macOS Catalina 10.15.2 on my MacBook Pro Mid-2015, 15" with Retina display,
I would like to stop FaceTime from making the sounds from other apps (normally music I am playing) quieter.
I tried this answer to run
printf "p *(char*)(void(*)())AudioDeviceDuck=0xc3\nq" | lldb -n FaceTime
but it hasn't been working since Mojave at least
