Second and third order adaptable threshold for VAD in VoIP

Author

Sangwan, Abhijeet ; Jamadagni, H.S. ; Chiranth, M.C. ; Sah, Rahul ; Prasad, R. Venkatesha ; Gaurav, Vishal

Author_Institution

Dept. of Electron. & Commun., Indian Inst. of Sci., Bangalore, India

Volume

2

fYear

2002

fDate

26-30 Aug. 2002

Firstpage

1693

Abstract

Reducing the Internet traffic is a requirement to share the bandwidth with many sessions. When circuit switched applications are ported on to the Internet, bandwidth saving becomes all the more prominent. An efficient adaptable threshold VAD (voice activity detection) for voice over IP systems is presented in this paper. The discussion includes two energy-based algorithms with higher order threshold refreshing schemes. The performance of all the schemes is presented, and the results bring out clearly the usefulness of the schemes for VoIP applications with saving in bandwidth.

Keywords

Internet; Internet telephony; bandwidth allocation; telecommunication congestion control; telecommunication traffic; Internet traffic; VAD; VoIP; bandwidth sharing; circuit switched applications; energy-based algorithms; performance; second order adaptable threshold; third order adaptable threshold; threshold refreshing; voice activity detection; Background noise; Bandwidth; Communication switching; Computational complexity; Internet telephony; Payloads; Real time systems; Speech; Switching circuits; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2002 6th International Conference on

Print_ISBN

0-7803-7488-6

Type

conf

DOI

10.1109/ICOSP.2002.1180127

Filename

1180127