Install brltty-flite by entering the following commands in the terminal:
sudo apt update sudo apt install brltty-flite
Access software for a blind person - Flite speech driver
BRLTTY is a daemon which provides access to the Linux console (text mode) for a blind person using a braille display. It drives the braille display and provides complete screen review functionality. . This package contains an optional speech driver for the Festival Lite speech synthesis engine.