Packet loss concealment with natural variations using HMM

Manohar Murthi, Christoffer A. Rødbro, Søren Vang Andersen, Søren Holdt Jensen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Packet loss concealment (PLC) at a receiver has a substantial effect on the speech quality in Voice over IP. Most conventional PLC systems have largely relied upon variations of signal repetition and overlap-add interpolation which can produce speech signals that do not follow the larger overall statistical trends. In this paper, we demonstrate how Hidden Markov Models can be utilized to effect PLC based on statistical signal processing. In particular, we show how HMM-based PLC yields conditional density functions that can be utilized by various statistical estimation methods that produce signal parameter estimates that produce more natural variation than conventional PLC methods, thereby providing much belter speech quality.

Original languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume1
StatePublished - Dec 1 2006
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
CountryFrance
CityToulouse
Period5/14/065/19/06

Fingerprint

Packet loss
Hidden Markov models
Probability density function
interpolation
signal processing
repetition
Interpolation
Signal processing
receivers
trends
estimates

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics

Cite this

Murthi, M., Rødbro, C. A., Andersen, S. V., & Jensen, S. H. (2006). Packet loss concealment with natural variations using HMM. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 1). [1659947]

Packet loss concealment with natural variations using HMM. / Murthi, Manohar; Rødbro, Christoffer A.; Andersen, Søren Vang; Jensen, Søren Holdt.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1 2006. 1659947.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Murthi, M, Rødbro, CA, Andersen, SV & Jensen, SH 2006, Packet loss concealment with natural variations using HMM. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 1, 1659947, 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006, Toulouse, France, 5/14/06.
Murthi M, Rødbro CA, Andersen SV, Jensen SH. Packet loss concealment with natural variations using HMM. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1. 2006. 1659947
Murthi, Manohar ; Rødbro, Christoffer A. ; Andersen, Søren Vang ; Jensen, Søren Holdt. / Packet loss concealment with natural variations using HMM. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 1 2006.
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