Okay, I've been having this issue for a while, but never really bothered to do anything about it since I figured it was just to do with the performance of my desktop, but I get this stuttering sound occasionally, mainly during areas of high detail; start/finish straight with grandstands and pitwall etc etc (which is why I believe it's computer performance related, also because it's even more frequent when recording a replay using Fraps). You can hear it best here during the onboard moments:
[
tinyurl.com]
I think it might be similar to this guy's problem, which he said, and someone else said, they found a fix for:
[
www.racesimulations.com]
Thanks for the help