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   internet voice communication 的翻译结果: 查询用时:0.179秒
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internet voice communication
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     EPESQ algorithm has been implemented in our Internet voice communication system.
     此算法适合于语音质量实时测评和嵌入式系统实现,并且已经应用在自行研制的Internet语音通信系统中。
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  相似匹配句对
     Outlook of Voice Internet
     语音互联网展望
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     Methods for Voice Transfering on Internet
     实现Internet上传话音的两种方法
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     VOICE
     声音
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     The Internet
     因特网
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     Internet
     时尚另类的网络语言
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  internet voice communication
The IJPhone system consists of two main components: the Web-based Telephone Exchange for user connection and Internet Java Phone Applet for establishing real-time Internet voice communication.
      


An objective evaluation algorithm of speech quality is proposed. It contributes 3 simplifications to the psychoacoustics model in ITU-T P.862 Recommendation: Intermediate Reference System (IRS) filter is removed or replaced by a rectangle filter. Intensity warping function based on Zwicker's law is replaced by 2 kinds of linear functions of logarithmic power of speech frames. Weights over speech frames in disturbance integration procedure are reallocated in 1-0 pattern to simulate the mask effect of human hearing....

An objective evaluation algorithm of speech quality is proposed. It contributes 3 simplifications to the psychoacoustics model in ITU-T P.862 Recommendation: Intermediate Reference System (IRS) filter is removed or replaced by a rectangle filter. Intensity warping function based on Zwicker's law is replaced by 2 kinds of linear functions of logarithmic power of speech frames. Weights over speech frames in disturbance integration procedure are reallocated in 1-0 pattern to simulate the mask effect of human hearing. The experiment results show that 39% of the floating points operations can be eliminated from P.862 with only a 8.8% decrease in average correlation to listener opinions. EPESQ algorithm has been implemented in our Internet voice communication system.

分析了国际电信联盟提出的语音质量感知评价算法的原理,优化了其中的心理声学模型,提出了高效语音质量感知评价(EPESQ)算法。该算法采用无滤波或理想带通滤波代替原算法的IRS滤波,用对数关系简化了强度扭曲过程,并基于人耳的掩蔽效应,按照语音帧能量的不同来简化扰动聚合的加权过程。实验表明,EPESQ算法的时间复杂度平均比原算法降低了39%,而与主观评价的相关度仅下降了8.8%。此算法适合于语音质量实时测评和嵌入式系统实现,并且已经应用在自行研制的Internet语音通信系统中。

 
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