Comment 7 for bug 1875530

The code in pulseaudio.py call time.clock() func. But it deprecated from Python v3.3 - https://docs.python.org/3.7/library/time.html#time.clock

All time.clock() calls must be replaced with time.perf_counter() - https://docs.python.org/3.7/library/time.html#time.perf_counter