BioSemi.nl

Great!!!

Thank you and have a great week-end

Alex.

Hello Cohen,

Everything works fine with streaming the data in real time from Biosemi. However, I need a clarification from you.

I understand that the system that I have is set-up for 64 sensors (+ 8 EXG + AUX + trigger line) and because of that Biosemi will always send out packages of data for 72 ...

Thank you for the clarification, Cohen!!!

It appears to be a bit different from what I remember from the V2 (that is why I thought I was doing something wrong), where (as far as I remember) I could stream a subset of channels.

Everything else seems to be fine, including the SF, which I had ...

Hello,

I am using the LSL library in C++ to read data in real time from Active_V3. The connection is established correctly, samples appear to be pulled correctly and and triggers are also read correctly. Then only problem that I seem to have is the number of channels that are sent to LSL by Biosemi ...

Thank you!!!

Hello Cohen,

I would just like to confirm with you that I can ignore the "offset" parameter in my calculations even with the new Active3 system.

Thank you.
Alex.

Thank you so much for your quick and detailed explanation. The small value of the offset that you mention is exactly in line with what I found (a fraction of uV), so it is negligible. I just wanted to have a confirmation from you guys, because I trust your expert opinion. I occasionally use eeglab ...

Thank you for your quick response. I think I might have not explained correctly my question or maybe I misunderstood your answer.

Bear with me, so I can be on your same page.

So, in my question I was not referring to the DC voltage, which I know is present because the data are not high-passed. I ...

Hello,

Apologies if this question sounds a bit silly.

So I have just realized that when converting the digital data into physical values I was not using the offset. I see that the offset is not mentioned in the page where the structure of the data for Biosemi is described (https://www.biosemi.com ...

Hello,

I am using the matlab code that I found on the website (TcpIpClientMatlabV1) to read EEG data. Everything looks fine with the exception for the amplitude of the data. It seems like the data that I read from TCPIP need to be calibrated. This happens even though I remove the DC component. Is ...