| 摘要 |
PROBLEM TO BE SOLVED: To provide a narrow-angle directional array microphone apparatus, in which the directional beam width is narrowed, and the directivity of which can be controlled inside a three-dimensional space. SOLUTION: In the array microphone apparatus and a method for changing its main shaft, array microphones, whose directional main shaft can be changed in a planar space, consist of an array microphone unit (AMU), and the array microphones are arranged on the same plane or three-dimensional plane so that the AMU directional main shaft variable planes are parallel. COPYRIGHT: (C)2007,JPO&INPIT
|
