Title :
A comparison of packet loss concealment and control for voice transmission over IP network services
Author_Institution :
Telecommun. Dept., Univ. of Sci. & Technol. Houari Boumediene, Algiers, Algeria
Abstract :
This paper presents a comparison of end-to-end recovery and control methods for the ITU-T G.729 CS-ACELP codec operating at 8 Kbps. We have tested Media independent forward error correction (FEC) parity 3, Media independent FEC parity 4 and Media specific FEC combined with queue management methods namely Drop Tail, Predictive Loss Pattern (PLoP) and Random Early Detection (RED). The performance measures using perceptual evaluation of speech quality (PESQ) tests under various packet loss conditions prove that Media independent FEC parity 3 combined with RED algorithm give better results.
Keywords :
Internet telephony; forward error correction; queueing theory; speech codecs; FEC; ITU-T G.729 CS-ACELP codec; PESQ; PLoP; RED algorithm; bit rate 8 kbit/s; drop tail; media independent forward error correction; packet loss concealment; perceptual evaluation of speech quality; predictive loss pattern; queue management methods; random early detection; voice over IP network services; voice transmission control; Delays; Forward error correction; Media; Packet loss; Speech; Speech coding; G.729; PESQ; VoIP; end to end loss recovery; hop by hop recovery;
Conference_Titel :
Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2014 9th International Symposium on
Conference_Location :
Manchester
DOI :
10.1109/CSNDSP.2014.6923880
