Not sure about noise, but this made me think of something.... The first two bikes I did serious multi-state touring on were naked street bikes (relatively same protection as an ADV bike, really). I disliked the look of fairings and always blew them off strictly on form. I made heavy use of heated grips, heated gear, and lots of layers when I was traveling through less than stellar weather. I can recall many days where I had heated gear cranked up and was still shaking cold when things dipped down into the high 30s or wet 40s. As soon as I moved to my first fully faired sport touring bike, I found my ability to keep warm was much less difficult. Whereas before I needed heated gear and layers and was often still shaking when I arrived at my destination. I can now get away with just layers and mild discomfort on a fully faired bike. And this is all due to airflow management. I'll never go back to touring on a naked bike (if I can help it) except for summer months.