摘要
随着IP网络的不断发展,其传输的可靠性以及延时得到了很大的改善,这使得利用Internet进行实时的通话成为了可能。但目前尚未有一种简易、有效的方法来检测音频传输的延时。本文旨在提出一个简易、有效的测试方法,并对该检测方法的准确性进行仿真分析。仿真结果证明,该检测方法能准确检测100 ms以上的音频延时,并且具有一定的精度。
With the development of the IP network, transmission delay and reliability have been greatly improved, so that real-time call through the Internet becomes possible. However, there is not yet a simple and effective method for detecting the delay of the audio transmission. This paper aims to propose a simple, effective detection method and analysis the accuracy of the detection method by simulation. The simulation results show that the method can accurately detect the audio delay when it is greater than 100 ms.
出处
《实验室研究与探索》
CAS
北大核心
2013年第11期101-103,112,共4页
Research and Exploration In Laboratory
基金
浙江省科技厅重点科技创新团队资助项目(R50011)
关键词
自相关
延时检测
音频传输系统
IP网络
autocorrelation
delay detection
audio transmission system
IP network
