Perceptual-Based Playout Mechanisms for Multi-Stream Voice over IP Networks

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概要

• 論文の詳細を見る

• Packet loss and delay are the major network impairments for transporting real-time voice over IP networks. In the proposed system, multiple descriptions of the speech are used to take advantage of the packet path diversity. A new objective method is presented for predicting the perceived quality of multi-stream voice transmission. Also proposed is a multi-stream playout buffer algorithm, together with an adaptive parameter adjustment scheme, that maximizes the perceived speech quality via delay-loss trading. Experimental results showed that, compared to FEC-protected single-path transmission, the proposed multi-stream transmission scheme achieves significant reductions in delay and packet loss rates as well as improved speech quality.

• （社）電子情報通信学会の論文
• 2011-05-01

著者

• Chang Wen-Whei

  Department of Communication Engineering National Chiao Tung University

• Wu Chun-feng

  Department Of Communications Engineering National Chiao-tung University

• CHIANG Yuan-Chuan

  Department of Special Education, National Hsinchu University of Education

• Chiang Yuan-chuan

  Department Of Special Education National Hsinchu University Of Education

関連論文

• AUTOMATED CRYPTANALYSIS OF BANDSPLITTER-BASED SPEECH SCRAMBLERS
• A Binary Channel Characterization Using Genetic Algorithm
• Memory-Enhanced MMSE Decoding in Vector Quantization(Speech and Hearing)
• Perceptual-Based Playout Mechanisms for Multi-Stream Voice over IP Networks

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