Hello Kanstantsin, you are most kind, and thank you very much indeed. The F-16 is OK now, but
the F-18..... Let me explain you, in the screeenshot I include you see the wav files which I edited in a previous version of DCS, and did the trick. But now I'm lost... And still, It is difficult to me to believe that the noise coming from a ecm, air conditioning, oxigen supply unit etc.. would be so loud as to cover the noise (music) from the mighty F-18 turbines?