The 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.

Configuration Options

Variable Default Value Description
voice en-US The language to use. Supported languages are en-US, en-GB, de-DE, es-ES, fr-FR, and it-IT.