play back BDF converted from my SD Card recording? [resolved]
DreamBigDreamLucid
CT USA
[original thread title: "BDF+ to SD Card Error", see comments below.]
Please Help: I set up my board to export the data collected as BDF to SD Card and then went to bed for about 9 hours. When I woke up, I went to playback but couldn't select the file and my SD card is empty!
Please note the date of the recording I want to retrieve is 2/13/21.
When I tested this morning as BDF to SD, I don't see it in the folder: C:\Users\12036\Documents\OpenBCI_GUI\Recordings as I assume only OpenBCI file formats go there.
Can anyone explain where the BDF directory is, if there is one and why the SD didn't register my data? Its a brand new card and its worked very well before with no prior issues; I had the data limit on how much time it could collect to NONE and its a SCANDisk Ultra 10 Speed 400 GB.
Thank you all
Comments
Its there in all its glory the large file but I cant select it for playback and it doesnt appear on my SD card...
I'm seeing now that there are reported issues of the BDF file generation causing the GUI to freeze and to produce corrupted files, which I think it what has happened here since Playback cant use it. Is there a fix for this?
Mentioning Richard @retiutut.
Dream, It looks like you have a valid BDF file? I don't quite understand the title of this thread, "BDF+ to SD Card Error". Can you explain why you chose this phrasing? Is not the issue you are reporting: that the SD card recording you made was turned into BDF by the GUI, but you cannot now play that back?
There is an open source utility EDFBrowser that can read / write / convert many EEG data file formats, including BDF.
https://www.teuniz.net/edfbrowser/
William
Hey there @DreamBigDreamLucid,
CSV values are stored to SD card on the device itself. This is separate from how/where the GUI saves playback files based on data received from the device.
William is correct. Please use the EDF Browser or another program to view the BDF+ recording. If you would like to use the GUI or something else that uses CSV, you can select the OpenBCI Data Format instead.
GUI v5 can:
Hope this helps,
RW