Description: Implementation of variable sampling and polyphase filter. This procedure implements a variable sampling procedures, intermediate design and interpolation and decimation filter design. The filter design is using the window function method, according to the requirements of the design of window function, get the length of the window function. Then the interpolation, filtering, extraction, and finally obtain the variable wave file, sampling after the addition of contrast and polyphase decomposition results of two methods for convolution last direct convolution.
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FilterDesign01\FilterDesign.m
..............\Email.txt
..............\InputData.mat
..............\input.wav
..............\FilterDesign.asv
..............\六种窗函数特性表.jpg
..............\参考链接.txt
..............\block diagram for a polyphase decomposition.bmp
..............\output1.wav
..............\output2.wav
..............\Design.JPG
FilterDesign01
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