[Eeglablist] Basic FIR filter and SIFT
davida_s2000 at yahoo.com
Fri Jun 23 15:42:45 PDT 2017
No I didn't select the minimum phase checkbox. This is great news and you saved me a lot of reprocessing...thanks, Andreas!
From: Andreas Widmann <widmann at uni-leipzig.de>
To: Davida Streett <davida_s2000 at yahoo.com>
Cc: Eeglablist <eeglablist at sccn.ucsd.edu>
Sent: Friday, June 23, 2017 11:45 AM
Subject: Re: [Eeglablist] Basic FIR filter and SIFT
> I have processed several datasets with EEGLAB tools' "Basic FIR filter (new, default)". I used 0.5Hz lower edge and 50Hz upper edge followed by additional processing such as ICA. I am now preparing to use this data with the SIFT toolbox for the first time. I expect to look at Direct DTF, Partial Coherence, Complex Spectral Density, and probably other things too. Is there an issue with the filtering method not being zero-phase (acausal)?
If you used default settings (i.e. NOT manually selected the "Use minimum phase..." checkbox) the "Basic FIR filter (new, default)" actually implements a zero-phase filter. Did you manually select the "minimum phase" checkbox and why?
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