Akai MPC Essentials User Manual page 140

Other
Auto Wah
This effect is a low-pass filter modulated by an envelope that yields a classic funky "wah-wah"- like sound.
The envelope is triggered by the incoming signal's amplitude. The amount of the envelope on the cutoff
frequency is user-definable.
Parameter
Dry/Wet
Resonance
Attack
Release
Center
Sensitivity
Value Range
0 (dry) – 100 (wet)
0 – 100
0 – 100
0 – 100
0 – 100
0 – 100
Default Value
100
75
30
30
50
50
140
Q-Link Knob Number
Q13
Q9
Q5
Q1
Q14
Q10