说明：  说明：Kamath于2002年提出的多频带谱减法,用于调节频率减法系数以及信噪比。注意：信号的第一个0.25sec用于噪声建模。
(Multiband_Kamath.m Description: Multiband spectral subtraction as proposed by Kamath 2002. Uses adjusts the subtraction coefficient with the frequency as well as the SNR. note that the first 0.25sec of your signal is used to model the noise. License: Shareware Related: sec, Signal, Model, Noise, Frequency, coefficient, subtraction, Spectral, proposed O/S: BSD, Linux, Solaris, Mac OS X)