I am trying out microphone selection in the software "jitsi 2.2.4603.9615" on my
openSUSE system. I have chosen the audio system "PortAudio" in the application
1. I can also choose an entry from the drop-down list "Microphone" in the
corresponding dialogue. There is a bar below it that seems to display the
current sound volume if I make some noise.
But I have got doubts about its correctness. Why does this blue bar still
quiver after I switched the phone off from my headset intentionally?
2. Do I need to adjust the input volume (the "boost") eventually?
Does Jitsi need any extensions there like the way that fine-tuning can be
performed by the application "Audacity"?