Abstract: Sign language is the principle means of communication for many deaf people. But most of the normal people faces difficulty in communication in this way with the speech impaired people. Thus, we proposed a system in which piezoelectric vibration sensors are installed on the hand gloves and the data obtained from the sensors are calibrated accordingly using MATLAB programming language. On tapping the vibration sensor, the data is send to the vibration sensor module. This sensor module sends the analog data to the Arduino board. Then this microcontroller board sends the analog output to the MATLAB via USB which is converted into predefined words in the MATLAB. The predefined words can be hello, good morning, welcome etc. In this way, we will understand what the user wants to say.

Keywords: Speech impaired, Piezoelectric , Vibration , Arduino , MATLAB.