Update README.md

README.md

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 # UT99-OpenAL
-Guide how to enable 3D spatial audio for Unreal Tournament 1999.
+Guide how to enable 3D spatial audio for Unreal Tournament 1999 aka UT99.
 
-Intended to be used with **headphones** (stereo).  
+Intended to be used with **headphones** (stereo). Works with any sound card.  
 The difference should be clearly noticeable as sound becomes out-of-head.
 
 Non-native to game "solutions" to create 3D spatial audio for headphones is done using only 5.1/7.1 channel output.  
-Having 3D spatial sound directly from audio engine is more accurate.
+Having 3D spatial sound directly from audio engine is more accurate.  
+Patched UT99 supports OpenAL Soft which allows to enable 3D spatial audio with custom HRTF.
 
 Instructions and a way to find best sounding HRTF are included in 'Readme.txt' inside release archive.