Voice Spoofing Countermeasure Based on Spectral Features to Detect Synthetic Attacks Through LSTM

Gulam Qadir (), Saima Zareen, Farman Hassan and Auliya Ur Rahman
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Gulam Qadir: University of Engineering and Technology Taxila, Punjab Pakistan
Saima Zareen: University of Engineering and Technology Taxila, Punjab Pakistan
Farman Hassan: University of Engineering and Technology Taxila, Punjab Pakistan
Auliya Ur Rahman: University of Engineering and Technology Taxila, Punjab Pakistan

International Journal of Innovations in Science & Technology, 2022, vol. 3, issue 5, 153-165

Abstract: With the growing number of voice-controlled devices, it is necessary to address the potential vulnerabilities of Automatic Speaker Verification (ASV) against voice spoofing attacks such as Physical Access (PA) and Logical Access (LA) attacks. To improve the reliability of ASV systems, researchers have developed various voice spoofing countermeasures. However, it is hard for the voice anti-spoofing systems to effectively detect the synthetic speech attacks that are generated through powerful spoofing algorithms and have quite different statistical distributions. More importantly, the speedy improvement of voice spoofing structures is producing the most effective attacks that make ASV structures greater vulnerable to stumble on those voice spoofing assaults. In this paper, we proposed a unique voice spoofing countermeasure which is successful to hit upon the LA attacks (i.e., artificial speech and transformed speech) and classify the spoofing structures by the usage of Long Short-Term Reminiscence (LSTM). The novel set of spectral features i.e., Mel-Frequency Cepstral Coefficients (MFCC), Gammatone Cepstral Coefficients (GTCC), and spectral centroid are capable to seize maximum alterations present in the cloned audio. The proposed system achieved remarkable accuracy of 98.93%, precision of 100%, recall of 92.32%, F1-score of 96.01%, and an Equal Error Rate (EER) of 1.30%. Our method achieved 8.5% and 7.02% smaller EER than the baseline methods such as Constant-Q Cepstral Coefficients (CQCC) using Gaussian Mixture Model (GMM) and Linear Frequency Cepstral Coefficients (LFCC) using GMM, respectively. We evaluated the performance of the proposed system on the standard dataset i.e., ASVspoof2019 LA. Experimental results and comparative analysis with other existing state-of-the-art methods illustrate that our method is reliable and effective to be used for the detection of voice spoofing attacks.

Keywords: ASVspoof 2019 LA dataset; Deep Learning; Spoofing countermeasure; Synthetic Speech; Voice anti-spoofing (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:abq:ijist1:v:3:y:2022:i:5:p:153-165

DOI: 10.33411/IJIST/2021030512

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