| 摘要 |
<p>A sound capturing device that minimizes interference by ambient wind and water is provided. The device includes (a) a housing (10) having walls that have at least one aperture (52, 54) that is in acoustic communication with the environment external to the housing, and wherein each aperture has an exterior port, (b) a microphone (26) that is positioned in the housing; and a replaceable protective material (62, 64) that covers the exterior port of each aperture and that is exposed to the environment, wherein the protective material comprises (i) a porous, hydrophobic membrane having a sufficiently small pore size to prevent the accumulation of moisture in and the entrance of water through the hydrophobic membrane, and (ii) an air flow attenuating membrane having an effective thickness to reduce the turbulence of ambient wind impinging upon the exterior port. The sound capturing system can be a two way communications device, a hearing aid, a telephone headset, a multimedia headset, or other communication device.</p> |
