How to change video voices for german/italian/french/spanish language:

You have to edit file "environment.cfg" and add:
"BINK_SOUNDTRACK=2" for french language
"BINK_SOUNDTRACK=3" for german language
"BINK_SOUNDTRACK=4" for italian language
"BINK_SOUNDTRACK=5" for spanish language
Example:
VID_RENDER=Direct3D8
XR_SURFOPTIONS=16
VP_FOV=95.000000
VP_FRONTPLANE=0.500000
VP_BACKPLANE=5000.000000
XR_FLARES=0
XR_DLIGHT=1
XR_FASTLIGHT=0
XR_WALLMARKS=1
XR_SHADOWDECALS=1
XR_LODOFFSET=0.000000
XR_LODSCALEBIAS=0.000000
XR_STENCILSHADOWS=0
XR_PORTALTEXTURESIZE=256
XR_SHADOWDECALTEXTURESIZE=256
VID_MODE=1920 1080 32 60
BINK_SOUNDTRACK=2
XR_SPLINETESSLEVEL=1.000000
R_PICMIP0=0
R_PICMIP2=0
R_PICMIP3=0
R_PICMIP4=0
R_PICMIP5=0
R_PICMIP6=0
R_PICMIP7=0
R_PICMIP1=0
R_ANISOTROPY=1.000000
SND_USE3D=1

If this has helped you, please leave me a positive feedback! thanks!