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Issue No.01 - January-March (2009 vol.16)
pp: 46-59
Batu Sat , University of Illinois at Urbana-Champaign
Benjamin W. Wah , University of Illinois at Urbana-Champaign
ABSTRACT
<p>This article presents a technique for comparing the speech quality of VoIP systems on networks suffering from congestion.</p>
INDEX TERMS
Conversational speech quality, VoIP, subjective evaluation, Comparative Category Rating, play-out scheduling, loss concealment, interactivity, conversational efficiency, real-time multimedia communication.
CITATION
Batu Sat, Benjamin W. Wah, "Analyzing Voice Quality in Popular VoIP Applications", IEEE MultiMedia, vol.16, no. 1, pp. 46-59, January-March 2009, doi:10.1109/MMUL.2009.2
REFERENCES
1. B. Sat and B.W. Wah, "Analysis and Evaluation of the Skype and Google Talk VoIP Systems," Proc. IEEE Int'l Conf. Multimedia and Expo, IEEE CS Press, 2006.
2. B. Sat and B.W. Wah, "Evaluation of Conversational Voice Quality of the Skype, Google Talk, Windows Live, and Yahoo Messenger VoIP Systems," IEEE Int'l Workshop Multimedia Signal Processing, IEEE Press, 2007.
3. J.-C. Bolot, S. Fosse-Parisis, and D. Towsley, "Adaptive FEC-Based Error Control for Internet Telephony," Proc. IEEE Infocom, vol. 3, IEEE CS Press, 1999, pp. 1453-1460.
4. P.T. Brady, "Effects of Transmission Delay on Conversational Behavior on Echo-Free Telephone Circuits," Bell System Technical J., vol. 50, no. 1, 1971, pp. 115-134.
5. D.L. Richards, Telecommunication by Speech, Butterworths, 1973.
6. ITU-T G-Series Recommendations, Transmission Systems and Media, Digital Systems and Networks, Int'l Telecommunication Union; http://www. itu.int/rec/T-REC-Gen.
7. ITU-T P-Series Recommendations, Telephone Transmission Quality, Telephone Installations, Local Line Networks, Int'l Telecommunications Union; http://www.itu.int/rec/T-REC-Pen.
8. N. Kiatawaki and K. Itoh, "Pure Delay Effect on Speech Quality in Telecommunications," IEEE J. Selected Areas of Communication, vol. 9, no. 4, 1991, pp. 586-593.
9. C. Boutremans and J.-Y. Le Boudec, "Adaptive Joint Play-Out Buffer and FEC Adjustment for Internet Telephony," Proc. IEEE Infocom, vol. 1, IEEE CS Press, 2003, pp. 652-662.
10. C.-C. Chang and C.-J. Lin, "LIBSVM: A Library for Support Vector Machines," 2009; http://www. csie.ntu.edu.tw/~cjlin/papers libsvm.pdf.
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