Yes, but if that was something that could be fixed just by some simple EQ (of the type that people are suggesting having ingame) we would have already done it to the default sounds ourselves!
I’d honestly say at this point I’ve spent over 100 hours tweaking and reworking engine sounds in a pro sound package with a lot of tools at my disposal, so I can’t imagine the kind of simple controls we could have in game would do anything of use. Hell, even with the excellent tools we have, most of the EQ tweaks end up making things worse, and the ones that do work usually require a complicated set of envelopes controlling gain and frequency across the rev range.
I know what you guys are getting at here, but please believe me when I say it wouldn’t produce results you’re happy with, a large percentage of people would not even touch it, and it’d be a waste of time we could otherwise spend on things like finishing the tycoon game, adding more engines etc.