Search found 9 matches
- Fri Dec 15, 2023 7:22 am
- Forum: Boxes
- Topic: GDF replay to XDF
- Replies: 3
- Views: 16334
Re: GDF replay to XDF
Hi Thomas, Thank you for your answers. I'm using OV 3.1, and i will update it ASAP. I was doing the conversion as follows : - Replay GDF with OV - Record OV LSL streams with LabRecorder Do you have any clue about the scaling factor i should apply to get rid of these scale and offset ? Thanks for the...
- Thu Nov 30, 2023 1:31 pm
- Forum: Boxes
- Topic: GDF replay to XDF
- Replies: 3
- Views: 16334
GDF replay to XDF
Hi all, I'm recording my experiments with LSL (xdf data format) and I use GDF box as a back up file. For some reasons experimental reasons, I need to work with xdf files, so I only have to replay my GDF with OV and record it with LSL. This part is working properly. My problem is that it seems that t...
- Sat Dec 17, 2022 7:24 am
- Forum: Help for building the software
- Topic: Ubuntu 20.04 build Error
- Replies: 1
- Views: 8026
Ubuntu 20.04 build Error
Hi, I'm trying to build OV on Ubuntu 20.04 (Focal Fossa), as i saw on the forum that it was feasible. After dealing with install-dependencies issues (had to manually install git), i'v got somme errors during build.sh installation : CMake Deprecation Warning at CMakeLists.txt:3 (cmake_policy): The OL...
- Tue Jul 12, 2022 8:19 am
- Forum: Boxes
- Topic: Python Box - Spectrum output
- Replies: 1
- Views: 6928
Python Box - Spectrum output
Hi all, I have a quick question about python scripting box : I'd like to make a spectrum stream as an output from my python box. Following tutorials on python box scripting (http://openvibe.inria.fr/tutorial-using-python-with-openvibe/) I was not able to know if it is feasible or not. Is it possible...
- Mon Oct 18, 2021 7:06 pm
- Forum: Scenarios and BCI design
- Topic: Extracting Peak Alpha Frequency and IAF
- Replies: 3
- Views: 7790
Re: Extracting Peak Alpha Frequency and IAF
Thank you for tour answer, I don't want to do anything as complicated actually. My need is pretty simple : to get the frequency at the maximum amplitude of a band of interest (Say alpha). When You close your eyes, your alpha oscillations are characterised by a clear peak between 8-12 hz. I want a wa...
- Mon Oct 18, 2021 11:41 am
- Forum: Scenarios and BCI design
- Topic: Extracting Peak Alpha Frequency and IAF
- Replies: 3
- Views: 7790
Extracting Peak Alpha Frequency and IAF
Dear all, I'm sorry if this subject has already been treated, yet i found nothing on it. My question is pretty simple : i'm trying to find a way to assess peak alpha frequency in real time (frequency corresponding to max(pow) in alpha range), to use it as my main BCI parameter. Is there a function i...
- Thu May 06, 2021 5:39 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server and LSL with 2 different PC
- Replies: 4
- Views: 8489
Re: Acquisition server and LSL with 2 different PC
Dear Thomas,
I'm running 2 Windows 10 PCs.
For the firewall, all I can say is that lsl communication between the 2 pc is working fine both for writing or reading stream on one or the other.
Thanks for your help !
I'm running 2 Windows 10 PCs.
For the firewall, all I can say is that lsl communication between the 2 pc is working fine both for writing or reading stream on one or the other.
Thanks for your help !
- Tue Apr 13, 2021 9:52 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server and LSL with 2 different PC
- Replies: 4
- Views: 8489
Re: Acquisition server and LSL with 2 different PC
Thanks for your reply ! First, I need 2 pc so that subjects can realize the cognitive task (say Oddball) while experimenters may run real time analysis on another computer without disturbing the cognitive task. As i said, my 2 computer are linked by a simple ethernet connection. LSL communication in...
- Mon Apr 12, 2021 9:21 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server and LSL with 2 different PC
- Replies: 4
- Views: 8489
Acquisition server and LSL with 2 different PC
Hi everyone, I'm new here and with OV, i'm trying to set up P300 experiments with OV for real time BCI. I'm using a Brain Product EEG device and Psychopy to run a classical oddball task. Everything is synchronized via LabStreamingLayer (LSL). I have one computer on which I'm running Psychopy, and th...