Can't calibrate Universal Audio apollo sound card

[johnat4mc]

I am trying to set up a home studio and I am having trouble getting a calibration on my Universal Audio Apollo/solo USB interface. I can get a good audio level but when REW does the sweep I always get an error message saying that there is too much variance in levels, that the curve may not be vallid and should not be used for a calibration file. II am using Windows 11 pro, I turned off any sound enhancements in the OS and adjusted the sample rate to 48. I tried right channels, left channels, different cords all to no avail. I would appreciate some feedback and help.

Thanks,

John

 

[John Mulcahy]

That's usually an indication of the input being mixed back to the output, you should be able to fix that in the UAD console, probably need to mute the inputs in the output mixer.