This may be OFN, but I think I have found a bug when using vent and wow with the new patch. If you launch wow and log in and THEN launch vent your quality sounds crappy. However if you launch vent before you launch wow its fine. Ive tested it and it seems to be true. So if people complain about your vent quality you just fix it by closing wow and vent and reloading, in the correct order.