A comparative study of packet loss concealment for Bluetooth CVSD codec

Author

Sun, Xuejing ; Yen, Kuan-Chieh

fYear

2011

fDate

11-15 July 2011

Firstpage

1

Lastpage

4

Abstract

Voice communication over Bluetooth wireless links has seen increasingly popular usage in recent years. In practice, wireless voice transmission subjects to frequent packet loss and bit errors in adverse conditions, which significantly degrade voice quality. This paper describes a comparative study of packet loss concealment (PLC) algorithms for Bluetooth CVSD codec. Six algorithms were evaluated, which include zero insertion, hold, decoded domain PLC, coded domain PLC, decoded domain PLC with state update via copying, and a newly proposed decoded domain PLC with state update via decoding. Objective evaluations show that decoded domain PLC algorithms with state update are among the best performers.

Keywords

Bluetooth; codecs; decoding; delta modulation; speech coding; voice communication; Bluetooth CVSD codec; Bluetooth wireless links; bit errors; coded domain PLC; decoded domain PLC; decoding; packet loss concealment; state update; voice communication; voice quality; wireless voice transmission; zero insertion; Bluetooth; Complexity theory; Decoding; Estimation; Bluetooth; CVSD; Packet loss concealment (PLC); speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo (ICME), 2011 IEEE International Conference on

Conference_Location

Barcelona

ISSN

1945-7871

Print_ISBN

978-1-61284-348-3

Electronic_ISBN

1945-7871

Type

conf

DOI

10.1109/ICME.2011.6012059

Filename

6012059