I have already used recordmydesktop, xvidcap and kazam. My sound working fine with other audio or videos.

xvidcap doesn't record sound at all. I have tried many ways. If I try as: 'padsp xvidcap', it also gives error, like: /dev/dsp cannot found or missing. I have changed it to /dev/snd. Still no effect.

Even I can record sound through gnome-sound-recorder - after pressing record button, I open pavucontrol. Then from Recording tab, I choose 'Monitor of Analog Stereo'.

But if I run xvidcap, I don't get that option in pavucontrol.

kazam works a bit slow. It records at the beginning of the captured video. But for unknown reason, it eventually the sounds just go off. Also the video is not smooth as xvidcap. Though Kazam output as H64/MP4.

Record my Desktop also doesn't give sound.

Can you guys please help me, either - how to get sound with xvidcap or how kazam could be record nicely. I am looking something Camtasia, as used for Windows.

Thanks in advance.

Raihan