> > I checked, and it doesn't appear on the Delta 1010. Maybe the > > interface is specific to your card, Ross. > > Whoa, that's very bizarre. I have a Delta 44 - so I'd assume > anything I get, you should. What version of envy24control are you > using? The one from the alsa-tools 0.93 tarball. Although they are in the same product range, they are different PCI card designs, aren't they? My understanding was that the Delta 44 and 66 did A/D conversion on the PCI card, so the external box just converts from 1/4" jack analogue input to computer-socket-type analogue output. The Delta 1010 is supposed to do AD conversion inside the (powered) breakout box, so the PCI card should be digital input only. Cheers Daniel