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Matlab:>>SPTOOL
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Design FIRResponse type: Bandpass
Astop means attenuation gain,
The coefficient of the filter can be seen from analysisfilter coefficient
Export the filter data
For convolution:If the coefficient of filter is a(1), a(2), a(2),and signal is bThen
%%convolutionfor i=3:length(b)+6newsignal(i)=a(1)*b(i)+a(2)*b(i-1)+a(3)*b(i-2);end
newsignal(1)=a(1)*b(1);newsignal(2)=a(1)*b(2)+a(2)*b(1);
%%so newsignal is the new signal
After the filter which we have designed
For the go
Left
Right
To get this, what I do isImport the signal from the workspace(import fuction under the file of the SPTOOL)Go1 left1 and right1 is the signal get from the wavread(‘***.wav’)
Select right filter and imput signal ,Click the apply, then u can name the output signal, then view it
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