more about reading EDF data correctly

24 views
Skip to first unread message

Joseph Picone

unread,
Apr 23, 2020, 9:09:40 AM4/23/20
to nedc_tuh_eeg
Another issue with the data that people need to be aware of: clinical
data comes with a variety of sample frequencies. For example, these
sample frequencies appear at least once in TUSZ v1.5.1:

hdr_sample_frequency =   1000.0
hdr_sample_frequency =   250.0
hdr_sample_frequency =   256.0
hdr_sample_frequency =   400.0
hdr_sample_frequency =   512.0

A complete listing of all the header information for each file in dev
and train can be found here:

DOCS/06_files_header_dump.txt

We usually resample all the data to 250 Hz before processing it. If
there is interest, we can make a resampled version of the data available.

-Joe
Reply all
Reply to author
Forward
0 new messages