Audacity 2.3.2 on Catalina
For Audacity 2.3.2 to properly run on Catalina: Build an AppleScript with the line:
do shell script "/Applications/Audacity.app/Contents/MacOS/Audacity.sh"
Export the script as an application to the Applications folder by the name "AudacityCatalina"
The first time you execute the script you will need to specify "OK" to allow the "AudacityCatalina" script to access the microphone by adding permissions to the Security Preferences.
After that I don't believe you'll need to repeat the Security permissions setup - merely use the script to initiate the project. Executing Audacity under the Terminal and responding "OK" the first time also works but the Terminal remains open after you have completed and closed the Audacity project.
Hopefully, the Audacity project will determine how to properly correct the problem; but this is a secondary "work-around" in the interim . . .
[Re-Titled by Moderator]
MacBook Pro Retina