Non-intrusive single-ended speech quality assessment in VoIP
Speech Communication
Objective Assessment of Speech and Audio Quality—Technology and Applications
IEEE Transactions on Audio, Speech, and Language Processing
VoIP Quality Assessment: Taking Account of the Edge-Device
IEEE Transactions on Audio, Speech, and Language Processing
Voice quality prediction models and their application in VoIP networks
IEEE Transactions on Multimedia
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This paper describes novel parametric speech quality models which subsume the effect of packet loss distribution and voicing feature of missing signal waves. Speech quality estimate models for voiced and unvoiced loss location patterns are developed following multiple statistical regression analysis of measurements gathered from a built speech quality assessment framework. The overall speech quality is estimated by combining voiced and unvoiced speech quality estimate scores using an expression calibrated using a large number of speech samples. The input parameters namely, mean loss durations and ratios for voiced and unvoiced packets, of speech quality estimate models are extracted at run-time using a new voicing-aware packet loss Markov model. This chain, calibrated at run-time, finely models bursty packet loss behavior over voiced and unvoiced missing speech waves. Performance evaluation study shows that our voicing-aware speech quality estimate models clearly outperform voicing-agnostic speech quality models in terms of accuracy over a wide range of conditions.