i believe you mean "text-to-speech"
afaik the microsoft speech sdk is what most people use to create a tts program.
see here for some useful info:
http://www.microsoft.com/mind/0299/cutting/cutting0299.asp
and here for the downloads:
http://www.microsoft.com/speech/download/old/sapi5.asp
afaik the microsoft speech sdk is what most people use to create a tts program.
see here for some useful info:
http://www.microsoft.com/mind/0299/cutting/cutting0299.asp
and here for the downloads:
http://www.microsoft.com/speech/download/old/sapi5.asp