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This paper presents a preliminary study of quality of experience (QoE) of VoIP that are provided as social network services using Perceptual Evaluation of Speech Quality (PESQ) with Thai and Chinese speech samples. This study focuses on VoIP quality of the free call feature from Facebook and LINE, which are the popular social network site and the popular social network application for Thai users respectively...
Different from traditional firms, online retailers do not often produce common goods on their own. On the contrary, they sell merchandises that traditional firms produce. Furthermore, online retailers are also different from traditional retailers because the former do not often have frontline employees, physical outlets, or displaying layouts. Therefore, when building a strong online retailer brand,...
Speech quality evaluation is a very important research topic. In addition, the real time property of packet-switched network (e.g., the Internet) applications requires a fast and effective audio quality evaluation method. Mean opinion score (MOS) is reliable, but the listening test is very expensive, time-consuming, and sometimes impractical. The existing objective quality assessment methods require...
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