my EEG signals is signal with time domain and the magnitude in Voltage. How i want to filter my EEG signals, so that I only have signals with frequency 3Hz-40Hz. My Fs is 128Hz. Anyone can help? I see this in bandpas filter, d = fdesign.bandpass('Fst1,Fp1,Fp2,Fst2,Ast1,Ap,Ast2',1/4,3/8,5/8,6/8,60,1,60); But i dont know how i want to determine my Ast as it is in db.. should i convert my signal to db first?
MATLAB: Filtering EEG signals with bandpass filter
dspDSP System Toolbox
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