Introduction to statistical pattern recognition (2nd ed.)
Introduction to statistical pattern recognition (2nd ed.)
Delivering voice over IP networks
Delivering voice over IP networks
Frame level noise classification in mobile environments
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 01
Performance evaluation and comparison of ITU-T/ETSI voice activity detectors
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
FuGeNeSys-a fuzzy genetic neural system for fuzzy modeling
IEEE Transactions on Fuzzy Systems
Internet telephony: services, technical challenges, and products
IEEE Communications Magazine
UMTS, the mobile multimedia vision for IMT 2000: a focus on standardization
IEEE Communications Magazine
A simulation study of adaptive voice communications on IP networks
Computer Communications
A robust voice activity detector for wireless communications using soft computing
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Non-intrusive single-ended speech quality assessment in VoIP
Speech Communication
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This paper proposes a variable rate, toll quality CS-ACELP coder that uses coding modes compatible with the three 6.4, 8 and 11.8 kbit/s coding schemes standardised by ITU-T in G.729. In particular we propose a hybrid multimode/ multirate (M3R) codec presenting four coding categories, with an average bit rate ranging between 3 and 8 kbit/s, that adapts the rate to changes in network conditions. The results indicate that both for the current Internet and for future scenarios hybrid M3R adaptive coding seems a valid solution to achieve the quality currently guaranteed by PSTN networks.