非线性自适应回波抑制算法:技术综述

B. Panda, Asutosh Kar, M. Chandra
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引用次数: 13

摘要

语音通信在今天已经成为人类生活中不可缺少的一部分。远距离交流和面对面交谈一样重要。因此,语音质量问题需要得到最优先的解决。本文讨论了远距离语音通信的重要性。然后深入研究了该场景中存在声回波的声环境。随后,对非线性声回波进行了研究,提出了在不损害需要传输的重要语音数据的前提下有效消除非线性声回波需要解决的问题。最后,对现有的非线性声回波抵消算法进行了全面比较,给出了各种发现非线性的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Non-linear adaptive echo supression algorithms: A technical survey
Voice communication today has become an indispensable part of human lives. Long distance communication is as crucial as face to face conversation. Hence, the issue of speech quality needs to be addressed with utmost priority. In this paper, the importance of voice communication over long distance is discussed. Then the analysis proceeds with the thorough study of an acoustic environment with the presence of acoustic echo in the scenario. Subsequently, the nonlinear acoustic echo is studied along with the difficulties that need to be tackled with to ensure its effective cancellation without causing harm to the significant voice data that need to be transmitted. Finally, various methods to find the non-linearity are presented with the thorough comparison of the existing nonlinear acoustic echo cancellation algorithms.
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