Issues with EDF file data record duration

Hi,

I am trying to sort out a edf. file. I have used edf browser to convert raw data to edf file. But when i open the edf file the data record duration is 1 sec. With 34816 data records. and 7 signals even though there is only 6

It is opening up as being over 9hrs long when it should only be 50 mins and 46 secs.

When i use the convert from csv file to edf the duration is better coming up as 49 mins and 20 secs but there is no visible data even when i change settings and filters. With 29707 data records at 0.1 duration. With the correct 6 signals.

Im new to matlab and have had a look but cant seem to find a way to edit a edf only to view.

Im hoping there is a way i can edit using matlab. Thanks

Answer 1

[Taylor]

https://www.mathworks.com/help/signal/ref/edfread.html

https://www.mathworks.com/help/signal/ref/edfwrite.html

You will have to read the data with edfread, edit it within the MATLAB workspace, and then save it back to an EDF/EDF+ file with edfwrite. If you're spefically having issue with the file you're using, it would help to upload that file so we can work with it as well.