Ok, I want to know if there is a website that has a feature such that when I enter a text (with specifying the language, whether a male or female voice, .. etc.) ,it generates a voice for this text (like that website but a FREE one)

I know for this. There are many programs with which you can record this sounds in background.

One hit from the Google search. Do you know this service?
Yakitome

check out this. You have to pay for the good voices and it still sounds a robotic. It records read text to mp3
http://www.naturalreaders.com/index.html

also check Ivona

You can also use Google TTS:

http://translate.google.com/translate_tts?tl=en&q=3dgs%20is%20dead

Just change the text at the end. For another language change the "en" to f.e. "de" (German).
You can download the sound file and even choose the format (ogg, mp3, wav...) and use this service with http requests.

Ok, problem solved. Thank you all ...