lowpass/highpass Butterworth digital filter design
lowpass/highpass Chebyshev type 1 filter design
lowpass/highpass Chebyshev type 2 filter design
modified Bessel function of 1st kind and 0th order
periodic comb/notch EQ filter design
second-order parametric EQ filter design
Savitzky-Golay length-N order-d smoother design
filtering with length-N order-d SG smoother
second order section
signal averaging
ECG generator
