PicoSpeaker is a flexible interface to SVox Pico. It is written in Python and uses Sox for speech output. Speech rate, pitch, volume and language are all controllable, and it is possible to save the output to any file type supported by Sox. For more information about how it works and what you need to make it run, see the Readme page.
PicoSpeaker is unlicensed code released into the public domain for the good of human kind and the computers that we rely on. See the Unlicense page for details.