Voice assist driving me crazy!

[kalpana]

This is for Ubuntu Mate 18.04.3...

All of a sudden I am getting voice assist for everything on the screen; menus, programs, files, etc. Also for keyboard input. I did not knowingly do anything to turn this on. Makes it virtually impossible to watch videos etc. or do anything involving audio. I have to keep the volume muted or it just drives me nuts.

I looked in System/Preferences/Personal/Assistive Technologies, and did not see anything applicable - and the assistive tech is not enabled (check box is clear). How can I turn this off?