[twobjshelbys]

For all types of noise enforcement it is provable that without a properly calibrated sound pressure meter and the measurement taken at the specified distance that any sound violation is a matter of personal judgement - just like a cop saying you were speeding without radar proof. There are by far more noise complaints about loud music and parties than cars. The most they do is knock on the door and ask them to settle it down. That is not to say that technology hasn't created the equivalent of a self-calibrating device, but I've not heard of any such.

(I went through this when I was on the town board in Colorado when people were wanting noise ordinances and the sheriff outlined the issues with enforcement. We didn't make such an ordinance.)