[Mne_analysis] notch filter for removing power chord signal

Alexandre Gramfort gramfort at nmr.mgh.harvard.edu
Wed Sep 12 11:14:55 EDT 2012
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hi Denis,

> I wonder whether there is a MNE-way of removing power-chor artifacts
> from wide-band MEG data (1-200 Hz).

you mean the AC current and the harmonics of 50 or 60Hz?

> As there does not seem to be a notch filter available, empty room SSPs
> might be the way to do it.

yes don't use SSP for this.

You need a notch like filter but I am not aware of any with mne or mne-python.

Alex



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