Microphone system for vehicle

摘要

A vehicle interior rearview mirror assembly ( 10 ) comprises an accessory ( 24 ), a reflective element ( 18 ) and a bezel ( 20 ). The mirror assembly may define portions of a pocket ( 23 ) that at least partially receives and secures the accessory therebetween when the reflective element is at least partially received in the bezel. The mirror assembly ( 110 ) may include a microphone ( 124 ) and an acoustic cover ( 126 ) positioned at least partially over one or more inlet ports ( 124 j, 124 k) of the microphone. The acoustic cover may include an outer air flow limiting layer ( 130 b) that substantially limits air flow therethrough and a diffusing material ( 130 a) that may space and support the outer layer from the inlet ports to substantially diffuse air flow that penetrates the outer layer. An acoustic barrier ( 132 ) may be positioned between a pair of inlet ports of the microphone to enhance the directivity of the microphone.