svox (small footprint text-to-speech engine) The SVOX Pico engine is a software speech synthesizer for German, English (GB and US), Spanish, French and Italian. SVOX produces a clear and distinct speech output made possible by the use of Hidden Markov Model (HMM) algorithms. The package includes the pico2wave utility, and everything else from the Debian packages libttspico-data, libttspico-dev, libttspico-utils, and libttspico0.