Thank you very much, DC Ron, for your comment.
I know that the accentuation on the words is not good.
But it's not very easy for my french ear to hear the stresses...
David Cuny (thanks to him) has given me this link :
http://www.speech.cs.cmu.edu/cgi-bin/cmudict?in=somewhere
I use it to pronounce words but not to accentuate them.
I think it would take me too much time... I don't know!
And I don't know if the there's an easier way to make it on Synthesizer v.
At last, I would like to find a real good singer to perform this song.
I prefer the real human emotion!