How to save waveforms from spikeinterface to NWB?

[khl02007]

Is there a function to save waveforms in spikeinterface (SortingAnalyzer extension or older WaveformExtractor) to NWB format?

[alejoe91]

Hi @khl02007!

You can use the write_sorting_analyzer from the neuroconv package!

from neuroconv.tools.spikeinterface.spikeinterface import write_sorting_analyzer

write_sorting_analyzer(sorting_analyzer, nwbfile_path="path-to-nwb-file")

You can also write to an open nwbfile using the nwbfile argument or simply add the sorting analyzer info (units table + waveform means/stds + quality/template metrics column) to an open nwbfile without writing it with the add_sorting_analyzer_to_nwbfile function.

[h-mayorquin]

Clarification for people that were confused like me: Note that this adds the means and the stds of the waveforms for each units as @alejoe91 mentions above. It does not add all the waveforms which is probably a good idea since that will make the NWB explode in size and anyway you can quickly extract each of the individual waveforms on the fly as you have the timings on the units table.