Packet-loss concealment technology advances in EVS
Packet-loss concealment technology advances in EVS
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EVS 中丢包隐藏技术的进步
DOI：
10.1109/icassp.2015.7179065
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
J. Faure
中科院分区：
文献类型：
--
作者：
Jérémie Lecomte;Tommy Vaillancourt;S. Bruhn;Hosang Sung;Ke Peng;Kei Kikuiri;Bin Wang;Shaminda Subasingha;J. Faure
EVS是针对VoLTE等移动的服务开发的新标准化的3GPP增强型语音服务编解码器（EVS），其中错误恢复是非常重要的。本文概述了在EVS开发过程中对丢包隐藏所带来的进步的各个方面，通过对最终标准化编解码器中存在的所有技术特征进行高级描述。结合抖动缓冲区管理，EVS编解码器提供了对延迟或丢失数据包的鲁棒性。基于收听测试结果，进一步讨论了新的EVS编解码器相对于参考编解码器的优势。
EVS, the newly standardized 3GPP Codec for Enhanced Voice Services (EVS) was developed for mobile services such as VoLTE, where error resilience is highly essential. The presented paper outlines all aspects of the advances brought during the EVS development on packet loss concealment, by presenting a high level description of all technical features present in the final standardized codec. Coupled with jitter buffer management, the EVS codec provides robustness against late or lost packets. The advantages of the new EVS codec over reference codecs are further discussed based on listening test results.