Filterbank3

% Example for 3 bands: Low (0-300 Hz), Mid (300-3000 Hz), High (3k+ Hz) edges = [0, 300, 3000, fs/2];

from scipy.signal import butter, sosfilt def design_band(lowcut, highcut, fs, order=4): nyq = 0.5 * fs low = lowcut / nyq high = highcut / nyq sos = butter(order, [low, high], btype='band', output='sos') return sos filterbank3