Melissa
Melissa is a virtual assistant for OS X, Windows and Linux systems. She currently uses either Google's speech-to-text engine or CMU's Sphinx, OS X's say command or Linux's espeak command along with some magical scripting which makes her alive, developed by Tanay Pant and a group of sorcerers.
Check out our wiki, where we have installation and configuration instructions, usage guide as well as relevant documentation.
Discussion and Support
If you face an issue or require support, please take a look through the GitHub Issues, as you may find some useful advice there. If you are still facing issues, feel free to create a post at our Google Group Forum describing the issue and the steps you have taken to debug it.