I am experiencing the same slow controller voice performance as others during any communications that require the stringing of multiple wav files.I noticed that if, just after I hit 1 to begin a controller communication sequence, I hit the ALT key and bring up an MSFS dropdown menu, the clearance readouts continue and are very smooth and flow very well. Of course I am not able to interface with FS while the dropdown is there.I thought others might try this and that maybe this would give John, Rick, Scott whoever more info on where the issue lies.Thanks.

You can help improve wav file playing by switching to a maximised forward view by pressing W. As the processor doesn't need to keep redrawing the panel it has more time to process the wav files. I accept it's not practical to fly without the panel visible but if you can program a button to W it should be reasonably easy to toggle it on/off.If you have dual-displays running on a single PC switching off any undocked windows also helps especially with "heavy" panels such as the PIC767.Unfortunately the ATIS broadcasts will be the slowest as they comprise many separate wav files but I've found on a Athlon 2000XP, 512Mb PC2100 RAM with a GeForce4 Ti4600 feeding two 19" screens the playing of controller and pilot wavs is pretty good. Not as fluent as Microsoft's but certainly realistic enough.Hope that helps!Cheers,