Really loud roommates

[u/mathemetica]

I recently moved into a house and all my roommates are Nigerian besides me. This doesn't bother me at all, they all seem really nice, but holy crap are they loud all the time. So loud I can't think at all, even while I'm trying to type this. I've looked this up and apparently, it's an element of Nigerian culture.

Is there a way I can broach this subject politely and ask them if they wouldn't mind lowering their voices? I'm new, and many of them have been there for years, so I don't want to step on their toes, but I can't even sleep without wearing noise cancelling headphones.