Evaluating the effects of buffer management on voice transmission over packet switching networks

TitleEvaluating the effects of buffer management on voice transmission over packet switching networks
Publication TypeConference Paper
Year of Publication2001
AuthorsZahirAzami, S. B., A. Yongacoglu, L. Orozco-Barbosa, and T. Aboulnasr
Conference NameCommunications, 2001. ICC 2001. IEEE International Conference on
Pagination738 -742 vol.3
Keywordsbuffer management, buffer storage, computer network management, forward error correction, G.729A algorithm, G.729A coded speech, Internet telephony, loss pattern, packet switching, packet switching networks, privileged policy, quasi-uniform packet loss, speech coding, subjective quality improvement, voice transmission, VoIP
Abstract

Transmission of G.729A coded speech over packet switching networks including forward error correction is considered. Three buffer management policies are applied: simple, random and privileged. The privileged policy plays an important role to achieve quasi-uniform packet loss among multiple users. Its effect on spreading the loss among various sources and in avoiding consecutive or closely timed losses for any source is described. In this paper, the subjective quality improvement by correctly adapting the loss pattern to the sensitivity of the G.729A algorithm is described

URLhttp://dx.doi.org/10.1109/ICC.2001.937337
DOI10.1109/ICC.2001.937337

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