Title :
Assessing voice quality in packet-based telephony
Author :
Janssen, Jan ; De Vleeschauwer, Danny ; Büchli, Maarten ; Petit, Guido H.
Abstract :
Our goal is to extend recommendations ITU-T G.114 and G.131 to cover distorted phone calls transported (partly) over a packet-based network. We assume the user terminals to be optimally tuned and focus on how network parameters-delay, packet loss, jitter, and so on-influence voice quality. We then discuss how those parameters can be quantified and incorporated into a model that lets us predict the quality of any packet-based phone call
Keywords :
Internet telephony; delays; echo; jitter; telecommunication standards; ITU-T G.114; ITU-T G.131; codec type; delay; distorted phone calls; echo; jitter; optimally tuned user terminals; packet loss; packet-based network; packet-based telephony; voice quality assessment; Bit rate; Codecs; Delay effects; Encoding; IP networks; Packet switching; Propagation delay; Signal processing; Signal processing algorithms; Telephony;
Journal_Title :
Internet Computing, IEEE
DOI :
10.1109/MIC.2002.1003131
