If u have problems with sound in Drakensang try following:
Only movie sounds
If u have only sound in the intro movies and no sound in the game, start the credits (german: Mitwirkende) movie from the main menu and go back with Esc.
No sound in the whole game:
try oss (u can change the settings in winecfg) in combination with alsaoss or padsp (padsp only with pulseaudio).