Googling for a spectrum analyzer up to a sampling rate of 192 kHz, I found Daqarta: Data Aquisition and Real-Time Analyses. I didn't see it on diyaudio before? It's going just till 96 kHz. But there is a lot of information on their website: Daqarta v11.0.0, to which I would like to draw your attention.
I didn't try Daqarta myself. Who did?
I didn't try Daqarta myself. Who did?