Voicing-aware parametric speech quality models over VoIP networks
GIIS'09 Proceedings of the Second international conference on Global Information Infrastructure Symposium
Performance study of objective speech quality measurement for modern wireless-VoIP communications
EURASIP Journal on Audio, Speech, and Music Processing
PinDr0p: using single-ended audio features to determine call provenance
Proceedings of the 17th ACM conference on Computer and communications security
Charging algorithm for quality-based VoIP charging mechanism
ICHIT'11 Proceedings of the 5th international conference on Convergence and hybrid information technology
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Voice-over-IP networks (VoIP) have yet to be universally accepted as a replacement for public switched telephone network services. One of the barriers to this step is the ability to manage the network to ensure the user receives a suitable quality of service during a call. IP networks are nondeterministic, and the impact of network degradations, such as loss and jitter, on the quality perceived by the user is difficult to measure. This paper investigates the role played by the edge-device in the impact of network degradations on user-perceived quality. It shows that all edge-devices are not equal, and proposes calibration as a method of accounting for different devices when monitoring VoIP streams. Finally, it presents results that show the prediction accuracy that can be obtained by using such a method