Microphone support device for sound source localization

The present invention comprises the following: a ring-shaped frame (2); a plurality of fixed arms (4) that project towards the inside of the frame (2); a plurality of movable arms (8) that are longer than the fixed arms (4) and that are removable; and a large number of microphones (14). By accommodating the plurality of movable arms (8) inside of the frame (2) in a radiating state, a small size microphone array is constructed, as shown in fig. 8(A). Meanwhile, by radially extending the plurality of movable arms (8) outside of the frame (2), a large size microphone array is constructed, as shown in fig. 8(B). When constructing a circular two-dimensional microphone array in this manner, by making the size thereof easy to change, the microphone array can handle wide-frequency sound localization.