Pigtronix Infinity Looper - Manual (Page 37)

5. Expression Pedal Functions
An industry standard low-impedance TRS expression pedal can be
connected to the Infinity using a TRS (tip-ring-sleeve) cable, to control
any one of the following (but only one at a time): Loop Volume, Loop
Aging, or Varispeed.
Moving the expression pedal towards the heel will turn the loop audio
down (for both loops) from the level set by the individual loop volume
knobs.
5.1 Loop Volume
This is the default function of the Expression pedal while not in the
Varispeed Remote Control Menu.This mapping controls the audio out-
put level of both loops simultaneously.
Moving the expression pedal towards the heel will turn the loop audio
down (for both loops) from the level set by the individual loop volume
knobs.
5.2 Loop Aging
For basic Loop Aging functionality see page 26.
This is a non-default function of the Expression pedal. When using
expression pedal feedback control, toe maps to “no feedback decay”
and the numbers go down from 9 to 0 as you move towards the heel.
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