Not a sound engineer but I did stay at a holiday Inn express at least once...
I recently learned about a new thing called Sonopan that goes on the studs, then drywall over (in their examples they show resilient channel involved but it'll work straight to stud, drywall on top apparently).
this...
If you race vintage porsche up there you might know my uncle up in Connecticut, he does a bit of that. Now that would be a small world (Internet?). lol