UT2004 game no sound

Params:
Linux solar 3.1.6-gentoo #16 SMP Thu Jan 5 14:49:10 GMT 2012 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ AuthenticAMD GNU/Linux

Problem:
No sound in game Unreal Tournament 2004.

Solution:
UT2004 uses openal lib. So you must have this lib in system.
If you run the game by this binary "Games/ut2004/System/ut2004-bin" (32bit system), 
you must have /usr/lib32/openal.so.
Or if you use binary"Games/ut2004/System/ut2004-bin-linux-amd64" (64bit system),
you must have /usr/lib64/openal.so.
On my Gentoo amd64 it wasn't installed (case second). So just type in console:
> emerge media-libs/openal -av