The Expression (EXP) pedal on the ME-80 can control not only Volume level, but also various effects. Here's how to activate and select a desired Pedal effect for a Patch.
1. Place the ME-80 on a hard floor surface.
2. Move the EXP pedal all the way toe-forward until it stops, and then give it a strong press. The PEDAL FX LED will light. (Note: It may take a good amount of pressure to activate the Pedal FX.)
3. Turn the PEDAL FX knob to choose the desired effect.
WAH - Creates a WAH effect.
VOICE - An effect that simulates the sound of a human voice
+1 OCT - Varies the pitch from the original sound to one octave up.
+2 OCT - Varies the pitch from the original sound to two octaves up.
-1 OCT - Varies the pitch of the original sound to one octave lower.
FREEZE - Sustains the tone of the guitar.
OSC DELAY - Creates an oscillating Delay effect.
OD/DS - Controls the drive of the selected OD/DS effect.
MOD RATE - Controls the modulation rate of a selected effect within the MOD section.
DELAY LEVEL - Controls the Delay effect level.
4. Once you have chosen an effect, you can write (store) the settings into a User patch location by pressing the WRITE button.