigned to the said time-frequency element of each of two or more microphone inputs.

EFFECT: improving the algorithms of sound processing.

15 cl, 14 dwg, 1 tbl