Sounds like a high efficiency frigidaire! What make is it and how old? If it is a frigidaire, they make those sounds when the compressor begins pumping. It says in the owners manual that those sounds are normal.
Temperature in the home has nothing to do with the sounds mine makes! (Apparent Cause - Dumb Ass Engineering!)
Had I known that before buying it, it would never be in my kitchen making those ridiculous noises. - udarrell