The electronic phasing effect is created by splitting an audio signal into two paths. One path treats the signal with an all-pass filter, which preserves the amplitude of the original signal and alters the phase. The amount of change in phase depends on the frequency. When signals from the two paths are mixed, the frequencies that are out of phase will cancel each other out, creating the phaser's characteristic notches.
Wet/dry: regulates the mixing of the original and the mixed sign.
Speed: Changes the speed of the phase-frequency shift. It only works if the auto-manual led is off.
Auto-manual led: In auto mode the effect running in sync with tempo of the BPM
Gain: Changes the intensity of phase-frequency shift.
Feedback: We can feedback the changed sign into the effect, where it goes through further sign changes. Using it won’t cause a big change, so it differs when is the difference is more prominent.