Mine are in my back yard, good distance from my house, with a shed between, in an open pen with a roof and I can hear them carrying on when I'm in my living room, which is at the front of my house, above my TV sometimes. I mostly blame my house being old and single pane windows. But they are definitely capable of being obnoxiously noisy in my opinion.
Don't really have anything helpful to say, but I get it lol.
I'm actually getting rid of all of my coturnix and moving to bobwhite and some other new world breeds and their annoying crow or whatever you call it played its part in that decision. Even though I had them for several years, so it obviously didn't bother me too much. It was just one reason in a short list of reasons. On the noise front, I've found the others just blend in more and are less annoying/attention grabbing.
(I didn't see if you said coturnix? realized that before I hit enter)