is an effect that generates a swirling, ghostly sound by adding a slightly delayed copy of the signal in which the copy's delay time fluctuates.
a delay-based effect that originated with tape recorders. The tape was slowed down by pressing the fingers against the reel, and the sound produced was mixed together with the normal signal from a second tape. The flanging sound is created electronically by playing back a delayed signal (of up to 20 milliseconds) with a controlled pitch modulation, against the original track. Most modern day effects pedals can produce this effect.
An audio effect created by varying a slight delay between two identical audio signals that results in a sound similar to a jet airplane taking off or landing.