Patent ID: 7831053

Claim:
A system for matching one or more microphones and comprising a first and second microphone adapted to communicate, respectively, a first and second microphone signal to an amplitude compensating means adapted to adjust amplitude of said first microphone signal in accordance with amplitude of said second microphone signal and said amplitude compensating means adapted to communicated an adjusted first microphone signal and said second microphone signal to a phase matching means, wherein said phase matching means comprising a correction filter means adapted to receive said adjusted first microphone signal and having a controllable low-pass filter means and a controllable high-pass filter means and said correction filter means adapted to generate a first microphone signal output, wherein said phase matching means further comprising a comparator means adapted to compare said first microphone signal output with said second microphone signal and adapted to generate a first control signal to said high-pass filter means thereby controlling cut frequency of said high-pass filter means, and wherein said phase matching means further comprising a subtracting means adapted to subtract said second microphone signal from said first microphone signal output and adapted to generate a second control signal to said low-pass filter means thereby controlling cut frequency of said low-pass filter means.