Abstract
The paper presents a system for monitoring and assessment the speech quality in the IP telephony infrastructures using modular probes. The probes are placed at key nodes in the network where aggregating packet loss data. The system dynamically measures speech quality and results are collected on a central server. For data analysis we applied four-state Markov model for modeling the impact of network impairments on speech quality, afterwards, the resilient back propagation (Rprop) algorithm was used to train a neural network. Information about the speech quality are displayed in the form of automatically generated graphs and tables. The proposed solution has been tested with selected codecs and further generalizes the already presented concepts of the speech quality estimation in the IP environment.
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Orcik, L., Voznak, M., Rozhon, J. et al. Prediction of Speech Quality Based on Resilient Backpropagation Artificial Neural Network. Wireless Pers Commun 96, 5375–5389 (2017). https://doi.org/10.1007/s11277-016-3746-2
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DOI: https://doi.org/10.1007/s11277-016-3746-2