http://bugs.winehq.org/show_bug.cgi?id=14717
--- Comment #87 from Raymond superquad.vortex2@gmail.com 2010-12-27 19:04:30 CST --- (In reply to comment #84)
After experimenting with sb16 and ac97 in kvm, I must conclude that their Windows drivers use exactly the same resampler (I don't know if it is something default or just a coincidence), and it is not a zero-order-hold.
it is meaningless to test those emulated sound card sb16 and ac97 in kvm or virtualbox.
you need to test your real sound card in xp
(e.g. SB Live!5.1 if you want to test foo_out_ks )