A mixed excitation LPC vocoder model for low bit rate speech coding

@article{McCree1995AME,
  title={A mixed excitation LPC vocoder model for low bit rate speech coding},
  author={A. McCree and T. Barnwell},
  journal={IEEE Trans. Speech Audio Process.},
  year={1995},
  volume={3},
  pages={242-250}
}
  • A. McCree, T. Barnwell
  • Published 1995
  • Computer Science
  • IEEE Trans. Speech Audio Process.
  • Traditional pitch-excited linear predictive coding (LPC) vocoders use a fully parametric model to efficiently encode the important information in human speech. These vocoders can produce intelligible speech at low data rates (800-2400 b/s), but they often sound synthetic and generate annoying artifacts such as buzzes, thumps, and tonal noises. These problems increase dramatically if acoustic background noise is present at the speech input. This paper presents a new mixed excitation LPC vocoder… CONTINUE READING
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