GINA's text to speech capabilities are built on Microsoft's Text to Speech API, which uses voice engines to do the translation. Windows XP comes with two SAPI4 voice engines (Sam and Mary), and Windows Vista and Windows 7 comes with one SAPI5 voice engine (Microsoft Anna). More voices can be downloaded or purchased from third party vendors. I'll list some here as I become aware of them.

Free Voice Engines

  • eSpeak: Download and install the "Compiled for Windows. SAPI5 and command-line versions. " version from their Downloads page.