I would also re-check the install settings, perhaps even reinstalling the game completely, and see if the problem is still there. Also, is there an option in-game to perhaps turn the comm audio off that might have accidently been pressed?
I'm not sure what "2 cd wc2 privateer" means but The Darkening has three CDs. If you decide to try reinstalling the game, please double check that what you choose for sound settings are the same as what dosbox is set to. Dosbox defaults to IRQ 7 instead of 5 unless you change it, for example.