Combine recordings

[Edouard2laire]

Hello,

This is the continuation of #660 in the attempt to enhance multimodal data analysis in Brainstorn.

Since, having multiple raw viewer recording with multiple sampling rate is not accessible (#656), i made this process to combine recording and resampling them to the highest frequency.

This allows to make such visualization directly from Brainstorm:

This assume that the signals were synchronized

Todo:

• User-specified folder name
• Copy channel flag
• Copy video if present (not necessary actually. can be loaded from the other folder)

Question:

• Better way to merge channels?
  I am not sure if the way I am doing is ok; especially if I need to merge headpoints / fiducials ...

• How to deal with events ?
  Same thing, I am only copying events from the first file ? Should we merge them adding a sufixe to the name to identify the file ?

[Edouard2laire]

hello @rcassani

This PR is ready for review.

The only things I am not sure are: the events ( how to merge event from multiple file - esp after synchronization there will be a lot of duplicate if we just concatenate the events), and the channel flag.

Let me know if you have any questions.

I'll try to complete all the PR I have as draft soon :)

[Edouard2laire]

ok i completed my todo list.

@rcassani, let me know when you would have time to review this. Let me know if you need an example dataset