OpenViBE forum

Hi,
It's plan it's plan.^^
But I'm Alone actually on OpenViBE maintenance and upgrade features. (I must Check how he decide to use Python it can be weird but if it's not so weird I try to implement a Box Python3 and rename previous Python2.)

HI, I don't know BrainBay but you can maybe use LSL to pass from acquisition Server to LSL if brainbay know LSL. (Acquisition Server -> LSL in website http://openvibe.inria.fr/how-to-use-lab ... -openvibe/)

Hi, I don't know enough about neurophysiology and Laplacian to answer this question. Naively, I would say to use only C3 and C4 if that is what you want and also that you have them, especially since the activity picked up by the electrode is diffuse (it is not the activity at the precise point but i...

Hi, The Example on the web site can help you,n we have 10 input to 2 outputs. http://openvibe.inria.fr/documentation/1.2.2/Doc_BoxAlgorithm_SpatialFilter.html But for the coefficient you must use, I don't know (If you want CX only with FPX and FX electrodes I don't know how to make that if it's poss...

Hello, I'll start at the end the answer is easy, yes if you have several events, they are separated by a ":". You have the times also separated by a ":". If the time is identical it is indeed that you sent two stimulations at the same time. If the time is different it is because you had two separate...

Hi,
You have a new box "xDawn Trainer" replace with this.
Thibaut

Hi,
I don't see all, give the xml file instead of screenshot it's easier for me to see directly the scenario.^^
But to stop the scenario you must have a player controller box who make an action (as pause or stop) when he received a stimulation (in parameter too).
Thibaut

Hi, First the time of the Chunk, Yes he keep the same time (when you see some code you can see the starttime and endtime is past during the process. The datageneration (acquisition in your case) give the tempo. You can have a lag if data is send an other time and your process "serie" is not finished...

Hi, Yes, you can make your "wait screen" first and next with a timeout box set to 1 (the minimum value) you can set the good stimulation to display your "wait screen". It's the simpliest way without script. If you use lua script during your protocol to manage the time for exemple you can send at the...

Hi,
Just Read the first line.
Your file haven't a channel name Nz for Reference (your signal maybe don't need a reference channel)
Thibaut

Hi sonia, So first you do not need Matlab.^^ Moreover, for real time, matlab is not the fastest language. What I advise you is first to recover your signal and recover your Alpha (with a channel selection and a temporal filter). Then display the signal. For your Neurofeedback protocol, you could use...

Hi, First It's good to save raw signals, next before some signal processing is really common to use a temporal filter. The default option can be stay : butterworth, band pass, order 4, Low Cut 1, High Cut 40, Ripple 0.5. You have a 50Hz (or 60Hz dpeend on your country) noise because it's the frequen...

Hi, This Warning Say I are on late. Your computer (or hardware) have had a lag and OpenViBE say "we have a second behind what is planned" Thibaut Ps : On each clock He indicates how much delay you have if the warning comes only 4 time this delay is on launch of scenario but during the rest your have...

Hi,
LSL is Lab Streaming Layer, if your product can send value by lsl you can reveive this directly on openvibe

Hi,
I did a scenario that works (with a lot of commentary). I have make both a common use and the use i think you wan't.
Thibaut