picotts text-to-speech platform uses offline pico Text-to-Speech engine
to read a text with natural sounding voices. This requires to install the pico
tts library on the system, typically on debian just do
sudo apt-get install
libttspico-utils. On some Raspbian release, this package is missing but you
can just copy the arm deb package from debian.
||The language to use. Supported languages are