OpenViBE forum

If you connect a keyboard stimulator to CSV file writer (after changing its input to 'stimulations'), you should see that the keys you press get tagged in the CSV file with the corresponding, different identifiers. You should be able to get the same result by directing the stimulation output from th...

Hi Peterold, I'm sure there are many ways to achieve this. One of the simplest ones would be to write the classifier outputs to a disk (there are boxes that should be able to do this) and then launch your own application/script to compare the results against a stored pattern (there's a box for launc...

Hi Daka, NeuroMarketing might have its special needs depending on the localization of cravings inside the cranium. Perhaps some other people have some specific thoughts on this -- as an engineer, I can just point you to the OpenViBE office's reply to the general question, http://openvibe.inria.fr/fa...

Hello everyone,

I'm pleased to announce that since SVN r3590, MindWave Mobile should now finally work.


Happy hacking,
Jussi

Hello everyone,

I'm pleased to announce that since SVN r3590, MindWave Mobile should now finally work. Note that this is NOT released yet. It will be in 0.16.0.


Happy hacking,
Jussi

Hi, I tried the gdf-reader.xml scenario included with OpenViBE on the O3VR.gdf file (the first test subject of IIIb) I downloaded from the site you mentioned. The default samples per buffer (32) in the GDF reader box causes a warning, but you can change this to 25 and the warning disappears. I could...

Hello nsprt, some more details would be useful, such as, 1) which files exactly? from where? if its not part of OpenViBE, whats the download link? 2) why doesn't it work? If you think its a bug, please follow the general bug reporting guidelines, http://openvibe.inria.fr/faq/#I+think+I+found+a+bug,+...

Please see here for devices,

http://openvibe.inria.fr/faq/#Devices+and+drivers

Cheers,
Jussi

ps. Moderated the thread a little. Lets keep it civil.

Hi Melchoir,

most of the OpenViBE development is related to software, using existing devices. There is a BCI hardware community that might be able to provide some further information on EEG devices:

http://openeeg.sourceforge.net/doc/

Cheers,
Jussi

(edit: cleaned up)

Hello all, the issue with Matlab box not outputting anything in this case seemed to be that the voting classifier outputs stimulations with timestamps in the past. This has an effect that the stimulations are not processed by the Matlab scripting box. There's now a new "Stimulus Voter" box in SVN r3...

Ok, got the files, thank you. There definitely is a crash. But while I can fix the crash rather easily, the real problem seems to be that the Signal Display does not seem to work with the kind of data that the Classifier Processor outputs, so the crash fix still wouldn't give you a nice display that...

There seems to be a problem with the file, unfortunately I get

"Download not available
Download permission denied by uploader. (0b67c2f5)"


Best,
Jussi

Hi Lorena,

we could debug the crash, but it'd be helpful to have all the files to reproduce it - whats missing is the CSP config, the classifier and the data set. Could you put them up somewhere?


Cheers,
Jussi

It seems that the sampling rate was not parsed properly if it was set inside Matlab. This has been fixed in r3522.


Happy hacking,
Jussi

Hello all,

there's definitely something fishy in all this. We're looking into it.


Cheers,
Jussi