I have AI chatter checked but half of the time I experience default ATC talking to default pilot voices, then the other half of the time I experience RC's ATC voice talking to other plane who reply in RC's voices.Anyone know why?RC V4.3

FS has its own sound settings for various features. Turn down the sound level for ATC in FS9. That will not affect RC.For FSX check out the following FAQ link:http://www.jdtllc.com/FAQ.htm#17