A lightweight alternative to Festival.
For Debian users: apt-cache show flite , apt-get install flite
Flite: a small, fast run time synthesis engine
Flite (festival-lite) is a small, fast run-time synthesis engine developed at CMU and primarily designed for small embedded machines and/or large servers. Flite is designed as an alternative synthesis engine to Festival for voices built using the FestVox suite of voice building tools.