speech recognition

hey evryone...speech recognition is ma final yr proj...n once da words r recognised i want the controller to send them to a cel phone n type da msg according to da words spoken...basically i want ma proj to be a tool by which da blind can type n send msgs...any help in dis regard will be welcome...i also need information regardin 16 bit MUC's since i believe FFT will require a lot of computation...

thanks in advance...