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Review Papers | Electronics & Communication Engineering | India | Volume 3 Issue 7, July 2014 | Popularity: 6.3 / 10

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Estimating the Closeness of Known and Unknown Speech Signal Using MATLAB

Shivayogi G K, Asha K S

Abstract: In todays world implementation of any expert system with maximum data and networking security becomes a real necessity in academic organizations as well as industrial communities. In this paper, an expert security system is developed using speech recognition technology. A human can easily recognize a familiar voice however; getting a computer to distinguish a particular voice among others is a more difficult task. This paper describes the process behind implementing a speaker recognition algorithm in MATLAB. The algorithm utilizes the Discrete Fourier Transform in order to compare the frequency spectra of two voices. A plot is then generated depicting how the normalized frequency spectra in your voice and compare to the average normal vector of voice data. The algorithm makes a comparison and displays in the command window YOU ARE NOT!!!! if you do not fall within 2 standard deviation of the normal average voice. If you do happen to fall within 2 standard deviation, then the command window displays HELLO!!!

Keywords: Speech Recognition Technology, Discrete Fourier Transform, spectra, secure system

Edition: Volume 3 Issue 7, July 2014

Pages: 1382 - 1385

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