I've got two headsets and one standalone mic and none of them will work reliably with AH2 Voice radio. I have tried varying every setting in game sounds and voice (including turning Wave In on and off), playing with the input levels, speaking more loudly or quietly, and moving the mic(s) around, and *nothing* gets it to work even halfway reliably. I'll get a setting that is at least halfway intelligible, then I'll move the headset slightly and it goes to crap and and nothing I can do gets it working again that night.
The frustrating thing about this is that all three mics are very easy to set up so they record a perfect, crystal-clear .wav in any application but AH, withn or without background noise. It's only running them through AH that turns my voice into rasping croaks or a faint hiss. And listening to other players I can tell I'm far from the only one having this problem. Offhand I'd say maybe one in three of the people bothering to use vox come through clearly enough to understand without difficulty, and another third enough to be even slightly intelligible.
What is with the Voice function? Does AH2 just set an additional noise filter that's way too high? It shouldn't be this difficult to do something that is so easy outside the game!