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基于PAOLA的丢包补偿算法 被引量:2

A New Packet Loss Concealment Method Based on PAOLA
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摘要 VoIP的语音质量受到丢包、延时、时延抖动等因素影响。为提高语音质量,需要进行丢包补偿处理,如采用WSOLA算法。首先介绍了WSOLA算法的原理,然后提出了用PAOLA对其进行优化的方法,最后对恢复语音质量进行了比较。 The quality of VolP is affected by the packet loss, time delay, jitter and other factors. To improve its quality, the packet loss concealment such as WSOLA(Waveform Similarity Overlap-Add) can be used. A new technique based on PAOLA(Peak Alignment Overlap-Add) is proposed to optimize WSOLA, and the quality of the retrieval speech is compared.
出处 《电声技术》 2007年第4期53-55,58,共4页 Audio Engineering
基金 国家自然科学基金资助项目(10304008) 高等学校博士学科点专项科研基金资助课题
关键词 丢包补偿 时域尺度修改 WSOLA PAOLA packet loss concealment time-scale modification WSOLA PAOLA
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参考文献5

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同被引文献25

  • 1廖彬,冯穗力,叶梧.基于H.264的差错掩盖技术的研究[J].电视技术,2005,29(1):26-28. 被引量:2
  • 2张继生.地面数字多媒体广播标准T-DMB[J].电视技术,2005,29(3):4-6. 被引量:3
  • 3刘嘉龑,刘佩林,孙军.频谱恢复技术综述[J].电声技术,2005,29(4):46-50. 被引量:2
  • 4王培明,施寅.VoIP中丢包隐藏技术研究[J].计算机技术与发展,2006,16(7):26-28. 被引量:7
  • 5李如玮,鲍长春.VoIP丢包处理技术的研究进展[J].通信学报,2007,28(6):103-110. 被引量:17
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