| 摘要 |
This invention relates to a system ( 10 ) and method for matching one or more microphones. A first and second microphone ( 110, 210 ) communicates, respectively, a first and second microphone signal to an amplitude compensating means ( 16 ) adjusting amplitude of the first microphone signal in accordance with amplitude of the second microphone signal. The amplitude compensating means ( 16 ) communicates an adjusted first microphone signal ( 100 ) and the second microphone signal ( 200 ) to a phase matching means ( 18 ) comprising a correction filter means ( 113 ) receiving the adjusted first microphone signal ( 100 ). The correction filter means ( 113 ) comprises a low-pass filter means ( 111 ), which is controlled in accordance with a subtraction between the first microphone signal output ( 102 ) and the second microphone signal ( 200 ), and a high-pass filter means ( 112 ), which is controlled in accordance with a comparison between the first microphone signal output ( 102 ) and the second microphone signal ( 200 ).
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