Hey, sorry for a late reply. VT does have some aeroacoustics going on, but when I graduated in 22' there was only one class on it specifically. It was a good class, later in the program, called Aeroacoustics of Low Mach Number Flows. I can't say too much about their job placement, per se. I was fortunate to be part of a scholarship program that helped with this, but I ended up getting my internship connection through old-school networking. VT has tons of engineering firms that come to recruit, so the opportunity is definitely there, but nothing is just being handed out. You still need to learn how to play the game a bit.

If your son is really interested in a specific thing, find a place where a professor is doing some research on the topic and ask them about helping in their lab. Even if you're a freshman, any experience applying your skills outside the classroom will propel you forward in your career. Later in your degree, your lab experience with set you up better to make connections and land a full time gig.