网络延迟与缓冲的矛盾是VOIP应用中的一个重要问题。介绍了VOIP应用中几种当前主要的缓冲算法,分别分析了它们的优缺点,提出了新的自适应缓冲算法,称为fISd算法,对现有的代表性算法以及fISd算法分别进行了仿真实验。结果表明,在网络延迟抖动较大时,新算法可以有效地提高语音质量。The contradiction between network delay and the buffer is an important issue of the application of VoIP.Introduces several major current buffer algorithms in the application of VoIP,and analyses their advantages and disadvantages respectively.Then a new adaptive buffer algorithm is proposed,which is named FISD algorithm.The representation of the existing algorithms and FISD algorithm simulation experiments were carried out.The results show that when the network delay jitter is intense,the new algorithm can effectively improve voice quality.福建省2004年自然科学基金资助项目(A0410004);厦门大学院士基金资助项目(0630-E23011);厦门大学新世纪优秀人才支持基金(0000-X07116
