arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2603.14767cs.SDcs.LG

探讨语音增强对噪声环境中音频深度伪造检测的影响

Investigating the Impact of Speech Enhancement on Audio Deepfake Detection in Noisy Environments

Anacin, Angela, Shruti Kshirsagar, Anderson R. Avila

AI总结:

研究语音质量与音频伪造检测系统性能的关系,通过对比两种增强算法在PESQ和SRMR指标下的表现,发现高语音质量算法在检测任务中表现较差,而低语音质量算法反而更优。

摘要:

逻辑访问(LA)攻击,也称为音频深度伪造攻击,利用文本到语音(TTS)或语音转换(VC)方法生成伪造语音数据。这可能对自动说话验证(ASV)系统构成严重威胁,因为入侵者可以利用此类攻击绕过语音生物识别安全。本研究探讨了语音质量和音频伪造检测系统性能之间的相关性(即LA任务)。为此,评估了两种增强算法在两个感知语音质量指标(即PESQ和Speech-to-Reverberation Modulation Ratio(SRMR))下的性能,并考虑其对音频伪造检测系统的影响。我们采用了ASVspoof 2019挑战提供的LA数据集,并用不同信号噪声比(SNR)水平对其测试集进行破坏,同时保持训练数据不变。增强用于减轻噪声语音的负面影响,比较了两种模型,即语音增强生成对抗网络(SEGAN)和度量优化生成对抗网络加(MetricGAN+)的性能。尽管我们预期语音质量会与语音应用性能相关联,但如果不想要的伪影被引入或相关信息被从语音信号中移除,它也可能对下游任务产生副作用。我们的结果支持这一假设,因为我们发现导致最高语音质量评分的增强算法(MetricGAN+)在音频伪造检测任务中提供了最低的等错误率(EER),而导致最低语音质量评分的增强算法(SEGAN)导致最低EER,从而在LA任务中表现更好。

英文摘要:

Logical Access (LA) attacks, also known as audio deepfake attacks, use Text-to-Speech (TTS) or Voice Conversion (VC) methods to generate spoofed speech data. This can represent a serious threat to Automatic Speaker Verification (ASV) systems, as intruders can use such attacks to bypass voice biometric security. In this study, we investigate the correlation between speech quality and the performance of audio spoofing detection systems (i.e., LA task). For that, the performance of two enhancement algorithms is evaluated based on two perceptual speech quality measures, namely Perceptual Evaluation of Speech Quality (PESQ) and Speech-to-Reverberation Modulation Ratio (SRMR), and in respect to their impact on the audio spoofing detection system. We adopted the LA dataset, provided in the ASVspoof 2019 Challenge, and corrupted its test set with different Signal-to-Noise Ratio (SNR) levels, while leaving the training data untouched. Enhancement was applied to attenuate the detrimental effects of noisy speech, and the performances of two models, Speech Enhancement Generative Adversarial Network (SEGAN) and Metric-Optimized Generative Adversarial Network Plus (MetricGAN+), were compared. Although we expect that speech quality will correlate well with speech applications' performance, it can also have as a side effect on downstream tasks if unwanted artifacts are introduced or relevant information is removed from the speech signal. Our results corroborate with this hypothesis, as we found that the enhancement algorithm leading to the highest speech quality scores, MetricGAN+, provided the lowest Equal Error Rate (EER) on the audio spoofing detection task, whereas the enhancement method with the lowest speech quality scores, SEGAN, led to the lowest EER, thus leading to better performance on the LA task.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑