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BouchardLab / nsds_lab_to_nwb

Python package to convert NSDS Lab data to NWB files.
https://nsds-lab-to-nwb.readthedocs.io/en/latest/
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confirm filtering details for the electrodes table #49

Closed jihyunbak closed 3 years ago

jihyunbak commented 3 years ago

From Ryan's review on R56_B13 test output:

The “filtering” column in the electrodes table contains the text “Low-Pass Filtered to Nyquist frequency”. To be clear, is this based on the sampling rate of 6103.515625 or a different sampling rate?

jihyunbak commented 3 years ago

@VBaratham @JesseLivezey Could you please comment on this?

VBaratham commented 3 years ago

I don't know what that text meant - could just be junk we put in because NWB needed something there

jthermiz commented 3 years ago

I doubt that the signal was low pass filtered at precisely half of the sample rate. Filters are not ideal so there would be some aliasing error due if the cutoff was Fs/2. I asked Vanessa for this cutoff in another issue.

jthermiz commented 3 years ago

Vanessa said in another issue that the signal is low pass filtered at 45% of the sample rate.

The data is also high pass filtered at 2 Hz.