Search found 68 matches

by Thomas
Tue Oct 05, 2021 5:07 pm
Forum: Help for building the software
Topic: OpenViBE Build Error
Replies: 8
Views: 234

Re: OpenViBE Build Error

A compiler error can apparently happen around initialisers. Until we update this in the source code, in the file c:\openvibe\openvibe31\designer\plugins\visualization\simple-visualization\src\algorithms/ovpCAlgorithmSphericalSplineInterpolation.h, line 46 and 47: Replace std::array<double, 2004> m_s...
by Thomas
Mon Oct 04, 2021 7:51 am
Forum: Acquisition server and drivers
Topic: Need help for OpenViBE 3.1.0 32bit Acquisition server
Replies: 2
Views: 173

Re: Need help for OpenViBE 3.1.0 32bit Acquisition server

Hi, Indeed, Wearable Sensing DSI equipment could only be used on 32bits versions of OpenViBE. Some interfaces have changed since OpenViBE 3.0.0, breaking the link with the DLL. The solution you have here, is to still use OpenViBE 3.1.0 for designing your scenario, and connect it to the Acquisition s...
by Thomas
Wed Sep 01, 2021 8:09 am
Forum: Boxes
Topic: keyboard stimulator
Replies: 1
Views: 112

Re: keyboard stimulator

Hi Renata, The WeTransfer link you provided has expired, could you share the data again ? Without seeing the scripts or scenario, I will only state the obvious: Can you double check that OV_popInputBuffer() is called on the right input index. Also, the latest versions of OpenViBE were compiled with ...
by Thomas
Mon Aug 23, 2021 8:39 am
Forum: Boxes
Topic: Issues with classifier processor box running p300 speller
Replies: 3
Views: 348

Re: Issues with classifier processor box running p300 speller

Hi,

There is indeed an issue with the sources archive. I will fix it ASAP.

In the meantime, you can get the sources from the Inria gitlab. You can find instructions here: http://openvibe.inria.fr/repo-instructions/

Cheers,
Thomas
by Thomas
Mon Aug 16, 2021 8:11 am
Forum: Acquisition server and drivers
Topic: auxiliary channel biosemi
Replies: 1
Views: 164

Re: auxiliary channel biosemi

Hi,

Looking at the code, there doesn't seem to be any support for the AUX channels of the biosemi front panel.

I would like to look at it if I can get my hands on the hardware to test it.

Cheers,
Thomas
by Thomas
Mon Aug 16, 2021 8:06 am
Forum: Acquisition server and drivers
Topic: Missing drivers for Linux (gtec gUSBamp, getec gNautilus Set, Unicorn Set)
Replies: 1
Views: 125

Re: Missing drivers for Linux (gtec gUSBamp, getec gNautilus Set, Unicorn Set)

Hi Thunfisch, It's been a while since hardware drivers were added for linux indeed, and the only driver you can use at the moment is the gUSBamp. There is no need to update the OpenViBE driver to build for 64bit architecture. When compiling OpenViBE with the 64bit hardware API installed in /usr/lib ...
by Thomas
Wed Aug 11, 2021 10:36 am
Forum: Acquisition server and drivers
Topic: Problems compiling gtec usbamp driver
Replies: 3
Views: 468

Re: Problems compiling gtec usbamp driver

Hi Thunfisch, Yes, the problem comes from namespacing that was added in the file, but kept around the function. To fix it, in /home/ubuntu/work/meta/extras/contrib/plugins/server-drivers/gtec-bcilab/src/ovasCDriverGTecGUSBampLinux.cpp, change: void AcquisitionServer::OnDataReady(void* param) to void...
by Thomas
Mon Aug 09, 2021 9:25 am
Forum: Acquisition server and drivers
Topic: BioSemi with auxiliary sensors
Replies: 2
Views: 2819

Re: BioSemi with auxiliary sensors

Hi, Yes indeed, the Biosemi documentation mentions the support of 7 sensor channels. Looking at the OpenViBE driver code, I don't see any specifics about processing these channels. If you don't see extras channels to the EEG channels you expect (in a Signal Display box for example) , I would expect ...
by Thomas
Wed Aug 04, 2021 8:40 am
Forum: Discussion about OpenViBE
Topic: openvibe 2.2 installation in Raspberry Pi 3 Model B+
Replies: 4
Views: 3344

Re: openvibe 2.2 installation in Raspberry Pi 3 Model B+

Hi, The error you are showing is from the dependencies install script. There seem to be a problem with vrpn and lsl libs. The install dependencies scripts downloads archives of lsl and vrpn, uncompresses them and builds them. Compilation seems to have failed since your log shows that the .so and .a ...
by Thomas
Mon Aug 02, 2021 7:59 am
Forum: Feature Requests
Topic: Neurosity Crown native support
Replies: 2
Views: 584

Re: Neurosity Crown native support

Hi skan, We are currently not working with this headset, and are a bit short on man power to look at implementing its driver. If someone knowing and willing to implement it reads this message: we can of course spend some time integrating it. As for the LSL box, it is labelled "unstable" as it is lac...
by Thomas
Mon Aug 02, 2021 7:46 am
Forum: Boxes
Topic: Help / advice needed for PLV (Hilbert, connectivity measure, ...)
Replies: 5
Views: 663

Re: Help / advice needed for PLV (Hilbert, connectivity measure, ...)

Hi, Yes, there is. We have now released OpenViBE 3.1.0, which contains a new version of the connectivity measure box. If you wish to use it, you can obtain OpenViBE 3.1.0 on the download page . You can find the box documentation here . Overall, you can find about any box updated/added in the change ...
by Thomas
Fri Jul 09, 2021 4:21 pm
Forum: Boxes
Topic: Artifact amplitude box settings
Replies: 2
Views: 155

Re: Artifact amplitude box settings

Hi Isabel, Looking at the code, there is no notion of unit. The max voltage value is used as is, and simply compared to each sample received from input signal: IF sample > maxVoltage --> artifact detected! . Therefore, if your input signal is in microvolts, set the max voltage setting in microvolts,...
by Thomas
Thu Jun 17, 2021 1:35 pm
Forum: Scenarios and BCI design
Topic: motor-imagery-bci-2-classifier-trainer
Replies: 11
Views: 749

Re: motor-imagery-bci-2-classifier-trainer

Ok great, that's what I meant indeed. :D
by Thomas
Wed Jun 16, 2021 10:26 am
Forum: Scenarios and BCI design
Topic: motor-imagery-bci-2-classifier-trainer
Replies: 11
Views: 749

Re: motor-imagery-bci-2-classifier-trainer

Hi, Have you tried the scenario with different people ? There are people for whom BCIs do not work so well, so it is worth trying with someone else, to see if you get better results. Another point, on the laplacian, is the set of electrodes used. They are not very close to each other, so this filter...
by Thomas
Mon Jun 14, 2021 10:34 am
Forum: Scenarios and BCI design
Topic: motor-imagery-bci-2-classifier-trainer
Replies: 11
Views: 749

Re: motor-imagery-bci-2-classifier-trainer

Hi,

Yes, unfortunately, I confirm that I meant it the way I wrote it.

Confusion matrices are displayed this way. Please have a look at this wiki page for more details.

Cheers,
Thomas