The sounds that the engines in the game currently make are sub-optimal, white noise is not very interesting to listen to and I feel that you would get a much better feeling if you could listen to something more impressive as the rocket launches (I want to feel like I am actually piloting a 100 ton rocket, not an out of tune radio). The smaller engines that make a different noise are worse in my opinion, if is not only underwhelming in that it sounds like the rocket is scraping along the side of a building, but it is also an annoying noise to listen to (like scraping something along the side of a building), it makes my ears sad.