Optimization of source and channel coding for voice over IP

  title={Optimization of source and channel coding for voice over IP},
  author={Yicheng Huang and Jari Korhonen and Ye Wang},
  journal={2005 IEEE International Conference on Multimedia and Expo},
  pages={4 pp.-}
Voice over Internet protocol (VoIP) applications must typically choose a tradeoff between the bits allocated for forward error correcting (FEC) and that for the source coding to achieve the best speech quality at a given packet loss rate. In this paper, we present a new scheme to optimize the speech quality subject to the bandwidth constraints and the packet loss rate. The scheme adopts adaptive multi-rate (AMR) speech codec along with a FEC scheme based on exclusive OR (XOR) operations… CONTINUE READING