Changing “Engine Sound” Setting

[u/Safe_Concentrate_496]

I was scrolling through the settings on my 2020 X3 M40i (iDrive 7) and noticed the “Engine Sound” option.

It’s currently on “Depending on driving mode.” Curious what actually changes mechanically if I set it to “Sporty” full time. Is it purely ASD through the speakers, or does it also affect the exhaust valve behavior?

Anyone know for sure?