Using Mixxx with more than two channels
I'm using a Macbook 2,1 with an Ubuntu variant called Crunchbang, which uses straight ALSA without pulse, for what it's worth.
I bought a Berhinger UCA202 usb audio interface in order to preview tracks to beat match. The card was recognized and works automagically, but I have a snag when I try and set up the channels. If I use channels 1-2 for the output of the UCA202 to the speakers and then use channels 3-4 for the internal sound card to my headphones, I get terrible audio quality with lots of pops, skipping, and the program becomes unstable.
However, if I use channels 1-2 for both, the problem goes away immediately, but it becomes more difficult to cue the tracks because I'm listening to the full mix through my headphones.
Does this have anything to do with latency? Or the limitations of my internal sound card?
Any help would be greatly appreciated.
Macbook 2,1 2.16 Core 2 Duo / 2Gb Ram / 120Gb HDD: Ubuntu Studio 9.04 64 Bit/ Mac OS X 10.4.11
Registered Linux User # 449355 / Registered Ubuntu User # 16921