OpenViBE forum

Hi Yael, It is possible that there is a problem of correspondence between the numbers of the electrodes and their names. The simplest way would be to use the "Channel Rename" box to avoid getting confused in your numbers. And to know the name associated with the numbers: create an openvibe scenario ...

Hi,
First, Organize your script it's a real spiderweb.^^
Second to avoid some problem use the last version of OpenViBE.
Third You can make one temporal filter for each frequency band.
Fourth you can use the box csv writer to save your result on csv.
Python is not necessary here.^^
Thibaut

Hi,
You have the last version of OpenViBE ? You build your own OpenViBE ? When you launch OpenViBE he say what ?
Thibaut

If you use an epoch average or something like that, the signal display is really weird that's normal. Use the continous bar. it should work. Concerning the delay, it is normal also if the first data were recorded after a certain lapse of time, it waits the first data to be displayed. Ps : The "gain"...

Hi, I have never used matplotlib for animation, but I think it must be pretty heavy as a system. Personally, I made a system as you describe it, but I coded it in C ++ in a specific box. For visualizations, I think you should turn to the visualization box implementation. Or use existing ones by pass...

Hi, I use GDF, CSV and OV file only. With GNautilus it works for me. GDF and OV for Raw Signal (the double write is not necessary I think but i'm a partisan of Murphy's law.^^). CSV only for simple data such as the calculation of my interest variables. I have never written in EDF because there is no...

Hi, I'm not sure, I read your script "in diagonal". The fact that it takes 10s is that you need 10s of information not that it is slow. In this case you can simply use additional variables in your python script. You have an available initialize function and a __init__. the process will just have to ...

Hi,

I'm not sure I understood
your problem is that your script is too slow and lags behind as you go?
or the problem is that you do not get the instructions at the exact second?
Or does your script start with each chunk?

Thibaut

Hi,
At first glance, your csv is not formatted in the "OpenViBE Style" you can simply test a scenario with a sinus oscilator and a csv writer to see how it records the csv. For the EOF you probably have a return line too much or less (I do not remember)
Thibaut

Hi,
I had several problems with the Nautilus. Turn on your headset before launching the acquisition server. I also click on "driver properties" before doing "connect".
Thibaut

Hi,
I haven't this but send us the error message in console window (or read if text is enough to fix your problem^^). One thing for my previous tests the EEG helmet must be turn on before launch acquisition server.
Thibaut

Hi,
I do not see the problem apart from the chunk stimulation date but it does not matter
Thibaut

Hi,
Sorry... Actually it's impossible to avoid title bar and gray toolbar in full screen. Only "Display Cue Image" have a setting to make this.
Thibaut

What you are asking for is not so easy to implement. Try to use a second screen it's easier.^^

This warning is write when stimulation haven't continous date it's not so important