2009/09/15 by Emine Zerrin Sakir, Sakir, Emine Zerrin, Christian Feldbauer +1
Computer Science · #FOS: Computer and information sciences #Multimedia (cs.MM) #Video Analysis and Summarization #cs.MM
paper · pdf · doi:10.48550/arxiv.0909.2816
6 pages
arxiv created 2009/09/15 · openalex publication_date 2009/09/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Playout buffers are used in VoIP systems to compensate for network delay jitter by making a trade-off between delay and loss. In this work we propose a playout buffer algorithm that makes the trade-off based on maximization of conversational speech quality, aiming to keep the computational complexity lowest possible. We model the network delay using a Pareto distribution and show that it is a good compromise between providing an appropriate fit to the network delay characteristics and yielding a low arithmetical complexity. We use the ITU-T E-Model as the quality model and simplify its delay impairment function. The proposed playout buffer algorithm finds the optimum playout delay using a closed-form solution that minimizes the sum of the simplified delay impairment factor and the loss-dependent equipment impairment factor of the E-model. The simulation results show that our proposed algorithm outperforms existing state-of-the-art algorithms with a reduced complexity for a quality-based algorithm.