I find that installing an application (which looks very much like bloatware) twiddling with all audio output to be a very much less than perfect solution. I never had this issue with any application on any platform before. As an intermediate solution disabling the "realistic sound effect" seems to be preferrable.
Other than that, it might not be a volume issue but a gain issue after all (as has been mentioned before a couple of times), which might be the reason why software solutions aren't working for some people. Which is of course naive mumbo-jumbo on my part.