text in my own voice

i am a beginner in c# and have come across voice recognition programme in c# where we can hear the text in computer's voice and we can also write text in textbox by speaking. But i want to make a programme where the text which i write in textbox should be spoken in my friend's  voice instead of computer's voice. so is it possible?? may be by recording the same words in his voice before writing them or something like this and how???