Analyzing the Effect of Playout Buffer Adjustment on Voice Quality for VoIP based Social-Network Applications
Neha Tiwari, O. P. Rishi · 2012
Socialnetworks are making the dream of real time group communicationa reality. Voice over Internet Protocol (VoIP)based social network applications are becoming popular but are also suffering fromQuality of Service (QoS) and Quality of Experience (QoE) issues.In order to add to its popularity and relianceVoIP based social network implementationsshould curtail on impairments like Delay, Jitter, Spiky delay, Packet loss and many other. The playout buffer of these VoIP based applications play significant role in maintaining the order and playout timing of voice packets.Many playout buffer algorithms are there that help in adjusting the buffer size and thus coping up with different impairments.This paper offers an analysis of different types of playout buffer algorithms and models available for evaluating the perceived speech quality.It also underlines the significance of enhancingthe playout buffer of VoIP based social network applications. Keywords-VoIP, VoIP impairments, delay, jitter, spiky delay, packet loss, social networks, playout buffer, playout buffer algorithms, voice quality assessment models.