How to record screen video with sound in Ubuntu?

Question

ubuntu

You need to record a webinar, but all the programs that I used write sound from a microphone that captures what the speakers give out, but it is necessary that the sound is not from the microphone, but from the video file being watched .. in my case, from the stream

Answer 1

sudo add-apt-repository ppa:maarten-baert/simplescreenrecorder
sudo apt-get update
sudo apt-get install simplescreenrecorder
Simplescreenrecorder

Answer 2

gtk-recordmydesktop
also
recordMyDesktop offers also the ability to record
audio
through ALSA, OSS or the JACK
audio server

Answer 3

Simplescreenrecorder does exactly what I described and does not do what I need .. that is, the sound recording goes through the microphone

Answer 4

still haven't found a solution? and that is also necessary.

Answer 5

vokoscreen