The sound is of an lg french-door refrigerator that just had the compressor replaced but had too much freon loaded. The tubing dedicated to the freezer section accumulated frost which internal fan blades were rubbing against. Later, a savvy technician released some measure of freon and the sound went away. So the sound is now only a memory. No effects or alteration has been applied. The sound was recorded using 'voice record pro' by dayana networks ltd using an iphone 11, ios 15. 6.
Author: Doubledog