Verifikasi Suara menggunakan Jaringan Syaraf Tiruan dan Ekstraksi Ciri Mel Frequency Cepstral Coefficient

*Andi Kurniawan  -  Universitas Sultan Fatah Demak, Indonesia
Received: 20 Jun 2016; Published: 27 May 2017.
Open Access
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Article Info
Section: Research Articles
Language: EN
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In Vol 7, No 1 (2017): Volume 7 Nomor 1 Tahun 2017
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Abstract

Voice recording is an important part of the evidence for the suspect, so it is necessary to verify the voice suspects to prove the allegations of the suspect. The research aims to develop a voice verification system using artificial neural networks and extraction characteristics mel frequency cepstral coefficient. As the input data analyzed is the data of the unrecognized voice recorder of the owner and the recorded data of the sound that the owner has known as the comparison data. Data input is processed by feature extraction consisting of framing, windowing, fast Fourier transform, mel frequency wrapping, discrete cosine transform resulting in mel-frequency wrapping coefficient. The mel frequency wrapping coefficient of each frame in each input voice, is used as input on pattern recognition using artificial neural networks. The results of artificial neural networks are analyzed using decision logic to get a decision whether these two voices are the same or not. The output of the system is a decision that the tested sound is the same as or not with a voice comparison. Based on the level of compatibility of the test data produces a voice verification system with mel-frequency wrapping and artificial neural networks have a rate of 96% accuracy. The accuracy of the voice verification system can be an option to help resolve the issues in verification of voice recordings.

Keywords
Voice Verification System; Mel Frequency Cepstral Coefficient; Mel-Frequency Wrapping; Artificial Neural Network

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