TC Electronic Alter Ego Delay Manual page 11

Delay effects and volume pedals: choosing the right setup
"I want my delays to trail out when I use my volume pedal!"
Awesome! In that case, place your volume pedal before Alter Ego Delay so Alter Ego Delay can work its magic.
Looper Reverb Modulation Drive
Pedal Pedals Pedals Pedals
Input
Combo
▲
Your volume pedal goes somewhere over here if you want
your delays to trail out when lowering the volume.
Alter Ego Delay English Manual Version 1.0 9