Search found 239 matches

by jlegeny
Fri Aug 19, 2011 12:45 pm
Forum: Help for building the software
Topic: Ubuntu 11.04 - building failed
Replies: 6
Views: 7891

Re: Ubuntu 11.04 - building failed

That is indeed weird. Does the folder openvibe-modules exist in your openvibe/trunk directory ?
by jlegeny
Fri Aug 19, 2011 12:07 pm
Forum: Help for building the software
Topic: Ubuntu 11.04 - building failed
Replies: 6
Views: 7891

Re: Ubuntu 11.04 - building failed

Hello dejwit,

could you please try to run

Code: Select all

$ ./linux-clean
$ ./linux-build
Also, did you modify your linux-init_env_command file?

Cheers
Jozef
by jlegeny
Fri Aug 19, 2011 8:07 am
Forum: Boxes
Topic: Multiclass classifier
Replies: 16
Views: 22899

Re: Multiclass classifier

Hello Rapten, a quick hint: in OpenViBE you can select a box and press F1 to view its own documentation in your browser. Now, the voting classifier has several parameters (you can see their detailed description in the documentation) but basically the output class will be equal to the stimulation set...
by jlegeny
Tue Aug 16, 2011 9:14 am
Forum: Designer
Topic: Replace the letters in P300 application with pictures
Replies: 4
Views: 5297

Re: Replace the letters in P300 application with pictures

Hello,

Glade designer 3.4.1 is actually a very old version. On our Windows machines we use Glade 3.6.6 (which is already quite old as well). You can download this version here : http://ftp.gnome.org/pub/GNOME/binaries ... lade3/3.6/

Cheers
Jozef
by jlegeny
Mon Aug 08, 2011 1:22 pm
Forum: Designer
Topic: Experiment based on the P300-speller
Replies: 3
Views: 5272

Re: Experiment based on the P300-speller

Hi Stefan, About the sounds: I intended to add a voice for each letter or picture. For example, if the user wants to spell the letter A, then a voice says ‘A’ will be played when this letter is chosen, for providing audio feedback. Is it possible to do so with OpenViBE? OpenViBE provides a box which...
by jlegeny
Wed Aug 03, 2011 6:34 am
Forum: Boxes
Topic: Surface laplacian (spatial filter)
Replies: 9
Views: 13364

Re: Surface laplacian (spatial filter)

Hello Rapten, the purpose of a spatial filter is to create the best possible linear combination of electrodes in order to obtain signal with least noise possible and to maximize the contribution of each channel to the 'useful' signal. It is thus important to know what you are actually searching for ...
by jlegeny
Mon Aug 01, 2011 7:10 am
Forum: Designer
Topic: Experiment based on the P300-speller
Replies: 3
Views: 5272

Re: Experiment based on the P300-speller

Hello stefan, thank you for using OpenViBE. I'll try to answer your questions to my best 1. If you use the xDAWN scenarios then, in theory, there is nothing to modify inside. The xDAWN spatial filter will select the best electrodes on its own. 2. It is possible, you will have to edit the .ui file in...
by jlegeny
Mon Aug 01, 2011 6:55 am
Forum: Boxes
Topic: P300 Visualization and icons
Replies: 7
Views: 9437

Re: P300 Visualization and icons

Hello stefan, welcome to the forums. Some time ago we have switched from using libglade to gtkbuilder to make the OpenViBE interface. The changes impact only the C++ code used to interact with the user interface files. The Glade Interface Designer is capable of editing .glade as well as .ui files an...
by jlegeny
Tue Jul 26, 2011 12:59 pm
Forum: Discussion about OpenViBE
Topic: trouble building openvibe on linux
Replies: 20
Views: 19092

Re: trouble building openvibe on linux

Hello, it is normal that the BLiFF dependency is not found. It is not necessary for OpenViBE and it is NOT supported by our team. As for your problem, can you please check the log file in scripts/software/log/native-packages.log ? I am currently installing openvibe in ubuntu 10.10 to see where could...
by jlegeny
Mon Jul 25, 2011 4:30 pm
Forum: Discussion about OpenViBE
Topic: trouble building openvibe on linux
Replies: 20
Views: 19092

Re: trouble building openvibe on linux

OpenViBE uses Ogre version 1.7.1, as the Ogre API changes very frequently, even for minor revisions it is quite possible that it will not work with ulterior versions.

Can you post the output of your linux-build to know where it fails, also, does the linux-install-dependencies script output any error?
by jlegeny
Mon Jul 25, 2011 1:13 pm
Forum: Discussion about OpenViBE
Topic: trouble building openvibe on linux
Replies: 20
Views: 19092

Re: trouble building openvibe on linux

For the lib/OGRE folder it is as expected, there should be more libraries directly in the lib folder as well, such as the libOgreMain.so I think that the problem is that during the compilation of OpenViBE the build process used your native ogre installation. A simple solution would be to uninstall y...
by jlegeny
Mon Jul 25, 2011 12:34 pm
Forum: Discussion about OpenViBE
Topic: trouble building openvibe on linux
Replies: 20
Views: 19092

Re: trouble building openvibe on linux

Hello, looking at the path from which the error comes from it seems like OpenViBE is trying to use a native Ogre installation. It indeed seems that the ogre dependency was not correctly (or at all) built by the install dependencies script and that OpenViBE now links to an Ogre installation made prev...
by jlegeny
Thu Jul 21, 2011 9:52 am
Forum: Driver development
Topic: stimulation listener vs/ signal display
Replies: 10
Views: 18825

Re: stimulation listener vs/ signal display

Hi,

could it be possible that the window of the signal display is too small to fit all of the received stimulations and thus some of them overlap? In case of doubt I would believe the stimulation listener as the signal display box is getting quite old.

Jozef
by jlegeny
Mon Jul 18, 2011 8:10 am
Forum: Driver development
Topic: Emotiv EPOC driver status
Replies: 109
Views: 2326575

Re: Emotiv EPOC driver status

Hello Rapten,

could you please show us the scenario which you are using ? In order for the map signal displays to work they have to have positions of the electrodes. You can find examples of scenarios using these displays in dist/share/openvibe-scenarios/box-tutorials

Cheers
Jozef
by jlegeny
Sun Jul 17, 2011 5:32 pm
Forum: Boxes
Topic: Inter-channels operations
Replies: 3
Views: 4360

Re: Inter-channels operations

Hello Matthieu and welcome to the forums,

you can use the Simple DSP box to do what you want. Since this box operates on signals rather than channels, you will have to use the channel selector box to split your signal into channels and then a signal merger to put them back.

hope this helps,
Jozef