Title :
Objective evaluation of voice clarity measurements for VoIP compression algorithms
Author :
Zurek, Eduardo E. ; Leffew, James ; Moreno, Wilfrido A.
Author_Institution :
Univ. of South Florida, Tampa, FL, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
This paper contains a review of objective measurements for VoIP compression algorithms. An overview of VoIP networks is presented along with a description of the main characteristics of ITU-T G.729 and G.723.1 standards. PSQM, PAMS, and PESQ measurements for voice clarity are reviewed, and an explanation of the application of perceptual models for the objective measurement of voice clarity is presented. The factors that affect voice quality, delay, echo, and clarity, are discussed briefly.
Keywords :
Internet telephony; data compression; speech coding; speech intelligibility; telecommunication standards; G.723.1; G.729; ITU-T standard; PAMS; PESQ; PSQM; VoIP compression algorithm; VoIP network; delay; echo; objective measurement; perceptual model; voice quality; Bandwidth; Compression algorithms; Digital signal processing; Encapsulation; IP networks; Internet telephony; Laboratories; Protocols; Pulse modulation; Signal processing;
Conference_Titel :
Devices, Circuits and Systems, 2002. Proceedings of the Fourth IEEE International Caracas Conference on
Print_ISBN :
0-7803-7380-4
DOI :
10.1109/ICCDCS.2002.1004116
