Perceptual-based playout mechanisms for multi-stream voice over IP networks

Chun Feng Wu*, Yung Le Chang, Wen-Whei Chang

*Corresponding author for this work

研究成果: Conference article同行評審


Packet loss and delay are two essential problems to realtime voice transmission over IP networks. In the proposed system, multiple descriptions of the speech are transmitted to take advantage of largely uncorrelated delay and loss characteristics on different network paths. Adaptive playout scheduling of multiple voice streams is formulated as an optimization problem leading to a better delay-loss tradeoff. Also proposed is a perceptually motivated optimization criterion based on a simplified version of the ITU-T E-model. Experimental results show that the proposed multi-stream playout algorithm improves the delay-loss tradeoff as well as speech reconstruction quality.

頁(從 - 到)1087-1091
期刊European Signal Processing Conference
出版狀態Published - 1 十二月 2009
事件17th European Signal Processing Conference, EUSIPCO 2009 - Glasgow, United Kingdom
持續時間: 24 八月 200928 八月 2009

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