Improved packet loss recovery using late frames for prediction-based speech coders

Author

Gournay, Philippe ; Rousseau, François ; Lefebvre, Roch

Author_Institution

Dept. of Electr. & Comput. Eng., Sherbrooke Univ., Que., Canada

Volume

1

fYear

2003

fDate

6-10 April 2003

Abstract

The paper presents a method to improve the recovery of a speech decoder after the reception of one or several late frames. Rather than considering a late frame as "lost", we propose to use it in order to update the internal state of the decoder. This limits, and, in some cases, stops, the error propagation caused by the concealment. Evaluation results show that there is much to be gained in a voice over IP environment, where late frames can be used to improve the robustness against jitter without increasing the overall end-to-end delay.

Keywords

Internet telephony; decoding; delays; jitter; speech coding; vocoders; voice communication; end-to-end delay; error propagation; jitter; late frames; packet loss recovery; prediction-based speech coders; speech decoder; voice communications; voice over IP; Decoding; Delay; Internet telephony; Jitter; Propagation losses; Robustness; Speech analysis; Speech coding; Speech synthesis; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1198728

Filename

1198728