Before revision:  The entire system is divided into three modules: the manipulator, the voice recognition moduleand the microcontroller. The robotic armis programmed to orient to the direction where the signal to noise ratio is maximum .
After revision:  The entire system is divided into three segments: a microphone array, a voice module, and a 3-DOF robotic arm. To validate our approach, we have performed tests with simple and complex sentences for various robotics activities like manipulating a cube and pick and place tasks. Moreover, we also analyzed the test result to rectify the problems and limitations in our approach. The paper presents all the test results which we have achieved through conducting experiments on our project .