| 一种自适应压缩率的实时语音传输系统的实现 |
| |
| 引用本文： | 董文涛,段新涛,秦晓凌,张文龙.一种自适应压缩率的实时语音传输系统的实现[J].计算机工程,2004,30(1):107-109. |
| |
| 作者姓名： | 董文涛 段新涛 秦晓凌 张文龙 |
| |
| 作者单位： | 上海师范大学数理信息学院,上海,200234 |
| |
| 摘 要： | 现存网络传输系统具有异构和时变的特点，提出了一种基于CCITT的G．726建议的自适应压缩率的实时语音网络传输系统的实现方法。发送方根据RTCP的接收者报告判断其网络状况，把用户分为4级，然后为不同级的用户提供相应的压缩率数据，在一定程度上减少了包丢失率和抖动，从而保证了实时语音传输系统的QoS。
|
| 关 键 词： | G.726 实时传输协议／实时传输控制协议 服务质量 自适应算法 |
| 文章编号： | 1000-3428(2004)01-0107-03 |
Implementation of Adaptive Compression Ratio Real-time Speech Transport System |
| |
| DONG Wehtao,DUAN Xintao,QIN Xiaoling,ZHANG Wenlong.Implementation of Adaptive Compression Ratio Real-time Speech Transport System[J].Computer Engineering,2004,30(1):107-109. |
| |
| Authors: | DONG Wehtao DUAN Xintao QIN Xiaoling ZHANG Wenlong |
| |
| Abstract: | Since now network transport system has heterogenous and time-varying characteristics, this paper presents an adaptive compression ratio real-time t ransport scheme based on recommendation G.726 of CCITT.After determining the net work condition of users by RTCP receiver reports and classifying them as 4 types , it sends corresponding compression ratio audio to the users. This mechanism re duces packet loss and jitter and provides QoS for real-time speech transport sys tem. |
| |
| Keywords: | G 726 RTP/RTCP QoS Adaptive algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
