On 2015-08-28 16:20:33, Pierre-Andre Noel 
<noel.pierre.an...@gmail.com> wrote:
> If your sequence is not meant to be periodic (i.e., if after one 
> minute  there is no reason why the signal should start back at 
> the beginning  right away), then you should do zero-padding. And 
> while you zero-pad,  you can zero-pad to a sequence that is a 
> power of two, thus preventing  awkward factorizations.

Zero-padding won't help with the non-periodicity, will it?  For 
that you may want to window instead.

Stéfan
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