How do I change sound properties?

I'm aware that the Sound instance has 2 properties called "MaxDistance" which is the max distance you can hear a sound being played and "MinDistance" which is the minimum distance you can hear a sound playing. I tried changing these straight from the Properties but it always resets to 0. If I were to use a script would it be a child of the instance and say

sound = script.Parent
sound.MinDistance = ("whatever I want it to be")