| 摘要 |
PURPOSE:To prevent wind noise without deteriorating directivity characteristic and frequency characteristic or the like by providing the 1st and 2nd double foamed resin wind screen having a prescribed distance from a diaphragm face of a microphone unit respectively. CONSTITUTION:The first foamed resin wind screen (Bridge Stone Ever Light Scott 50mesh) 18 is provided by spacing with a distance l1 a diaphragm face 12a of the microphone unit 12 and the 2nd foamed resin wind screen 19 is provided by spacing with a distance l2 the 1st screen 18 so as to constitute a double wind screen. Then, the 1st and the 2nd screens 18, 19 are constituted in parallel to the diaphragm face 12a. In constituting the screens 18, 19 with the distance l1 for >15mm. and with the distance l2 for 15mm.<l2<30mm., the wind screens having very less wind noise and not injuring the acoustic characteristic of the microphone are obtained. |
