The Linux Audio Developers' Mailing List <linux-audio-dev(a)music.columbia.edu>
writes:
 Greetings Earthlings:
  The subject line says it all....
    
http://www.linuxsound.at   (Europe)
    
http://linuxsound.jp   (Japan)
    
http://linux-sound.org   (US) 
A request - on the sub-page:
http://linux-sound.org/speech.html
You have a link to the 'rsynth the venerable speech synthesizer'
While the veneration is welcome, it has a little more life again now.
Can I suggest you add a link to
http://sourceforge.net/projects/rsynth/
The sourceforge version has clearer Copyright/license status.