Auto Volume Swell

Silences the attack of your signal and gradually brings it up to volume

Get violin or pedal steel-like swells, reproducing the sound of quickly rolling your guitar's volume knob or engaging a volume pedal

Rise control adjusts the amount of time it takes the input signal to swell from silence to full volume, while Shine (aka Sensitivity) controls how sensitive the pedal is to picking dynamics

https://www.outlawguitareffects.com/pedals/late-riser