Yes but i have never built a digital filter before so i would like to know how we get the transfer function of a low pass filter for example according to the cutoff frequency, the Q factor etc we want.You select a low pass function for one end of the pass band, and a high pass for the other. The low pass rolls off the upper end of the band; the high pass rolls off the lower end. The range of frequencies between the -3 dB points is the passband.
by Jake Hertz
by Aaron Carman
by Aaron Carman