AH. Understood. It is fine for me. BTW, I runned a very basic test at the Hospital last Friday. We took an EEG on a patient using bipolar montage 5 electrodes each hemisphere. I finally used my WiFi s

The GUI will only play back CSV files, BDF files are best used with EDFbrowser or some other software.

I was able to read the file with EDFbrowser without any conversion. So I assume the recorded file is OK.

This is the same stretch of data plotted in EDFBrowser and it seems to match up very well.

EDFBrowser can annotate. There are other EDF tools that can cut/copy sections.

I have now done a test with EDFbrowser. I also get an error message about the data in visbrain.

I found the main problem now. I had soldered some wires to the board and plugged some. The board is very tight and diagonal in a small case. The contacts have connected a bit. Partly also with the upp

Just finished up the fix for the BDF file format. Before, it would produce invalid BDF files, and not all of the data was being written to file. The only way to fix this was to use the EDFBrowser Head

The text CSV recording file produced by the GUI, is raw, without any signal processing. You can view that with various programs that can input CSV, such as EDFBrowser, Matlab, etc. Do note that the Cy

There are many other programs that can process CSV files of EEG data, for example EDFBrowser and Matlab. The GUI can also output BDF (like EDF) directly, which can be read by EDF / BDF programs. Addit

Probably getting one or more bipolar lead EKG recordings from the chest using OpenBCI, saving to BDF, and then using EDFBrowser to make the BDF file into a WAV file would work for you. 

https://www.teuniz.net/edfbrowser/

https://www.teuniz.net/edfbrowser/

There is a utility program, EDFBrowser, that lets you do a whole range of operations on an EEG file. It can read, signal process and convert various input formats, including CSV.

The EDFBrowser program can convert between csv and many other formats,

data resolution. Alternately you could use the EDFBrowser (do another search), to convert between formats.

There are other ways to display time series data, than the GUI. Such as the EDFBrowser utility, etc.

EDFBrowser is open source and supports annotating EEG data files. It can also convert your CSV data into EDF / BDF standard interchange formats. (BDF+ is the 24 bit version of EDF, which is 16 bit.)

I want to use the BDF+ file type so I do not have to convert the data in EDFbrowser to BDF for import into EEGLAB. 

Until this is resolved you could use EDFBrowser to convert.