If there are two or more soundcards installed, game will try to select the newer and more powerful one.
I think you have two soundcards, in some way, so the problem is that the game selects wrong card (IMO it selects soundcard integrated in motherboard).
Try one of these two ways:
1st - remove the soundcard, you are not using, from the system or turn it off
OR
2nd - open a folder " Data \" in game root, open file "tbm.ini", add to the end the next line:
setf ~cl_force_soundcard 1
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