Flanger / Phaser

A flanger creates a "jet plane" or "spaceship" sound, simulating a studio effect produced by holding the edge of the audio tape reel (the “flange”) to momentarily slow down a recording. Flangers add a variably delayed version of the sound to the original or sound, creating a comb filter effect. Some famous uses of flanger effects include "Walking on the Moon" by The Police and "Barracuda" by Heart.