Yipee, now my microphone is working. I was able to hear the sound but if I record my own voice, it doesn’t play. When I am on skype call, I can hear the other person but they can’t hear me
Tried all the audio options (skype), but no use. Even changed some options from alsamixer (terminal). Tried to play with the kmixer, like boost, capture, pcm, still it didn’t work.
Then just tried with digital & input source & yes it worked. Changed the first input source to front mic & second input source to mic. It worked fine 
For those who wants to configure mic in Kubuntu:
Boost level should be “0“, capture 1 & capture 2 should be “checked“, digital to “top most level“, first input source to “front mic“, second input source to “mic“
Try this & I am sure it will work 
Tags: configure mic, kubuntu, skype
