[linux-audio-user] Mixer settings

Clemens Ladisch clemens at ladisch.de
Wed Dec 1 04:09:02 EST 2004

Christoph Eckert wrote:
> > Each card is different.
> I'd like to mix my Terratec Aureon USB.

USB devices have descriptors that describe all mixer controls and
their routing.  You can find this information in the output of "lsusb
-v" if you know what to look for.

> BTW: I also googled to find a nice image showing the signal
> flow of AC97 cards, but I haven't been successful.

What all AC'97 codecs have in common is that they don't completely
conform to the standard.  The datasheets (if they exist) usually
contain such a diagram.


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