Search found 147 matches

by Thibaut
Tue Jun 30, 2020 12:00 pm
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 4
Views: 84

Re: jaw clenching, artifact removal in P300 scenario.

Hi, Ask all question you want.^^ But I remember Fabien have give you some details on a previous post. It's maybe better to continue on this. For the first, yes you can keep the stable version in parallel with build version. But without knowledge about compiling and code, it maybe a little hard to un...
by Thibaut
Fri Jun 26, 2020 1:23 pm
Forum: Boxes
Topic: Problem Saving CSP Spatial Filter Trainer file
Replies: 1
Views: 40

Re: Problem Saving CSP Spatial Filter Trainer file

HI,
Have you an error written in log console ?
Thibaut
by Thibaut
Fri Jun 26, 2020 1:22 pm
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 4
Views: 84

Re: jaw clenching, artifact removal in P300 scenario.

Hi,
For Jaw artefact, if you build OpenViBE from source, you can use the box artefact detection with 70 to 100 as parameter, he suppress all signal with an amplitude higher than 70 (o lower than -70. It corresponding to muscular artefact.
Thibaut
by Thibaut
Tue May 19, 2020 12:05 pm
Forum: Tutorial scenarios
Topic: Not able to complete p300-xdawn-2-train-xDAWN.xml
Replies: 1
Views: 477

Re: Not able to complete p300-xdawn-2-train-xDAWN.xml

Hi,
Be more precise. OV Version, OS, and log.
Thibaut
by Thibaut
Tue May 19, 2020 12:04 pm
Forum: Designer
Topic: Classifier Trainer - Linear Discriminant Analysis (LDA) - ERROR: Plugin code causing crash
Replies: 4
Views: 379

Re: Classifier Trainer - Linear Discriminant Analysis (LDA) - ERROR: Plugin code causing crash

HI, For the trace button see image
Capture d’écran (132).png
Capture d’écran (132).png (80.23 KiB) Viewed 344 times
.
For the GDF maybe with an other site to temporaly share and suppress after
Thibaut
by Thibaut
Fri May 15, 2020 11:39 am
Forum: Designer
Topic: Classifier Trainer - Linear Discriminant Analysis (LDA) - ERROR: Plugin code causing crash
Replies: 4
Views: 379

Re: Classifier Trainer - Linear Discriminant Analysis (LDA) - ERROR: Plugin code causing crash

Hi, I have never seen this error. In case of, you use wich version of openvibe ? And a release or a personnal build Version. Can you attach a folder with your scenario, scripts and data used. All I can say is during the train, he test the classifier. I think, each time he try to train he cause crash...
by Thibaut
Fri Apr 24, 2020 11:41 am
Forum: Scenarios and BCI design
Topic: Train CSP Spatial Filter Trainer with Multiple Files?
Replies: 3
Views: 135

Re: Train CSP Spatial Filter Trainer with Multiple Files?

Hello,
You can concatenate files with the concatenation signal box. However pay attention to stimulation. If you have a stimulation that starts the training of the csp at the end of each file, you must filter it on the first files and leave it on the last.
Thibaut
by Thibaut
Fri Apr 24, 2020 11:36 am
Forum: Discussion about OpenViBE
Topic: Time synchronization & delays
Replies: 1
Views: 327

Re: Time synchronization & delays

Hello Arthur, Great to have put so much information, plus an example scenario, it's perfect. Firstly, an OpenViBE scenario runs "entirely" before trying again, so when all the boxes have performed their actions, it can start again. It cannot store pending streams. Therefore, each action can influenc...
by Thibaut
Fri Apr 17, 2020 12:58 pm
Forum: Discussion about BCI and related topics
Topic: scenario p300 speller - the last row disappears
Replies: 2
Views: 546

Re: scenario p300 speller - the last row disappears

HI,
Sorry I don't know, I have never had this kind of problem. It's weird can you send me a screen before and after the shift.
Thibaut
by Thibaut
Fri Apr 17, 2020 12:50 pm
Forum: Box and application development
Topic: Extracting the output from Motor Imagery
Replies: 1
Views: 314

Re: Extracting the output from Motor Imagery

Hi,
I'm not an expert of network process. But The easiest for you I think is python because python is easy.^^ BUt i term of speed and regularity I don't know. Actually I use LSL to communicte with external software. You have a box LSL Export.
Thibaut
by Thibaut
Tue Mar 31, 2020 10:43 am
Forum: Acquisition server and drivers
Topic: OpenVibe and Mitsar eeg amplifiers
Replies: 1
Views: 355

Re: OpenVibe and Mitsar eeg amplifiers

Thanks for your contribution.
by Thibaut
Thu Mar 12, 2020 8:25 am
Forum: Designer
Topic: Converting ov to gdf file format
Replies: 1
Views: 235

Re: Converting ov to gdf file format

Hi,
You have some scenario in a folder convert to convert file format to an other.
Thibaut
by Thibaut
Mon Feb 24, 2020 8:56 am
Forum: Designer
Topic: Motor Imagery Preprocessing
Replies: 1
Views: 364

Re: Motor Imagery Preprocessing

Hi,
What is the Question and the problem ? ^^
Thibaut
by Thibaut
Wed Feb 12, 2020 12:56 pm
Forum: Designer
Topic: Possible to embed FFT on Cyton OpenBCI board ?
Replies: 1
Views: 332

Re: Possible to embed FFT on Cyton OpenBCI board ?

Hi, No Thibaut. ^^ Sériously. I think it's impossible, I explain. The board conain the hardware and a software to manage component. Next, you use in OpenViBE the Acquisition server to translate your signal received by the OpenBCI card. Finally, OpenViBE designer use this signal to make his process. ...
by Thibaut
Tue Feb 11, 2020 3:26 pm
Forum: Driver development
Topic: building new driver
Replies: 4
Views: 5413

Re: building new driver

Hi,
It's with the source code not with the release.
Thibaut