Model the Packet-Loss Dependent Effective Equipment Impairment Factor in Speech Quality Estimation in VoIP and Its Realization
Packet loss limits the speech quality of voice over IP and the effect is described with the packet-loss dependent effective equipment impairment factor in Emodel. The existing model of the factor is associated with the speech codec and limited to the network with low loss burst Ratio. With the experiments, this paper tries to find the variables in the relation with the speech quality over packet-loss network, and introduces the loss location and the distribution of the loss in burst into the model of the factor with the neural network. Compared with different models with different input parameters, the experiment results show a great prediction gain in the trained model combined with one packet loss and voice loss rate. The model can be used to predicate the speech quality in live combined with the E-model.
speech quality estimation E-model the packet-loss dependent effective equipment impairment factor packet-loss pattern VoIP
LIU Jiao-jiao WEI Gang
Dept of Electronic and Information South China University of Technology Guangzho China Dept of Electronic and Information South China University of Technology Guangzhou China
国际会议
The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)
沈阳
英文
359-362
2010-03-27（万方平台首次上网日期，不代表论文的发表时间）