| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microphone unit for stereophonic recording capable of adjusting an intersecting angle of sound collecting axes in accordance with conditions without impairing directivity and sound quality of the microphone. Ž<P>SOLUTION: Respective rotation bases 408, 508 are rotatable around a center axis with respect to mounting bases 404, 504, respectively, which are mounted to a body 20 of a portable sound recorder 10 through respective brackets 402, 502. Respective top ends of respective knurls 414, 514 of leading ends of the respective rotation bases 408, 508 have a shape being cut to form an inclined surface from a radial direction, and respective microphones 418, 518 are retained so that diaphragms 420, 520 are in consonance with the cut surface. Accordingly, by rotation of the respective rotation bases 408, 508, the sound collecting axes 426, 526 vertically extending from the diaphragms 420, 520 are changed in their axes like a precession, thereby being capable of adjusting an intersecting angle of the sound collecting axes 426, 526 of the right and left microphones 418, 518. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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