Hushboard 
Mute your mic while you’re typing, for Ubuntu and other Linux OSes
About Hushboard
Never listen to the thundering sounds of someone typing on a video call ever again!
Well, nobody who talks to you will have to listen to it. If you don’t want to listen to it either, encourage your friends and colleagues to install Hushboard. While you’re typing, your mic is muted. When you stop, it unmutes again.
That’s it.
Hushboard. Sssshhhh.
Downloads
Development by Stuart Langridge. Packaging and assistance by Alan Pope. Arch by Jeffrey Bouter. Source on Github.