Speakup is a screen review package written by Kirk Reiser and Andy Berdan and is available under a free license. Speakup gives users with visual or mobility impairments the ability to have audible console feedback using a speech synthesizer. Speakup is useful to blind users because it provides an audible installation and is fully supported by the blind open source community.
Speakup works with the following hardware synthesizers:
DoubleTalk PC and DoubleTalk LT
LiteTalk
Accent PC and Accent SA
Speakout
Artic Transport
Audapter
Braille 'N Speak and Type 'N Speak
Dectalk External and Dectalk Express
Apollo2