Topic: UFX+/UCX/UCX II - sampling rates in CC mode
For a specific application I've been trying to run the UFX+ in USB CC mode in 32kHz using Linux/Jack. However the device always jumps to 44.1 kHz upon starting jack. After a bit of digging around and I figured out the following sampling rates are supported in CC mode (as reported by ALSA in /proc/asound/cardX/stream0):
Rates: 44100, 48000, 88200, 96000, 176400, 192000
The same holds for the UCX II, while UCX can do following rates: 32000, 44100, 48000, 96000. This is under Ubuntu 20.4.1 with kernel 5.15.0 (a bit old but I didn't get around to testing this with a newer one yet).
- Is this a limitation of the RME devices in CC mode or a limitation/bug in ALSA?
- If it's a device limitation, is it documented anywhere? Couldn't find anything
- Is there any possible solution to this?