| 摘要 |
A microphone support device includes a ring-shaped flame (2), a plurality of fixed arms (4) which protrude toward an inner side of the flame (2), a plurality of movable arms (8) which are longer than the fixed arms (4) and are detachable, and multiple microphones (14). A small-size microphone array is constructed by accommodating the plurality of movable arms (8) inside of the flame (2) in a radiating state as shown in FIG. 8(A) . On the other hand, a large-size microphone array is constructed by radially developing the plurality of movable arms (8) outside of the flame (2) as shown in FIG. 8(B) . When constructing a circular two-dimensional microphone array, a size of the circular two-dimensional microphone array can be easily changed in this manner. Hence, the sound localization can be handled over a wide frequency range. |
