[paulguru]

I find out that an high  Playback Quality ( setted by control panel -> audio devices ) cause me headache when i play with race games or i listen engines sounds. ( high freq sounds ) also with low volume and after only 20-30 minutes.
Decreasing it from 24bit 48Khz to 16bit 48Khz my headache improve very much.
 
What can be ?