festival 1.4.3-17.1ubuntu5 (amd64 binary) in ubuntu feisty

 Festival offers a full text to speech system with various APIs, as
 well an environment for development and research of speech synthesis
 techniques. It includes a Scheme-based command interpreter.
 .
 Besides research into speech synthesis, festival is useful as a
 stand-alone speech synthesis program. It is capable of producing
 clearly understandable speech from text.