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So it's a driver error? should I contact Marian? Shouldn't it work with umpx?
If the card is displayed in the list of sound cards in MicroMPX, then the driver reported that the card is capable of running at 192 kHz. MicroMPX always opens the sound card in 192 kHz mode, which should either fail (if for some reason the card cannot run at 192 kHz even though it reported that it could), or succeed and run at 192 kHz. I have never seen this fail with Marian cards, except when in the driver settings, 192 kHz mode is disabled.
To check that, click on the Marian icon in the system tray and open Settings. In Operating mode select "Upto 192 kHz".
A succesful open and then running at 48 kHz makes no sense as far as our software is concerned, so that has to be a driver issue.
Marian sent me this email
Currently, I can not see where this problem leads to the Trace Alpha. The error messages from the log of umpx do not necessarily hint to the driver to be the problem.
On the screenshot I see that the Trace Alpha clock is at 48kHz. Again: in the case of ASIO, these settings are governed by the ASIO application (umpx in this case). The settings in the windows control panel DO NOT apply! Consequently, 192kHz has either not been set in umpx or the communication between umpx and the asio driver of the Trace Alpha is not in accordance to the asio standard.
I strongly suppose, that the device that umpx is trying to open with ASIO is already in use somewhere else... e.g. if it is selected as standard playback/recording device in the windows control panel.
Mit freundlichen Grüßen | With best regards