My Appleyards don't make much noise, but when the ducks give their gather-the-clan call, they shake the rafters.
Pekins are supposed to be noisy. Mine don't make any noise at all unless I pick them up. When they call, they aren't as loud as the Appleyards.
I've got Swedish from 2 different sources. The hatchery ducks are non-stop noise and have a loud call. They never shut up. The other batch murmurs, but quietly, and only call when the flock gets separated.
If you must have quiet ducks, either get Muscovy or else get all males of the Mallard derived breeds. It's the females who are loud.