Other Issues with the Audio Driver I have only tested it on a PCI AV card. I don't really know how well it works on ISA cards. The driver makes a noticable pop sound through the speakers when loading. I don't know what causes that. The driver does not support full duplex operation.
Full duplex means capturing and playing audio at the same time.
That may cause an incompatibility with some applications. You might hear some slight popping or crackling sounds when playing audio while simultaneously capturing video at high rates. This is a minor hardware bug. Thankfully, it only affects playing, not recording. RealProducer does not work properly with Videum when encoding audio below 8kbps.