DocumentCode
586077
Title
Packet loss concealment of VoIP under severe loss conditions
Author
Ito, Akinori ; Nagano, Takeshi
Author_Institution
Dept. of Commun. Eng., Tohoku Univ., Sendai, Japan
fYear
2012
fDate
24-27 Sept. 2012
Firstpage
489
Lastpage
490
Abstract
This paper describes an outline of a project for developing a VoIP codec that can be used under a very severe communication environment where half of the packets drop. The codec is based on G.729 CS-ACELP, and a packet loss concealment (PLC) methods with redundant information will be used for enhancing speech quality. The result of a preliminary experiment for assessing importance of G.729 parameters is presented, where we found that parameters related to spectral shape and gain were relatively important.
Keywords
Internet telephony; codecs; speech enhancement; VoIP codec; packet loss concealment; redundant information; severe communication environment; severe loss condition; spectral shape; speech quality; G. 729; Packet loss concealment; VoIP;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Personal Multimedia Communications (WPMC), 2012 15th International Symposium on
Conference_Location
Taipei
ISSN
1347-6890
Print_ISBN
978-1-4673-4533-0
Type
conf
Filename
6398829
Link To Document