重庆邮电大学学报（自然科学版）2017，Vol.29Issue(2)：149-154,6.DOI:10.3979/j.issn.1673-825X.2017.02.002
引入包分析的E-Model语音质量评价模型改进
Improved E-Model of speech quality evaluation model based on packet analysis
杨英杰 1赵万马 1王冲2
作者信息
- 1. 东北电力大学 信息工程学院,吉林 吉林 132012
- 2. 国网内蒙古东部电力有限公司 信息通信分公司,内蒙古 呼和浩特 010020
- 折叠
摘要
Abstract
In order to evaluate the voice quality damage of IP-based voice over internet protocol (VoIP) caused by the loss of voice packets more accurately,we improved the method of calculating Ie-eff,(the damage caused by encoding,decoding and packet loss) in E-Model proposed by ITU-T G.107 recommendations.After considering the internal characteristics of voice package and the situation of unexpected continuous packet loss,we proposed to use Tloss,the actual loss time of voice using fixed voice length,to measure the voice damage caused by the loss of voice packet.The simulation results show that compared with the original model,the pearson's correlation coefficient between the voice quality value using the improved model and the value using perceptual evaluation of speech quality (PESQ) are improved by an average of 0.045 8,and the RMSE are reduced by an average of 0.053 4.Therefore,the improved E-Model is more consistent with PESQ,and more accurate to predict the quality of VoIP voice communication.关键词
基于IP的语音传输(VoIP)/E-Model/语音包/丢包Key words
voice over internet protocol (VoIP)/E-Model/voice packet/packet loss分类
信息技术与安全科学引用本文复制引用
杨英杰,赵万马,王冲..引入包分析的E-Model语音质量评价模型改进[J].重庆邮电大学学报（自然科学版）,2017,29(2):149-154,6.
