TY - GEN
T1 - Packet loss concealment of VoIP under severe loss conditions
AU - Ito, Akinori
AU - Nagano, Takeshi
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - G. 729
KW - Packet loss concealment
KW - VoIP
UR - http://www.scopus.com/inward/record.url?scp=84873477829&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873477829&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84873477829
SN - 9789860334074
T3 - International Symposium on Wireless Personal Multimedia Communications, WPMC
SP - 489
EP - 490
BT - 2012 15th International Symposium on Wireless Personal Multimedia Communications, WPMC 2012
T2 - 2012 15th International Symposium on Wireless Personal Multimedia Communications, WPMC 2012
Y2 - 24 September 2012 through 27 September 2012
ER -