By default, sounds in Flight Simulator X comes registered by Microsoft at 22,050 kHz using only one channel (mono). Sound Environment X converts all sounds using two channels (stereo) at 44,100 kHz. The result is a more accurate effect for every sound available in Flight Simulator X and Flight Simulator X Acceleration Pack.
Sound Environment improves all type of sounds like engines, precipitation, thunder, airport ambience, winds. Many sounds have been totally reworked, specially engine sounds for planes used by the artificial intelligence to generate traffic in FS airports and skies. Ground vehicle, turboprops, small, medium and large jets have now new and improved effects. Also, all default FSX aircraft have now new and improved engines sounds.
Thunderstorms and precipitation will surprise you with spectacular effect and you will turn head left or right!