BEAMFORMING METHOD BASED ON ARRAYS OF MICROPHONES AND CORRESPONDING APPARATUS

Beamforming method employing a microphones array to obtain Virtual Microphones having respective signals determining respective patterns of radiation, rotated at different pattern direction angles and with a separation angle, so that at least a circular sector is defined between said different pattern direction angles said separation angle between the at least a pair of Virtual Microphones being lower than n/2, obtaining a sum radiation signal with a sum radiation pattern associating a respective weight to the signals of said pair of directional Virtual Microphones, obtaining weighted signals of radiation and summing said weighted signals computing said respective weights as a function of a determined pattern direction angle of the pattern of radiation of said pair of directional Virtual Microphones and of the separation angle so that a main-lobe of said sum radiation pattern is steered within said circular sector to point in the direction of said determined pattern direction angle.