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sccn / clean_rawdata

Cleaning Raw EEG data
GNU General Public License v3.0
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is continuity of calibration data important? #48

Closed rsomervail closed 1 year ago

rsomervail commented 1 year ago

The clean_windows function seems to introduce discontinuities in the data to be used for calibration - can this affect the quality of the ASR calibration & cleaning?

I ask because I'm working with very long EEG recordings and the calibration stage is extremely long given the amount of reference data used. So I'm considering randomly dropping a fraction of the samples in the reference data to speed things up, this would introduce many discontinuities - is it a reasonable approach?

Alternatively I could just take the first N samples of relatively clean data for calibration, but this is less preferable due to possible differences across the recording.

arnodelorme commented 1 year ago

Yes, this is a good strategy. asr_calibrate just needs a couple of minutes of good data.

rsomervail commented 1 year ago

Great thanks, I'll give it a try.