kazam no sound and no rectangular red border during screencast in ubuntu 20.04
Probable solution to audio problem at #8, #12 of https://bugs.launchpad.net/kazam/+bug/1875530
the fix is to modify this file:
/usr/lib/python3/dist-packages/kazam/pulseaudio/pulseaudio.py
and replace
time.clock()
with
time.perf_counter()
in all 8 places