Hearing Noise

So I noticed that Elves and Dwarves get a bonus to hear Noise (14+) versus human 18+. This is a free bonus and isn't accounted for in race building. Is this a free thing for all non-humans, like Nobirins and Thrassians?

I like to think of it as humans being deficient (see also: https://www.youtube.com/watch?v=yWkbtpBGqOc )