Patent ID: 8116478
Filing Date: 2012-02-14
Classification: G10L,H04R

Abstract:
1. An apparatus for beamforming in consideration of characteristics of an actual noise environment, the apparatus comprising: a microphone array having at least one microphone, the microphone array outputting a signal input through each microphone; a coherence function generation unit for calculating coherences for input signals according to distances between the microphones, calculating averages of the coherences for the microphones having the same distance between each other, and filtering the calculated averages of the coherences and outputting the resultant values, when an input signal is input; a spatial filter factor calculation unit for calculating and outputting a spatial filter factor by using the filtered average coherences; and a beamforming execution unit for performing beamforming for the input signals by using the spatial filter factor, thereby outputting a noise-processed signal.