Shit Talker Phoenix for Mac OS X
There is a binary release of STP for Windows and for OS X on my website here: http://www.dawning.ca/archives/projects/software/stp/
I posted this code here after I mostly abandoned the software and various people had asked me for the source.
Update 2017-02-14: I've cloned this repo back in to my private revision control and am working towards a new release that will go on the Apple App Store, provided they approve.
Note that the voice profiles are those pre-installed in your Mac OS (same as with how the Windows version works). So to add voices, you have to install them to whatever generic location they're installed within your OS. It'd be nice if the Installer could automate the process of installing new voices.
This project was authored in the back of an old Toyota Corolla during a road-trip the Canadian Rocky Mountains, where there is extremely sparse cellular reception.