Microphone problem

Audio devise GF108 High definition audio controller digital stereo (HDMI)
in KDE control center is shown only in Audio playback tab, in Audio recording is not shown. In yast I made microphone maximum, but it doesn’t work. Is there any online sound recording utility to test ?
How to configure microphone?

While using alsa’s arecord - it records sounds from compiuter (if I listen to music, of audiobook) but doesn’t record what is said in microphone.

Problem solved.
I had to install pavucontrol and there choosed real mic instead of front mic

Congratulations on solving this. Thank you for sharing your solution.