As a rule, actions focused on making an urbanized area smarter are at the same time actions to improve the quality of life (comfort) of the inhabitants of such an area. This statement also includes - in my opinion - the problem of creating the most appropriate acoustic climate in a smart city, or rather in its components. I am intentionally not talking about noise reduction: being in absolute silence is one of the more sophisticated tortures. The comfortable living space is "acoustically varied": we expect a rather quiet space for rest (sleep) at night, but accept a more noisy dining and entertainment space, of course with restrictions on the night time, ie usually between 10.00 PM and 6.00 AM. However, in publications on acoustic phenomena in public space, I did not find too many studies on Smart City acoustics. Do you know such studies or studies?