All the time I play/test AH2 on my machine the sounds come through all crackly and distorted.
Specs:
Win 2000 with SP4
SB Audigy 1 with the latest drivers
384 mb of 133 SDRAM
XFX Geforce 4 4200 Ti Turbo
DX 9.0
Hardware sound acceleration in dxdiag is set at standard (1 notch from the right.)
Will get a small sound recording tomorrow if needed.