基于RTP协议的实时语音传输研究与实现

发布时间：2018-01-31 11:19

本文关键词： RTP协议语音数据实时传输延时　出处：《黑龙江大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着Internet网络的迅速发展，在人们的日常生活中，出现了越来越多的网络业务。相较于其它业务，语音数据的实时传输业务成为了网络发展的热点。在网络中传输语音数据，既要考虑到网络通道的带宽问题，，又要确保语音数据在传输过程中的实时性及连续性。为此，IEFT在RFC1989中发布了RTP协议。论文中，详细介绍了流媒体数据的特点，语音数据在传输过程中会出现的问题，以及RTP协议的特点和应用，并提出了在ARM处理器上实现基于RTP协议的实时语音数据传输的设计。语音数据在传输过程中会出现传输延时、传输抖动及数据包丢失等问题。为了保证语音数据的服务质量，在硬件方面，使用支持10/100M的LAN8720A网口芯片传输数据。在软件方面，实现了语音数据的采集、编码、压缩、解码、RTP打包分组、发送和接收操作，在软硬件的协同配合下，实现了基于RTP协议的实时语音数据的传输。
[Abstract]:With the rapid development of Internet network, more and more network services appear in people's daily life, compared with other services. The real-time transmission of voice data has become a hot spot in the development of network. In the transmission of voice data in the network, we should consider the bandwidth of the network channel. In order to ensure the real-time and continuity of voice data transmission, IEFT issues RTP protocol in RFC1989. In this paper, the characteristics of streaming media data, the problems of voice data transmission, and the characteristics and applications of RTP protocol are introduced in detail. The design of real-time voice data transmission based on RTP protocol on ARM processor is proposed. In order to ensure the quality of service of voice data, there are some problems such as transmission delay, transmission jitter and packet loss in the process of voice data transmission. In the software aspect, the data acquisition, coding, compression and decoding are realized. With the cooperation of hardware and software, the transmission of real-time voice data based on RTP protocol is realized.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.04

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