ssvep-bci-2-training-acquisition Training Target

Working with OpenViBE signal processing scenarios and doing scenario/BCI design
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nugroho.budi
Posts: 3
Joined: Tue Dec 10, 2013 7:27 am

ssvep-bci-2-training-acquisition Training Target

Post by nugroho.budi »

Hi,
I want to test my olimex EEG-SMT using openvibe SSVEP scenario.
step 0(ssvep-bci-0-acq-test) and step 1(ssvep-bci-1-ssvep-configuration) is successfully accomplished.
but, when I run ssvep-bci-2-training-acquisition, the Training Target window doesnt show automatically.
it there something wrong with my setting or OS(win 7 x86)?
how to fix this problem?

thankyou,
nug

jtlindgren
Posts: 778
Joined: Tue Dec 04, 2012 3:53 pm
Location: INRIA Rennes, FRANCE

Re: ssvep-bci-2-training-acquisition Training Target

Post by jtlindgren »

Hello nug, thank you for the report. It seems there's a bug due to spaces in the install location "Program Files (x86)". :(

One way to fix it is to install openvibe to another location with no spaces in the path.

[ If you want to keep it in the default location, you need to do the following:

1) Copy ssvep scenario files to a writeable location (should do this anyway)
2) Change "Run Command" box parameters in the scenario to

"${External_Application_Launcher}" openvibe-ssvep-demo --run-bg trainer

3) Edit "C:\Program Files (x86)\openvibe\bin\openvibe-external-application-launcher.cmd", change the last line to

%OV_RUN_IN_BG% "%OV_PATH_BIN%\%OV_RUN_APP%" %1 %2 %3 %4 %5

]


Best,
Jussi

nugroho.budi
Posts: 3
Joined: Tue Dec 10, 2013 7:27 am

Re: ssvep-bci-2-training-acquisition Training Target

Post by nugroho.budi »

Hi Jussi,
thankyou for the solutions and it works.

best,
nug

soumyajit
Posts: 1
Joined: Fri Jan 05, 2018 2:34 pm

Re: ssvep-bci-2-training-acquisition Training Target

Post by soumyajit »

Hi Jussi

I was facing the same problem as nug, I tried the solution you had suggested. However, now I am getting the following error.
openvibe-ssvep-demo.exe has stopped working

Are there any known workarounds to this problem?

Thank you!

Best
Soumyajit

jtlindgren
Posts: 778
Joined: Tue Dec 04, 2012 3:53 pm
Location: INRIA Rennes, FRANCE

Re: ssvep-bci-2-training-acquisition Training Target

Post by jtlindgren »

Hi,

seems we reintroduced the 'space bar' bug in the OV 2.0 merge; the openvibe.conf file came from a branch at Mensia where the issue had not been addressed. We'll fix that in a patchlevel release soon.

Anyway, what you see instead is a crash of the application. With the amount of information you provide its difficult to guess what could be wrong. Are you using OpenViBE 2.0? (we don't have resources to address issues with previous versions). After crash, you should have some log files in

C:\Users\yourname\AppData\Roaming\openvibe-2.0\log

Can you paste or attach here the ones with names starting openvibe-ssvep-demo*.


Thanks,
Jussi

kjw414
Posts: 1
Joined: Tue Aug 21, 2018 7:19 am

Re: ssvep-bci-2-training-acquisition Training Target

Post by kjw414 »

Hi,
I have the same problem which does not pop up the stimulation window until re-install open-vibe in another directory.
Now, the stimulation window popped up but, the targets do not appear in the window.

Here is my situation.
1) My open-vibe SW installed in D:\
2) The cmd shows some messages (i.e., [INF]0 > Target set to -1, 0, 3 ) after press <space-bar> by running ssvep-bci-2-training-acquisition.xml
3) Window popup with title name 'SSVEP Stimulator' but, a just black window that's all. (the screen freq. = 60Hz)

Can you give any comments to solve this problem?

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