Hello,
I am a new brainstorm user. I would like to resample an EDF signal of an electrocardiogram. As for now, I use the pre-process > resample, but it seems to take too much time. Is there another - quicker - way to do it please?
Thank you,
Link the EDF files to your brainstorm database (using "Review raw file", not "Import MEG/EEG") and run the process "Preprocess > Resample".
No other solutions available from Brainstorm.
Note that exporting the resampled signal back to EDF is not a good solution. The original EDF file is saved in integers (int16), the resampled file in your Brainstorm database is in floating point double precision. If you export it back to EDF, it will be converted again to int16, which may cause some loss of information and unwanted artifacts in the data.
If you are intending to use Brainstorm, start by following the introduction tutorials and the EEG/Epilepsy tutorial before trying to process your own data.
Thank you very much!
Is it better to export the resampled signal in another form like ASCII for example?
like ASCII for example?
No, this is much worse.
A better option could be the BrainVision format, adopted as a recommended choice in the BIDS specification.
https://bids-specification.readthedocs.io/en/stable/04-modality-specific-files/03-electroencephalography.html#eeg-recording-data