The present invention relates to improve sound quality. Multiple improved systems of microphone base sound quality of the sound spectrum of psychology are deducted in providing method and equipment. According to the present invention, this method can adaptively be reacted to provide constant tone, or even the signal-to-noise ratio (SNR) low almost without exception of the loss voice in noise circumstance when the type change of noise. Even if being changed suddenly with the noise for handling impulsive noise and real time type in real time in addition, this method can revolt. In addition, the present invention is to increase multi-functional and to have required tuning short-period used low in energy consumption according to calculation amount, and provide scheme as software type library. ;The 2014 of copyright KIPO submissions
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