[Mne_analysis] notch filter for removing power chord signal

[Denis-Alexander Engemann]

2012/9/12 Alexandre Gramfort <gramfort at nmr.mgh.harvard.edu>:
> 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?

yes.

>
>> 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.
>

ok, thanks though

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