CODEWITHSUNDEEP
matlabfilteringconvolution
Luke SpringWalker
Luke SpringWalker

Reputation: 1592

Matlab - Using conv instead of filter to process a signal

I'm have the following code to process a signal from an audio

[wave,fs]=wavread('my-audio.wav');
t=0:1/fs:(length(wave)-1)/fs;
figure(1);plot(t,wave);
b = [0  1  1.1];
a = [1  0 -0.1];
FIR = filter(b,a,wave);
figure(2);plot(t,FIR);

And I'm wondering how, if it's possible, can I do exactly the same with the conv function and what would be the difference.

So far, I guessed that I have to turn the audio from stereo to mono. Am I right?

Thanks!

Upvotes: 0

Views: 565

Answers (1)

CKT
CKT

Reputation: 781

You can use conv to perform FIR filtering, but not IIR filtering. In this case, you have non-trivial denominator coefficients, the filter is IIR and so filter is the way to go.

Upvotes: 3

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