Robust Spoofed Speech Detection with Denoised I-vectors

IF 1 Q3 MULTIDISCIPLINARY SCIENCES gazi university journal of science Pub Date : 2022-10-06 DOI:10.35378/gujs.1062788
Gökay Dişken
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Abstract

Spoofed speech detection is recently gaining attention of the researchers as speaker verification is shown to be vulnerable to spoofing attacks such as voice conversion, speech synthesis, replay, and impersonation. Although various different methods have been proposed to detect spoofed speech, their performances decrease dramatically under the mismatched conditions due to the additive or reverberant noises. Conventional speech enhancement methods fail to recover the performance gap, hence more advanced techniques seem to be necessary to solve the noisy spoofed speech detection problem. In this work, Denoising Autoencoder (DAE) is used to obtain clean estimates of i-vectors from their noisy versions. ASVspoof 2015 database is used in the experiments with five different noise types, added to the original utterances at 0, 10, and 20 dB signal-to-noise ratios (SNR). The experimental results verified that the DAE provides a more robust spoof detection, where the conventional methods fail.
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基于去噪I矢量的鲁棒假脱机语音检测
由于说话人验证容易受到语音转换、语音合成、重放和模仿等欺骗攻击的影响,欺骗语音检测最近受到了研究人员的关注。尽管人们提出了各种不同的方法来检测欺骗语音,但由于加性噪声或混响噪声的不匹配,它们的性能急剧下降。传统的语音增强方法无法恢复性能差距,因此需要更先进的技术来解决噪声欺骗语音检测问题。在这项工作中,使用去噪自动编码器(DAE)从i向量的噪声版本中获得干净的估计。实验使用ASVspoof 2015数据库,在原始语音中分别添加0、10和20 dB信噪比的5种不同类型的噪声。实验结果证实,DAE提供了一个更强大的欺骗检测,而传统的方法失败。
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来源期刊
gazi university journal of science
gazi university journal of science MULTIDISCIPLINARY SCIENCES-
CiteScore
1.60
自引率
11.10%
发文量
87
期刊介绍: The scope of the “Gazi University Journal of Science” comprises such as original research on all aspects of basic science, engineering and technology. Original research results, scientific reviews and short communication notes in various fields of science and technology are considered for publication. The publication language of the journal is English. Manuscripts previously published in another journal are not accepted. Manuscripts with a suitable balance of practice and theory are preferred. A review article is expected to give in-depth information and satisfying evaluation of a specific scientific or technologic subject, supported with an extensive list of sources. Short communication notes prepared by researchers who would like to share the first outcomes of their on-going, original research work are welcome.
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