| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a zoom microphone device realizing a narrow directivity voice emphasis technique having sharper directivity compared to a conventional case. <P>SOLUTION: The zoom microphone device includes: one support structure; 2N (N is integer of 1 or more) fixed reflection boards; and 2N microphone arrays in which a plurality of microphones are linearly arranged. Sets (N sets) of the fixed reflection boards where the two fixed reflection boards are made to confront each other in such a way that the microphone array is attached to a face of the fixed reflection board one by one so that the face of the fixed reflection board and a microphone array direction of the microphone array become parallel, faces to which the microphone arrays of the two fixed reflection boards are attached make 90 degreed, and the microphone array direction of the microphone array attached to one fixed reflection board and the microphone array direction of the microphone array attached to the other fixed reflection board make 90 degrees are attached to the support structure. <P>COPYRIGHT: (C)2012,JPO&INPIT |
