Active filterW
Active filter
Band-pass filterW
Band-pass filter
Band-stop filterW
Band-stop filter
Bridged T delay equaliserW
Bridged T delay equaliser
Butterworth filterW
Butterworth filter
Commensurate line circuitW
Commensurate line circuit
Crystal filterW
Crystal filter
Equalization (audio)W
Equalization (audio)
Filter bankW
Filter bank
Frequency dependent negative resistorW
Frequency dependent negative resistor
Gabor filterW
Gabor filter
Gammatone filterW
Gammatone filter
Gaussian filterW
Gaussian filter
GyratorW
Gyrator
High-pass filterW
High-pass filter
Kalman filterW
Kalman filter
Lattice delay networkW
Lattice delay network
Lattice phase equaliserW
Lattice phase equaliser
Leapfrog filterW
Leapfrog filter
Linkwitz–Riley filterW
Linkwitz–Riley filter
Mechanical filterW
Mechanical filter
MPX filterW
MPX filter
Optimum "L" filterW
Optimum "L" filter
Prototype filterW
Prototype filter
Q factorW
Q factor
Top-hat filterW
Top-hat filter
Waveguide filterW
Waveguide filter
File:Constant k order 2.PNGW
File:Constant k order 2.PNG
File:Constant k order 5.pngW
File:Constant k order 5.png
File:Image filter terms.svgW
File:Image filter terms.svg