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arXiv 2110.03213eess.AS
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用于与文本无关的说话人确认和语音分析的时间动态卷积神经网络

Temporal Dynamic Convolutional Neural Network for Text-Independent Speaker Verification and Phonemetic Analysis

Seong-Hu Kim, Hyeonuk Nam, Yong-Hwa Park

摘要:

在文本无关的说话人识别领域,已经提出了沿时间轴自适应的动态模型来考虑语音的音素变化特性。然而,动态模型如何根据音素工作的详细分析是不够的。在本文中,我们提出了时间动态CNN(TDY-CNN),认为音素的时间变化,通过应用内核最佳适应每个时间仓。这些核通过应用训练的基核的加权和来适应时间仓。然后,分析了自适应核如何在各个层中对不同的音素进行工作。与基线模型ResNet-38(x0.5)相比,使用六个基核的TDY-ResNet-38(x0.5)将等错误率(EER),即说话人验证性能提高了17.3%。此外,我们表明,自适应内核依赖于音素组,并在早期层更音素特定。时间动态模型适应音素没有明确给定的音素信息在训练过程中,结果表明,有必要考虑音素变化的话语更准确和强大的文本无关的说话人验证。

英文摘要:

In the field of text-independent speaker recognition, dynamic models that adapt along the time axis have been proposed to consider the phoneme-varying characteristics of speech. However, a detailed analysis of how dynamic models work depending on phonemes is insufficient. In this paper, we propose temporal dynamic CNN (TDY-CNN) that considers temporal variation of phonemes by applying kernels optimally adapting to each time bin. These kernels adapt to time bins by applying weighted sum of trained basis kernels. Then, an analysis of how adaptive kernels work on different phonemes in various layers is carried out. TDY-ResNet-38(x0.5) using six basis kernels improved an equal error rate (EER), the speaker verification performance, by 17.3% compared to the baseline model ResNet-38(x0.5). In addition, we showed that adaptive kernels depend on phoneme groups and are more phoneme-specific at early layers. The temporal dynamic model adapts itself to phonemes without explicitly given phoneme information during training, and results show the necessity to consider phoneme variation within utterances for more accurate and robust text-independent speaker verification.

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。

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