it has been claimed that george martin's pseudoscientific explanation of adt ("we take the original image and we split it through a double-bifurcated sploshing flange") given to lennon originated the phrase flanging in recording, as lennon would refer to adt as "ken's flanger", although other sources claim the term originated from pressing a finger on the tape recorder's tape supply reel (the flange) to make small adjustments to the phase of the copy relative to the original.