With the 3.0.0, in P300 Online or Replay, the selected characters are not showed

About BCI and box tutorial/demo scenarios bundled with OpenViBE.
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etc
Posts: 23
Joined: Sat Mar 07, 2020 4:33 pm

With the 3.0.0, in P300 Online or Replay, the selected characters are not showed

Post by etc »

Sorry for the inconvenience! I know I asked many questions in the past, but now I have a very bad problem with the new version 3.0.0 (December 2020) ! I would work with the new version also because I would use the Artefact detection.
The problem: the problem is the same working with P300 Speller or working with P300 Speller XDAWN.
PC, Win 7. In the “ONLINE” the selected characters are not showed. To get a good documentation for you, I run a test with your 2 test-datasets (date 2016-04-20). I used the first one for the training Xdawn and for the training classifier. I used the second one in the Replay. Also with your datasets I don’t see any result, I don’t’see any character selected!!!
I attach the print screen where it is possible to see what I am saying. And I attach also the print-screen with 4 Warning message.
With version 2.2.0, it is OK! The scenario works well and I see the selected characters!
Thank you!
Attachments
2020-12-20-errore-3.0.0-con-dataset-xforum-2.jpg
2020-12-20-errore-3.0.0-con-dataset-xforum-2.jpg (205.98 KiB) Viewed 1006 times
2020-12-20-errore-3.0.0-con-dataset-xforum-rid.jpg
2020-12-20-errore-3.0.0-con-dataset-xforum-rid.jpg (129.38 KiB) Viewed 1006 times

Thibaut
Posts: 227
Joined: Wed Oct 31, 2018 9:14 am

Re: With the 3.0.0, in P300 Online or Replay, the selected characters are not showed

Post by Thibaut »

Hi,
It's exactly the same scenario and dataset in input ? If yes, it's certainly a bug in new version. A lot of improvment were done and can break some stuff.
Thibaut

etc
Posts: 23
Joined: Sat Mar 07, 2020 4:33 pm

Re: With the 3.0.0, in P300 Online or Replay, the selected characters are not showed

Post by etc »

Thank you!
They are the same scenarios (P300 speller and P300 speller Xdawn) with the same your datasets in input (training and online dataset, both with date 2016-04-20).
When you'll give a look, if I can help you, I can give to you other infomations about my tests to understand the problem.
Ettore

Thibaut
Posts: 227
Joined: Wed Oct 31, 2018 9:14 am

Re: With the 3.0.0, in P300 Online or Replay, the selected characters are not showed

Post by Thibaut »

Thanks Ettore, I think some change have break this box. I create an issue to notify all the new team.
Thibaut

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