Receiver-based packet loss concealment for pulse code modulation (PCM G.711) coder

Authors:
Maha Elsabrouty;Martin Bouchard;Tyseer Aboulnasr
Affiliations:
School of Information Technology and Engineering, University of Ottawa, Ottawa, Canada K1N 6N5;School of Information Technology and Engineering, University of Ottawa, Ottawa, Canada K1N 6N5;School of Information Technology and Engineering, University of Ottawa, Ottawa, Canada K1N 6N5
Venue:
Signal Processing
Year:
2004

Citing 2
Cited 0

Perceptual evaluation of speech quality (PESQ)-a new method for speech quality assessment of telephone networks and codecs

ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02
Internet telephony: services, technical challenges, and products

IEEE Communications Magazine

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Abstract

This paper introduces a high-performance concealment algorithm for packetized PCM-coded speech as in ITU-T Recommendation G.711. The proposed prediction algorithm implements a combination of linear prediction model and reverse-order replicated pitch period technique as implemented in the ITU-T G.711 Appendix A (ITUT Recommendation G.117, November 2000). The new algorithm is compared to the ITU-T G.711 Appendix A standard and to the commercial tool of packet repetition. It is shown to produce better concealment quality in almost all cases.