Just confirm for me that there isn't actually a polite way to tell the person you're talking to / socializing with to turn down the goddamned decibels. "Would you mind keeping it down" is as about as polite as I can muster when my eardrums are going to bleed FROM THE UNNECESSARY VOLUME. At some point my ears actually stop processing the sounds they're making and I actually cannot understand much of what they say.
I know people don't do it out of malice. Please don't tell me I'm horrible.