Acoustic Resonance Testing Machine which is the test subjects by tapping and a Non-Destructive Test (NDT). This aims to develop low cost automated inspection system to detect different types of objects, inclusion etc. using ART principles, improving both the accuracy and the efficiency of the existing ART systems[2].The principle of work is sound recording by tapping the object. Then take the results into MATLAB and existing systems use FFT for implementing Discrete Fourier Transform to convert time domain information to frequency domain information. This approach can be optimized in check as well.