Text-to-speech for iPhone (preferably Monotouch)

I am looking into implementing text-to-speech in an iPhone (Monotouch) app I am creating. What good such libraries are there around? If necessar开发者_Go百科y I will have to map a standard iPhone library to Monotouch.

There is no built-in standard iOS library with a public API. Several apps in the App store use the CMU flite (or Festival Lite speech synthesis engine) library, for which there are ports of the library to the iOS/iPhone, perhaps here.

The Monotouch wiki has an explanation here describing how to cross-compile Flite for the iPhone and interop the libraries with Monotouch.