# Phaser

Phaser window

The Phaser effect has a selectable number of Notches (frequency regions that are attenuated), which can be moved slowly through the frequency spectrum. Traditional stomp-box phasers used with electric guitars typically have two notches, while more expensive studio devices have a higher number of notches. The Phaser effect is particularly well suited for electric piano and electric guitar.

Frequency controls the tonal character of the effect.
Range determines how far the notches move. High values can lead to noticeable pitch shifts.
Speed controls how fast the notches move.
Depth controls how deep the notches are (the deeper the notches, the more intense the effect).
The Stereo button can be used to create a stereo effect by moving the left and right channel notches in opposite directions.