I live in a condo that has kinda confusing guidelines about replacing the carpetting with laminate, hardwood, tile, marble, etc.  Basically, we have to match the sound-dampening level of the existing carpeting.  And, of course, we don't know what that is.

I understand, though, that there are sound-dampening underlays for hard flooring?  Does anyone know where I can get more information about this?  Or can anyone tell me whether these underlays actually do work well?

Thank you!