SOUND COLLECTING DEVICE

摘要

A sound collecting device includes: at least one target sound collecting means for collecting a sound including a target sound generated by a target sound source and outputting a sound collection signal; a plurality of non-target sound collecting means arranged at different positions from one another and each having a blind spot of sensitivity formed in the direction toward the target sound source so as to collect a sound out of the blind spot and outputting a sound collection signal; sensitivity suppressing means for subjecting the sound collection signal outputted from each of the non-target sound collecting means to a predetermined signal process so that the sound collection sensitivity in an overlapped region where the blind spots are overlapped is suppressed as compared to the region around the overlapped region; and extraction means for removing a sensitivity suppressing signal generated by the sensitivity suppressing means from the sound collection signal outputted from the target sound collecting means so as to extract a signal of the sound generated in the overlapped region of the blind spots.