Utiliza Python 2.7. La referenca para PySide está aquí. Y ejemplos acá.

Bajo windows instala Anaconda y PySide: pip install PySide

• PySide
• matplotlib

• Lowpass
• Highpass
• Bandpass
• Bandstop

Description of a Linear time-invariant system, described by it's zeros, poles and gain. Gain is zero for all filters 20*log(1) = 0. A resistance of 1 Ohm is considered for all filters.

scipy.signal.lti(zeros, poles, gain)

(R/L)/(S+(R/L))

zeros = [] poles = [-1/L] gain = 1

S/(S+(1/CR))

zeros = [0] poles = [-1/C] gain = 1

((R/L)S)/(S**2+S(R/L)+(1/LC))

zeros = [0] poles = [((-1/L)-(1/L)*(C-4L))/2,((-1/L)+(1/L)*(C-4L))/2] gain = 1

((s**2)+(1/LC))/(S**2+S(R/L)+(1/LC))

zeros = [(-1/LC)**(1/2),-(-1/LC)**(1/2)] poles = [((-1/L)-(1/L)*(C-4L))/2,((-1/L)+(1/L)*(C-4L))/2] gain = 1