M-Audio/Fast Track Ultra/8R
The M-Audio Fast Track Ultra 8R is a USB 2.0 multitrack audio interface with 8 analog inputs, 8 analog outputs, and a number of other ports.
The device soft-of-works in Linux without any further tinkering, but functionality is limited. Information about proper configuration is limited, and dated. By default, the audio driver seems to see it as a surround-sound device and cannot be persuaded otherwise. This results in audio with a short-delay echo on output channels 1-4, and apparently mono output on all channels.
- https://www.alsa-project.org/wiki/Matrix:Module-usb-audio - probably has to do with that line which the l3ku post said to comment out
- 2020-08-09 How to fix Ubuntu 18.04/20.04 not recognizing M-Audio Fast Track Pro USB audio interface
- This did not make anything work that wasn't working before, but offers some clues about how to tinker with the system.
- 2013-04-29 M-Audio Fast Track Pro