Topic summary
Phasing
Extracted from the Wikipedia article Phaser (effect).
Usage
The term was often used to refer to the original tape flanging effect heard on many psychedelic records of the late 1960s, notably "Itchycoo Park" (1967) by the Small Faces. The Eventide Instant Phaser from 1971 was one of the first studio devices to emulate the tape flanging effect (with all-pass filters instead of delay, thus being one of the first to distinguish phasing from flanging). It was widely employed in the studio and in live settings by artists such as Led Zeppelin and Todd Rundgren. Phasing is a popular effect for electric guitar. In 1968, Shin-ei's Uni-Vibe effects pedal, designed by audio engineer Fumio Mieda, incorporated phase shift, soon becoming favorite effects of guitarists such as Jimi Hendrix and Robin Trower.