Clemens, > Each card is different. > > Onboard chips are supposed to be AC'97 compatible, so you > can look into the AC'97 specification to find out what your > chip doesn't work like. > > If you have luck, there is a datasheet for your codec chip. thanks for your hint. I'd like to mix my Terratec Aureon USB. Meanwhile I noticed that the GUI of qamix can be configured using xml files, so I'll try it out. Currently, it only shows one control, that's a bit less ;-) . I expect to be successful, so qamix will give me a better control over my card. BTW: I also googled to find a nice image showing the signal flow of AC97 cards, but I haven't been successful. But the AC97 is not that important at the moment :) . Best regards ce