[ruuk]

I have Espeak and HTTP TTS server as my option. But with http server I only have option to enter IP.

The google backend is separate from the http server backend. You need one of the listed players installed on the XBMC machine.

Since the http server has the same backends as the addon, you can have Google play speech on the server machine if that machine has one of the players installed. I still need to add the code to convert mp3 to wav so that it can play on the client machine when using the server.