At long last, OS X builds that use OpenAL Soft!Download (OS X 10.7 and up): http://www.mediafire.com/download/bf3dyldnhms7hw5/FS2_Open_OALSoft.zip
No extra libraries needed, just use the builds as they are.NOTE:
If the game is really slow/choppy (low frame rate), it’s because of the new graphics. Go to the launcher’s Advanced Settings tab and under the “Graphics” section check “Disable Deferred Lighting” and “Disable Shadows”.
Special thanks to swashmebuckle, Darklord42, and chief1983 for their help with testing.