I am making a Smart House Control System right now, and I have a little problem. I was thinking on using Cosmos for a base system, and adding the needed namespace libraries to it, but as the usual System.Speech.Recognition namespace depends too much on Windows Speech API, I have to forget about using it.

So my question is, is there any (free if possible) voice recognition and/or speech speech synthesizer library for C#, what has the following:

• support for multi-language speaking
• extracting text content from speech sample
• synthesizing speech with selectable (or user-written) speech pattern (voice)

A general usage, non-windows dependent library would be the best, and of course, if it was free too.