> There's definitely not cars moving 40+ mph without making a lot of tire noise.
Based on what? A car with low resistance tires on concrete isn't going to make a lot of tire noise even at fairly high speeds.
> But seriously, can you find a single study saying wind is a dominant factor in road noise?
The one lumping tire noise and aerodynamic noise together is obviously contemplating that aerodynamic noise is a thing.
> Because, that's the sound it makes.
Tires make a rumbly sound, when you can hear them, as for example with the types of tires that make more tire noise.
> The fact that we're trying to figure out if wind or tires is the source of the noise that we both acknowledge is quite noticeable makes no difference except to support my actual point, that cars are loud.
There is a difference between something not being absolutely perfectly silent and something emitting a loud noise. Road noise for most modern cars at city speeds isn't loud. Exhaust noise for cars with negligently or intentionally defective mufflers is loud.
> Road noise for most modern cars at city speeds isn't loud.
If you can hear it and you're not next to the road, that's too loud. It's noise pollution. You can personally draw an arbitrary line anywhere you want to determine what counts as "loud", but the actual phenomenon is that cars make an amount of noise that is detrimental to our health, sanity, and wildlife.
Based on what? A car with low resistance tires on concrete isn't going to make a lot of tire noise even at fairly high speeds.
> But seriously, can you find a single study saying wind is a dominant factor in road noise?
The one lumping tire noise and aerodynamic noise together is obviously contemplating that aerodynamic noise is a thing.
> Because, that's the sound it makes.
Tires make a rumbly sound, when you can hear them, as for example with the types of tires that make more tire noise.
> The fact that we're trying to figure out if wind or tires is the source of the noise that we both acknowledge is quite noticeable makes no difference except to support my actual point, that cars are loud.
There is a difference between something not being absolutely perfectly silent and something emitting a loud noise. Road noise for most modern cars at city speeds isn't loud. Exhaust noise for cars with negligently or intentionally defective mufflers is loud.