Apparently so :-) I have ALSA, Jack, and Pulse working together (in this structure). For some reason the Pulse driver didn't work, but the Jack driver is working delightfully.Have been using Audacity 1.3.10-beta-unicode, on Debian Testing 64, and I must say, major congrats. I am using it with the Jack driver, since I keep Jack on all the time; very very good!!! J.E.B.You got it (and Portaudio) to work with Jack? I had to use weird workarounds involving an external USB card to do that...