GSX P3D sound - volume changing

[maca11]

Dear all,
when I run GSX on P3D all seems to work quite well. Only my issue is the sound.
E.g. When my view is inside the cockpit I hear reasonable GSX vehicle sounds outside. However, After cca 3-5 minutes the sounds gets much higher volume and pushes the normal cockpit sound to background. It gets back only when I change the view or click any button in side the cockpit. Then sounds volume gets back.
The same behaviour is if I my view is outside....
Is it normal behaviour or setp-up or bug ?
many thanks !
JM

[virtuali]

Some sounds (like engine sounds, even for GSX vehicles) are handled by FSX, so they are outside our control.

[maca11]

OK, I see. So changes in volume of different sounds is most probably on P3D ?
thanks
JM

[virtuali]

OK, I see. So changes in volume of different sounds is most probably on P3D ?

P3D seems to handle vehicle sounds differently than FSX.