IRC-Speak is a project mainly written in Python, it's free.
XChat plugin for synthesizing speech of chats
Note: this plugin requires my fork of python-espeak to properly display the list of available languages Don't be surprised if you get an exception when you try to do "/ircspeak langlist"
Put irc_speak.py in your .xchat2 directory (usually ~/.xchat2) Install either python-synth (https://github.com/nisstyre56/python-synth) or python-espeak (https://launchpad.net/python-espeak) In both cases it should be as simple as "python setup.py"
If you're using python-synth:
" git clone http://github.com/nisstyre56/python-synth.git " to get a copy of the source
/help ircspeak
Setting a new user: /ircspeak set --help
Deleting a user:
/ircspeak del
Listing users:
/ircspeak list
Saving your options: /ircspeak save
Get a list of all available languages: /ircspeak langlist