Search found 417 matches

by lbonnet
Tue Sep 23, 2014 1:06 pm
Forum: Designer
Topic: Doubt about 2D and 3D visualizations
Replies: 3
Views: 3345

Re: Doubt about 2D and 3D visualizations

Hi Silvia, If there is a problem related to the actichamp acquisition, I can help ! Do you manage to see the EEG signals in a simple signal display ? I mean, by using just 2 boxes: Acquisition Client + signal display. As for the 2D and 3D topographic display boxes, I won't be very useful as I do not...
by lbonnet
Mon Apr 14, 2014 10:01 am
Forum: Acquisition server and drivers
Topic: Problem getting Vamp auxiliary channels in .17
Replies: 6
Views: 6394

Re: Problem getting Vamp auxiliary channels in .17

Hello there, We have a VAmp here, and I confirm we have the same problem as Zeraphil with the Auxiliary channels. I found more or less the same fix as you Jussi, (from what I see in the files attached). No problem then, I get the aux channels. Here is my version of the files just in case, but I don'...
by lbonnet
Thu Mar 13, 2014 10:04 am
Forum: Discussion about OpenViBE
Topic: Connecting OpenVibe with BCILAB using labstreaminglayer
Replies: 9
Views: 15238

Re: Connecting OpenVibe with BCILAB using labstreaminglayer

Hi sumitsoman! I'm Laurent Bonnet, working at Mensia Technologies. Maybe I can help on that ;) Recent bug reports indicated that the actiCHamp driver was indeed not working properly with openvibe 0.17.0. We contributed a patch recently that corrects some bugs, included the error while configuring th...
by lbonnet
Tue Jun 11, 2013 9:05 am
Forum: Discussion about OpenViBE
Topic: Connecting Actichamp with OpenVibe for Motor imagery
Replies: 2
Views: 4283

Re: Connecting Actichamp with OpenVibe for Motor imagery

Hi everyone, I guess this topic is the same as the one you can find on the BrainProducts actichamp forum : http://www.actichamp.com/forum/viewtopic.php?f=4&t=94 For your interest, here is a duplicate of my answer there. Hello cdac_bci, I am Laurent Bonnet, engineer at Mensia Technologies. I have dev...
by lbonnet
Mon Feb 11, 2013 3:22 pm
Forum: Feature Requests
Topic: Saving files
Replies: 1
Views: 5742

Re: Saving files

Hi Lorena, Recovering the subject name and other experiment information from the corresponding input stream could be nice, however it may be a little bit too specific to be worth the work; I'm not sure... The experiment info stream is not used very often (at least in my case; but I don't really know...
by lbonnet
Mon Jan 28, 2013 10:45 am
Forum: Boxes
Topic: Error using matlab scripting box in p300 scenario
Replies: 7
Views: 7722

Re: Error using matlab scripting box in p300 scenario

Hi Jose, sorry for late reply, Unfortunately, as I don't work in the official support team anymore, I don't have Matlab to test this :( The support guys are very busy right now (as stated on front banner on the website). I will tell them directly about your problem, see if they have some spare time ...
by lbonnet
Mon Jan 28, 2013 10:39 am
Forum: Designer
Topic: How to trigger sound based on different EEG frequency band??
Replies: 6
Views: 5230

Re: How to trigger sound based on different EEG frequency ba

Hi and sorry for late reply, The official support team has a lot of work right now to train a whole new crew of engineers. To be honest, several solutions can be implemented for a threshold-based BCI. If you don't want to write C++ code (which I understand perfectly), you can use boxes. But it may s...
by lbonnet
Mon Jan 28, 2013 10:22 am
Forum: Designer
Topic: Send Keystroke to Stand-Alone Software
Replies: 1
Views: 2355

Re: Send Keystroke to Stand-Alone Software

Hello, You will find on the openvibe website interesting tutorials about VRPN: - VRPN communication from an external app to openvibe http://openvibe.inria.fr/vrpn-tutorial-sending-data-from-an-external-application-to-openvibe/ - from openvibe to the outside world: http://openvibe.inria.fr/vrpn-tutor...
by lbonnet
Mon Jan 28, 2013 10:16 am
Forum: Feature Requests
Topic: Mindwave
Replies: 23
Views: 39596

Re: Mindwave

Thanks for the feedback !
We currently have some issue with the website.
Some images are lost, these are not the first...

The official support team has been warned directly, investigations in progress :)

L
by lbonnet
Mon Jan 28, 2013 10:11 am
Forum: Discussion about OpenViBE
Topic: Tobi Signal server and g.usbamp and g.mobilab
Replies: 2
Views: 7097

Re: Tobi Signal server and g.usbamp and g.mobilab

Thanks Anton for this new contribution !
The outcomes of the Tobi project are quite impressive, such Tobi-OV interconnection could provide nice mutual benefits.

L-
by lbonnet
Mon Jan 28, 2013 10:06 am
Forum: Discussion about BCI and related topics
Topic: Where can I find hardwares to deal with Open-VIBE
Replies: 1
Views: 3891

Re: Where can I find hardwares to deal with Open-VIBE

Hi ! I suppose you will find many other topics on the forum and elsewhere with opinions and interesting information. Just few words about the image you posted. This shows a g.Tec g.USBAmp, medical grade device (price order : €20k), an Emotiv EPOC ($750 for research edition), a Neurosky headset ($100...
by lbonnet
Mon Jan 28, 2013 10:00 am
Forum: Discussion about BCI and related topics
Topic: neurosky mindwave mobile for neurofeedback
Replies: 5
Views: 6458

Re: neurosky mindwave mobile for neurofeedback

Thanks for the link,
My turkish is a bit rusty I'm afraid ;)
Do they have an english version of this ? I can't find any (didn't try much though...).

Laurent-
by lbonnet
Mon Jan 28, 2013 9:57 am
Forum: Discussion about BCI and related topics
Topic: Stimulations modification
Replies: 13
Views: 14087

Re: Stimulations modification

Hi Lorena, The motor-imagery stimulator displays pre-defined instruction cues: cross, right arrow, left arrow and such. If you just want to display other instruction, you may use the Display Cue Image box. (categorie : visualizatio/presentation) This box displays an image when receiving a defined st...
by lbonnet
Mon Jan 28, 2013 9:48 am
Forum: Discussion about BCI and related topics
Topic: visualizing average alpha frequency
Replies: 1
Views: 2799

Re: visualizing average alpha frequency

Hi valdesad1, You may use a signal dislay box to visualize such "level". - Filter your signal in the desired frequency range - use a time based epoching to slice your signal into large epochs (for example 1 sec epoch every 0.5 sec) - Average the epochs using Epoch Average - display the result in a s...
by lbonnet
Thu Sep 06, 2012 4:40 pm
Forum: Scenarios and BCI design
Topic: Motor Imagery : atmosphere and reference
Replies: 6
Views: 7101

Re: Motor Imagery : atmosphere and reference

Hi cagor, The Emotiv headset electrodes are not placed on the motor cortices of the hands or feet (roughly C3, C4, Cz) It would be hard to get a good feature, but you can try... I'm not convinced you could get very good results. Please also note that motor imagery is a paradigm that requires a lot o...