Hi,
I had the exact same issue with Cubase 10.5 and I found a solution.
You can try the following that worked for me, but it’s at your own risk.
Firstly you need to disable temporarily SIP (System Integrity Protection) in order to proceed to the next steps.
Reboot your Mac and hold Command+R on startup. This will bring up the Recovery Mode.
On top of the screen, open Utility->Terminal and type:
csrutil disable
Enter.
Reboot.
Go to ~/Library/Preferences, scroll down and find the com.steinberg.cubaseXX.plist of your Cubase version. You gonna need that name (without .plist) later in Terminal.
If you can’t find it, type in Terminal the following:
mdls -name kMDItemCFBundleIdentifier -r
from the Applications folder drag Cubase app inside Terminal.
You should now have something like this:
mdls -name kMDItemCFBundleIdentifier -r /Applications/Cubase\ 11.app
Hit enter twice.
This will show you a Cubase ID which should look like “com.steinberg.cubaseXXvX” .
Select and copy it, you’ll use it next.
To manually give permission for Cubase to access the microphone,
Type in Terminal (where “com.steinberg.cubase10v5” replace with yours):
sudo sqlite3 ~/Library/Application\ Support/com.apple.TCC/TCC.db "INSERT or REPLACE INTO access VALUES('kTCCServiceMicrophone','com.steinberg.cubase10v5',0,1,1,NULL,NULL,NULL,'UNUSED',NULL,0,1551892126);"
Hit Enter.
Now, Cubase should be on the Microphone Security list, check if it is.
To enable again SIP:
Reboot your Mac and hold Command+R on startup for Recovery Mode again.
open Utility->Terminal and type:
csrutil enable
Restart.
Done.
Hope that helped,
Cheers
T.K.