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Moving average.

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Sonia Wiemann
Sonia Wiemann 2012-4-17
I have a sound signal that I nee to create smoothening with a 3 ms window this is like a moving average. the sampling rate is 44.1/msec. How can I do this?

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Wayne King
Wayne King 2012-4-17
That would be a 132 point moving average filter, which you can do with
b = 1/132*ones(132,1);
output = filter(b,1,input);
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Sonia Wiemann
Sonia Wiemann 2012-4-17
Thanks!
Image Analyst
Image Analyst 2012-4-17
I agree, in fact that's why I suggested it in your earlier, duplicate posting (that I guess you forgot to check). http://www.mathworks.com/matlabcentral/answers/35683-smoothen-sound-signal

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