| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stereo microphone with narrow directionality using a microphone for the mid-range and microphone units for sides, requiring neither bidirectional microphone unit nor matrix circuit. <P>SOLUTION: A stereo microphone comprises a mid-range unit 1 with narrow directionality arranged with its directional axis coinciding with the main axis of the microphone body, a right unit 2 and a left unit 3, both unidirectional, the two being symmetrically arranged with the main axis in-between with the directional axis of each oriented orthogonal to the main axis, and the three units being so connected that the output of the mid-range unit 1 is inputted to one each of diaphragms 21 and 31 and of fixed poles 22 and 32 and the right and left channel signals are respectively outputted from the other each of the diaphragms 21 and 31 and of the fixed poles 22 and 32. <P>COPYRIGHT: (C)2012,JPO&INPIT |
