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The proposed paper presents the design and Implementation of a Security based system using Voice to activate any Device/circuit. This system is implemented using MATLAB and Arduino Uno as a testing component. The proposed system consists of two phases one is recording the user’s voice signals.

The extracted voice features are stored in the data base. In the second phase, the stored voice samples are compared with the samples in the database and determines whether it is matched or not. Mel Frequency Cepstral Coefficients (MFCC) Algorithm is used to extract the features of speaker’s voice as it is found to be one of the most accurate techniques that could simulate the human audibility behavior. The testing device used in the proposed system is Ardunio Uno. Finally, The detailed simulation results were presented in this paper