If you can’t tell, the lawyers are in control now. That is rarely the right path to end up with common sense solutions:

VCPORA, New Orleans city attorney spar over Bourbon Street noise ordinance | NOLA.com.

And thanks to The Lens for adding this link to more information on decibel levels and to an explanation at the TeePee as to how noise does not increase linearly but exponentially. “For instance, sound at 80 decibels is actually twice as loud as those at 70 decibels, just as 60 decibels would be half as loud as 70, and 90 decibels would be four times as loud as 70.”
Link to sound levels