Thank you Ijaz.

I found one interesting single chip text to voice converter.

down loaded the data sheet from

http://www.winbond.com/e-winbond..._a_5_a.htm

i feel this is the simplest thing to do. since i have already stored messages to display on the lcd. same messages can be feed to this ic.

i will go through it and come back.

Thank you very much Ijaz.

Haribabu