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Bursty packet loss in VoIP
Zitatschlüssel soloducha2014a
Autor Soloducha, Michal and Raake, Alexander
Jahr 2014
Adresse Geneva
Nummer COM 12 - C 232 - E
Monat sep
Wie herausgegeben full
Institution International Telecommunication Union
Zusammenfassung This contribution presents a study on the influence of bursty packet loss on the listening quality of Voice over IP (VoIP) connections. The goal is to revisit this degradation type in the context of today�s narrowband (NB) and wideband (WB) telephone connections as used in fixed-line VoIP and Voice over LTE (VoLTE), and to analyse the relation between listening test results and predictions by existing models. Packet loss patterns were generated using a 2-state Markov model. A listening test was carried out, and the results were analysed using analysis of variance (ANOVA) and Post-hoc tests indicating a dependency of quality on the bandwidth, the loss distribution and applied packet loss concealment (PLC). The results were compared with scores obtained from the standardized speech quality models POLQA (ITU-T Rec. P.863), PESQ (ITU-T Rec. P.862) and the E-model (ITU-T Rec. G.107). Implications on current approaches in VoIP quality monitoring are indicated.
Typ der Publikation ITU-T Contribution
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