Packet loss concealment with natural variations using HMM

Manohar N. Murthi; Christoffer A. Rødbro; Søren Vang Andersen; Søren Holdt Jensen

Packet loss concealment with natural variations using HMM

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

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

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 language	English (US)
Title of host publication	2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
Pages	I21-I24
State	Published - Dec 1 2006
Event	2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France Duration: May 14 2006 → May 19 2006

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	1
ISSN (Print)	1520-6149

Other

Other	2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
Country	France
City	Toulouse
Period	5/14/06 → 5/19/06

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

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Cite this

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

2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings. 2006. p. I21-I24 1659947 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Murthi, MN, Rødbro, CA, Andersen, SV & Jensen, SH 2006, Packet loss concealment with natural variations using HMM. in 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings., 1659947, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 1, pp. I21-I24, 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006, Toulouse, France, 5/14/06.

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