Search found 23 matches

by Thomas
Tue Apr 13, 2021 8:06 am
Forum: Help for building the software
Topic: Error using Python Boxes
Replies: 2
Views: 23

Re: Error using Python Boxes

Hi David, Sorry you found out the hard way, and thanks for pointing it out. For people landing on this post laster, here is the website documentation with links to the compatible versions: http://openvibe.inria.fr/tutorial-using-python-with-openvibe/ I have also updated the release post with the acc...
by Thomas
Fri Apr 02, 2021 8:43 am
Forum: Discussion about OpenViBE
Topic: CSV file writer - sampling frequency issue
Replies: 1
Views: 38

Re: CSV file writer - sampling frequency issue

Hi JelenaJ, If matlab sends data at 512Hz, a time based epoching (setp=0.1s, duration=3s) should create chunks of 3 seconds every 0.1 seconds of the signal, but it should not change the sampling frequency. You can confirm it if you create a scenario with just the acquisition client, a time based epo...
by Thomas
Fri Mar 19, 2021 8:23 am
Forum: Acquisition server and drivers
Topic: TCP TAGGING
Replies: 10
Views: 475

Re: TCP TAGGING

Hi Marios, Sorry for the mistake in my previous message, the biderectionnal game box is not yet in the development branch. To use it now, you need to build OpenVibe with the following branches for each repo: - meta: development - sdk: development - designer: development - extras: 61-feature-bidirect...
by Thomas
Wed Mar 17, 2021 1:05 pm
Forum: Acquisition server and drivers
Topic: TCP TAGGING
Replies: 10
Views: 475

Re: TCP TAGGING

Hi Marios, The Brain Hero unity app is at its early stage of development, and not integrated in OpenViBE yet, so you will not be able to use it until a future release of OpenViBE. The Hello Bidirectionnal box is present on the development branches of the code base on our gitlab . You need to checkou...
by Thomas
Thu Mar 11, 2021 8:40 am
Forum: Boxes
Topic: Issues with classifier processor box running p300 speller
Replies: 1
Views: 42

Re: Issues with classifier processor box running p300 speller

Hi, Indeed a bug was found on the P300 speller. A fix has been applied to the development branch, so if you have already built OpenViBE yourself, you need to: - Checkout development branch on all repositories (meta, sdk, designer and extras). - Run install_dependencies script again - build. Then you...
by Thomas
Thu Feb 18, 2021 10:23 am
Forum: Help for building the software
Topic: Errors with User Account
Replies: 2
Views: 92

Re: Errors with User Account

Hi, To follow up on my previous message, it appears that no scenarios are polluted with my user path finally. My user path appears because openvibe prints the file and line at which the error appends when an error appends. As openvibe was built on my machine, it naturally prints the path to the erro...
by Thomas
Wed Feb 17, 2021 3:57 pm
Forum: Help for building the software
Topic: Errors with User Account
Replies: 2
Views: 92

Re: Errors with User Account

Hi,

It seems that I polluted some scenarios when updating them before the last release. Apologies for this.

I will have a look at this. What scenario did you try to run ?

If you can provide a more complete error log, that would be very appreciated.

Thanks,
Thomas
by Thomas
Wed Feb 10, 2021 8:54 am
Forum: Help for building the software
Topic: Building on Ubuntu
Replies: 2
Views: 106

Re: Building on Ubuntu

Hi Bartlomiej, I think the problem comes from your python installation which is missing shared library. What Linux distribution are you using ? Did you compile your python installation from source, or installed it with package manager ? If you compiled it yourself, at configure step, did you enable ...
by Thomas
Wed Feb 03, 2021 9:25 am
Forum: Discussion about BCI and related topics
Topic: Paper SSVEP
Replies: 1
Views: 555

Re: Paper SSVEP

Hi Nchio,

Thanks for sharing!

Cheers,
Thomas
by Thomas
Wed Feb 03, 2021 9:20 am
Forum: Designer
Topic: Designer doesn`t start.
Replies: 6
Views: 3468

Re: Designer doesn`t start.

Hello, Yes, it is possible to fix this. Maybe the version of Python3 you have installed is not the right one. Please see the following page for version info: http://openvibe.inria.fr/tutorial-using-python-with-openvibe/ When installing python, make sure to tick the box "Add Python to Path", in order...
by Thomas
Thu Dec 10, 2020 4:29 pm
Forum: OpenViBE News
Topic: OpenViBE 3.0.0 released
Replies: 1
Views: 2075

Re: OpenViBE 3.0.0 released

Here is the list of changes necessary if you would like to migrate one of your plugins, compatible with OpenViBE 2: OpenViBE types were removed and replaced with standard types: OpenViBE::uintXX -> uintXX_t OpenViBE::intXX -> intXX_t OpenViBE::float64 -> double OpenViBE::boolean -> bool Some functio...
by Thomas
Thu Dec 10, 2020 4:20 pm
Forum: OpenViBE News
Topic: OpenViBE 3.0.0 released
Replies: 1
Views: 2075

OpenViBE 3.0.0 released

We are pleased to announce the release of OpenViBE-3.0.0 ( download ). This release follows the beta version advertise over a month ago. Here is a list of the updates since OpenViBE 2.2.0: Python2 support dropped in favour of Python3 (Python 3.7.8 required) for the scripting box. Python provides a t...
by Thomas
Mon Nov 16, 2020 2:52 pm
Forum: Boxes
Topic: Help / advice needed for PLV (Hilbert, connectivity measure, ...)
Replies: 2
Views: 366

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

Hi, Yes we are aware of issues with the connectivity measure box. Unfortunately we do not have a fix at the moment. We are currently working on this box and should be able to provide a stable version in a future release. Although the release containing the fix will not be before 3 to 6 months, the f...
by Thomas
Mon Nov 16, 2020 2:23 pm
Forum: Acquisition server and drivers
Topic: Problems compiling gtec usbamp driver
Replies: 1
Views: 188

Re: Problems compiling gtec usbamp driver

Hi, Looks like there is a problem with the static_cast. An easy way to overcome this is to edit the file /home/brix07/openvibe-3.0.0-beta-src/extras/contrib/plugins/server-drivers/gtec-bcilab/src/ovasCDriverGTecGUSBampLinux.cpp and replace the static casts with C-style casts. For example, replace: m...
by Thomas
Wed Oct 28, 2020 8:44 am
Forum: Boxes
Topic: What does samples per buffer mean?
Replies: 1
Views: 164

Re: What does samples per buffer mean?

Hi Naomi, When a box sends data, it sends a certain amount of samples at a time in a buffer. The "Samples per buffer" setting defines the amount of samples the box should send in one chunk. The GDF reader box will extract the sampling rate from the GDF file, and send as many buffers (chunks of data)...