丢包预测对Opus编解码器客观质量指标的影响分析

2014 IEEE 12th International Symposium on Intelligent Systems and Informatics (SISY) Pub Date : 2014-10-16 DOI:10.1109/SISY.2014.6923611

Aleksandar Pejic, P. Stanic, Szilveszter Pletl

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引用次数: 1

摘要

本文讨论了Opus音频编解码器在特定实现中的性能评估。利用解码后的信号客观质量度量，研究了不同的丢包设置。丢包可能发生在拥塞的有线或不太可靠的射频数据连接上。对基于波形、基于频谱、基于感知和复合的测量方法进行了计算和分析。测试结果表明，在一定的丢包预测值下，编解码器中实现的丢包隐藏算法的表现与预期不同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of packet loss prediction effects on the objective quality measures of Opus codec

This article deals with performance evaluation of the Opus audio codec in a particular implementation. Different packet loss settings are investigated in means of the decoded signal objective quality measures. Packet loss can occur either on the congested wired or on the less reliable radio frequency data connections. Waveform based, spectrum based, as well as perceptual based and composite measures are computed and analyzed. Test results indicated that the packet loss concealment algorithm implemented into the codec behaves differently than expected at certain predicted packet loss values.

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来源期刊

2014 IEEE 12th International Symposium on Intelligent Systems and Informatics (SISY)

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