Kazam microphone Unknown
Just posting the fix here to avoid confusion in the thread.
FIX : Update the function "time.clock()" in pulseaudio.py file with "time.perf_counter()"
File location : /usr/lib/python3/dist-packages/kazam/pulseaudio/pulseaudio.py
'time.clock()' is deprecated from Python V3.3 and removed from Python v3.8
Documentaion: : https://docs.python.org/3.7/library/time.html#time.clock
If you've just upgraded to ubuntu 20.04, see solution at #8, #12 of https://bugs.launchpad.net/kazam/+bug/1875530