Does anyone know a Good real time voice changer for Linux? (Specifically Ubuntu)

I've been looking for a while to try and find a real time voice changer for Linux (Specifically Ubuntu). I usually edit my voice in Audacity when I want to change it but recently I have found myself in the need of a real time voice changer. Any suggestions would be much appreciated!

You can start with the pyvoicechanger python script.

Or you can use sox and piping to achieve a similar result using:

 sox -d -d pitch -700 contrast 100 echo 0.8 0.88 6 0.4 

For full list of sox sound effects: SoX - Sound eXchange Wiki: EFFECTS

You can use lyrebird

It's a simple and powerful voice changer for Linux, written in GTK 3. And it works just by switching it on and off