OpenViBE forum

Hi there,

I have an EMG machine and i want to use on openvibe.
How and where do i start?

What do i need to create the driver?
what kind of specifications?

Hi there,

I need some labels to understand the colors red,blue,purple, green yellow
that shows up in the 2d map
what do they mean in terms of how they are related to the brain signals?

iuri

Hi there, I built an motor imagery classifier program and I would like to use AAR, Adaptative AutoRegressive method to the classifier phase. However i have no idea if i need to create a new classifier algorithm box or add the method somewhere in the algorithm boxes already existent. For example I se...

Hi yann, I need to learn about laplacian surfaces read xDAWN article again and understand the process described on it, in order to calculate the best coefficients to the spatial filter. I let you know about. I tried to run the program without spatial classifier at all (in the offline training and in...

Yann, I changed the spatial coefficients to some different positions in attempt to have similar results of the motor imagery sample available on openvibe. However, the resulting presentation seems to be not calibrated. Which means, after whatever red arrow comes up (i.e. left or right), the blue bar...

and from where did you take the coefficients? 4 0 -1 0 -1 -1 0 0 -1 0 0 4 0 -1 0 0 -1 -1 0 -1 i opened the .gdf i am using, in order to see from where the coefficients come. But i don't find any reference of them. It means, there is no such a structure in the gdf file that stores the spatial filter ...

Hi there, I am creating a new scenario on openeeg. Basically i already built the steps and placed all the boxes i need to work with. now i am trying to properly set the parameters according with the pre-recorded data i am using. I am stuck at spatial filter box. I wonder what values i need to put in...

Hi there, Yan, after all the reading, researching and studying i have made... i succeed in this task! I must have read about 50 articles plus the whole biosig library. I am running openvibe version 0.4 rc4 and i played the scenario related to hand movements openvibe-scenarios/bci/motor-imagery/motor...

Hi there,

i am reading the documentation about boxalgorithm, more specifically the gdf file reader box.
http://openvibe.inria.fr/documentation/ ... eader.html

where are its respective C++ source code?

I would like to learn how to write reading, classifying and processing algorithms.
I would like to understand the process and aply them to build mouse cursor movements

cheers,

i want to read a gdf pre-recorded data and display a box with left and right arrows lighting up according to the brain signals recorded being read

do you know how do build such an small application?

Hi there, in attempt to replicate an openvibe scenario i needed to use the box Streamed matrix Interlacer However, i couldn't find it in Box algorithms. There is only the box Streaming -> Streamed Matrix Multiplexer I believe the issue could be the version i have of openvibe. Mine is version 0.4.0.r...

Thank you very much renard,

it helped a lot. I watched the video tutorial, installed openvibe.
i am having a hard time now using .mat file as input data.
i already posted a thread about it.

cheers,

Hi there, I am trying to convert a .mat file to a .gdf file in order to be able to use the data with openvibe Designer suport. i believe i need information about the original file, such as specific info regarding number of chanels, blocks, events, etc, in order to fulfill the gdf data structure and ...

I read openvibe documentation... I was wondering if i can use openvibe library to accomplish my graduation project. The objective is to build a small application to move the mouse cursor to the left and right directions based on EEG data already collected. So, it is an offline application that will ...