| 摘要 |
An improved microphone assembly ( 128 ) is provided for porting two microphones ( 240, 242 ) of an opposing pair used for beam forming through a single symmetric porting structure ( 244 ). The microphone assembly ( 128 ) includes a first microphone capsule ( 240 ), a second microphone capsule ( 242 ) and a porting structure ( 244 ). The porting structure ( 244 ) encloses the first and second microphone capsules ( 240, 242 ) therein and has a first port ( 251 ) formed in a first wall ( 246 ) thereof and a second port ( 252 ) formed in a second wall ( 248 ) thereof opposite to the first wall ( 246 ), where the first and second microphone capsules ( 240, 242 ) share the first port ( 251 ).
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