I have been working at improving the AI traffic in my sim, and I am also addressing the sound that the AI traffic makes.  I have made the basic modifications that Mr. Gridley at FREEFLOWNewEngland suggests...and it is great.  

But I STILL want to increase the volume of the AI aircraft.  They do NOT have the impact of the real thing at all when you are only a few hundred feet of say a 747.  It SEEMS that it should be a snap....... just load the sound wav file into the windows sound recorder and hit the "increase volume 25%" button.

HOWEVER........ when those particular wav files are loaded into Sound Recorder... the "increase volume" button is greyed out.

SO how do I do this ?

best,

.....................john