Hi,
I want to perform an online filtering of an eeg signal acquired with an external device. This is an initial draft (not for an online measurement, yet) of the future vi because I want to be sure for now that the filtering is working. However, the result does not appear. More precisely I cannot view the two signals at once. The sampling frequency is 256Hz and the filter used is Butterworth, passband, 1-20Hz. I do not know where is the mistake, although I search a few days in the forum after an answer. I please for help.
