Adaptive VoIP playout scheduling: assessing user satisfaction
Delay and packet loss dramatically affect the quality of voice-over-IP (VoIP) calls and depend on the playout buffer scheme implemented at the receiver. The choice of playout algorithm can't be based on statistical metrics without considering the perceived end-to-end conversational speech quali...
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| Veröffentlicht in: | IEEE internet computing 2005-07, Vol.9 (4), p.28-34 |
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| creator | Narbutt, M. Kelly, A. Perry, P. Murphy, L. |
| description | Delay and packet loss dramatically affect the quality of voice-over-IP (VoIP) calls and depend on the playout buffer scheme implemented at the receiver. The choice of playout algorithm can't be based on statistical metrics without considering the perceived end-to-end conversational speech quality. The authors present a method for evaluating various playout algorithms that extends the E-model concept by estimating user satisfaction from time-varying transmission impairments. This article evaluates several playout algorithms and shows a correspondence between the authors' results and those obtained via statistical loss and delay metrics. |
| doi_str_mv | 10.1109/MIC.2005.72 |
| format | Article |
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| issn | 1089-7801 1941-0131 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | adaptive playout algorithms Adaptive scheduling call quality assessment Computational modeling Delay effects Internet telephony IP networks jitter compensation Narrowband Speech analysis Speech codecs Telecommunication computing Testing user satisfaction VoIP |
| title | Adaptive VoIP playout scheduling: assessing user satisfaction |
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