exmp2_7.m

用dsp解压mp3程序的算法

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% exmp2_7.m - Magnitude & phase responses of an IIR filter
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b = [1/8 0 0 0 0 0 0 0 -1/8];   % numerator vector
a = [1 -1];                     % denominator vector
freqz(b, a)             % plot magnitude & phase responses