I would like to filter using a periodogram produced by spec.pgram()  then
pick the frequencies that I would like to filter out and then get the
inverse back into the time domain.  Any thoughts.

Stephen

-- 
Let's not spend our time and resources thinking about things that are so
little or so large that all they really do for us is puff us up and make us
feel like gods. We are mammals, and have not exhausted the annoying little
problems of being mammals.

-K. Mullis

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