Title :
Evaluation of Conversational Voice Communication Quality of the Skype, Google-Talk, Windows Live, and Yahoo Messenger Voip Systems
Author :
Sat, Batu ; Wah, Benjamin W.
Author_Institution :
Univ. of Illinois at Urbana-Champaign, Urbana
Abstract :
In this paper, we evaluate die conversational voice communication quality (CVCQ) of VoIP systems, both from the user and the system perspectives. We first identify the metrics for CVCQ, which include listening-only speech quality (LOSQ). conversational interactivity (CI), and conversational efficiency (CE). These depend on the mouth-to-ear delays (MEDs) between the two clients. Based on packet traces collected in the PlanetLab and on the dynamics of human interactive speech, we study four popular VoIP client systems: Skype (v2.5), Google-Talk (Beta), Windows Live Messenger (v8.0). and Yahoo Messenger with Voice (v8.0). under various network and conversational conditions.
Keywords :
Internet telephony; speech; voice communication; Google-Talk; LOSQ; PlanetLab; Skype; VOIP systems; Windows Live Messenger; Yahoo Messenger; conversational efficiency; conversational interactivity; conversational voice communication quality; human interactive speech dynamics; listening-only speech quality; mouth-to-ear delays; packet traces; Communication system control; Degradation; Delay effects; Encoding; Extraterrestrial measurements; Humans; IP networks; Jitter; Speech analysis; Testing;
Conference_Titel :
Multimedia Signal Processing, 2007. MMSP 2007. IEEE 9th Workshop on
Conference_Location :
Crete
Print_ISBN :
978-1-4244-1274-7
DOI :
10.1109/MMSP.2007.4412836
