arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1909.11200eess.AScs.AIcs.CLcs.SD
收藏

利用两阶段注意模型提高说话人识别的抗噪性

Improving Noise Robustness In Speaker Identification Using A Two-Stage Attention Model

University of Sheffield(谢菲尔德大学)

Yanpei Shi, Qiang Huang, Thomas Hain

摘要:

虽然深度神经网络的使用显著提高了说话人识别性能,但在声学环境较差的情况下分离说话人仍然具有挑战性。为了提高说话人识别系统在噪声环境下的鲁棒性,提出了一种新的两阶段注意机制,该机制可用于时延神经网络(TDNN)和卷积神经网络(CNN)等现有结构中。已知噪声经常在时域和频域中掩盖重要信息。所提出的机制允许模型集中于信号的可靠时间/频率分量。使用Voxceleb 1数据集对所提出的方法进行评估,该数据集旨在评估现实世界中的说话人识别。此外,在不同的信噪比(SNR)的三种类型的噪声被添加到这项工作。将所提出的机制与三个强基线进行比较:X向量,Attentive X-vector和Resnet-34。识别和验证任务的结果表明,两阶段的注意力机制一贯改善后,这些所有的噪音条件。

英文摘要:

While the use of deep neural networks has significantly boosted speaker recognition performance, it is still challenging to separate speakers in poor acoustic environments. To improve robustness of speaker recognition system performance in noise, a novel two-stage attention mechanism which can be used in existing architectures such as Time Delay Neural Networks (TDNNs) and Convolutional Neural Networks (CNNs) is proposed. Noise is known to often mask important information in both time and frequency domain. The proposed mechanism allows the models to concentrate on reliable time/frequency components of the signal. The proposed approach is evaluated using the Voxceleb1 dataset, which aims at assessment of speaker recognition in real world situations. In addition three types of noise at different signal-noise-ratios (SNRs) were added for this work. The proposed mechanism is compared with three strong baselines: X-vectors, Attentive X-vector, and Resnet-34. Results on both identification and verification tasks show that the two-stage attention mechanism consistently improves upon these for all noise conditions.

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。

↑