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 2202.01630eess.AScs.SD
收藏

立体声声学回声消除的深度复数多帧滤波网络

A deep complex multi-frame filtering network for stereophonic acoustic echo cancellation

Institute of Acoustics, Chinese Academy of Sciences(中国科学院声学研究所);University of Chinese Academy of Sciences(中国科学院大学)

Linjuan Cheng, Chengshi Zheng, Andong Li, Yuquan Wu, Renhua Peng, Xiaodong Li

摘要:

在免提通信系统中,扬声器和麦克风之间的耦合会产生回声信号,严重影响通信质量。同时,通信环境中的各种类型的噪声进一步降低了语音质量和可懂度。在一步内从麦克风信号中提取近端信号是困难的,特别是在低信噪比的场景中。在本文中,我们提出了一种深度复杂网络方法来解决这个问题。特别地,我们将立体声声学回声消除分解为两个阶段,包括线性立体声声学回声消除模块和残余回声抑制模块,其中两个模块都基于深度学习架构。提出了一种多帧滤波策略,通过捕获更多的帧间信息,有利于线性回波的估计。此外,我们将复谱映射解耦为幅度估计和复谱细化。实验结果表明,我们所提出的方法实现了阶段的最先进的性能在各种条件下比以前的先进算法。

英文摘要:

In hands-free communication system, the coupling between loudspeaker and microphone generates echo signal, which can severely influence the quality of communication. Meanwhile, various types of noise in communication environments further reduce speech quality and intelligibility. It is difficult to extract the near-end signal from the microphone signal within one step, especially in low signal-to-noise ratio scenarios. In this paper, we propose a deep complex network approach to address this issue. Specially, we decompose the stereophonic acoustic echo cancellation into two stages, including linear stereophonic acoustic echo cancellation module and residual echo suppression module, where both modules are based on deep learning architectures. A multi-frame filtering strategy is introduced to benefit the estimation of linear echo by capturing more inter-frame information. Moreover, we decouple the complex spectral mapping into magnitude estimation and complex spectrum refinement. Experimental results demonstrate that our proposed approach achieves stage-of-the-art performance over previous advanced algorithms under various 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。

↑