The equalizer makes it possible to increases or decreases certain frequencies, from -15 to 15 dB. The effect is applied after pressing the "Apply" button. Pressing "reset" resets all the buttons to 0 dB (but does not remove the effect on the sound: for that use the "redo" button in the "Edit" menu).

Any change on a stereo sample may be automatically applied on the linked sample if the option is checked in the preferences.