No microphone audio -

[Bob Goodwin]

I rarely have computer audio problems, it usually just works. But today 
I need to record voice and it does not do anything, pulse audio shows 
rear microphone plugged in and the level is turned up. aplay produces a 
test sound from the speaker and sound works as expected, just no mic audio.

This a recent Fedora-30 upgrade from F-29. I don't often need the mic so 
I don't know if this is an artifact of an earlier problem. I tried two 
mics, both are old, one is ancient, but I have used them in the past.

Any ideas welcome,  Bob