FreeTTS is a speech synthesis engine written entirely in the
Java(tm) programming language. FreeTTS was written by the Sun Microsystems Laboratories Speech Team and is based on CMU's
Flite engine. FreeTTS also includes a partial JSAPI 1.0
The jTTS project provides a refactored implementation of the FreeTTS software speech synthesizer. Rather than building upon the flite implementation of a TTS engine, it implements engine capabilities from Festival. It also supports British English.