CEPSTRUM DOMAIN LAPLACE DENOISING

@inproceedings{Kristjansson2004CEPSTRUMDL,
  title={CEPSTRUM DOMAIN LAPLACE DENOISING},
  author={Trausti T. Kristjansson and Ramesh A. Gopinath},
  year={2004}
}
This paper introduces the Laplace algorithm for de-noising in the cepstrum domain with applications to speech recognition. Our method uses Gaussian mixture priors for clean speech and noise cepstra and assumes that speech and noise mix linearly in the spectrum domain. The Laplace algorithm involves two steps (a) computing the posterior mode of the observed noisy cepstra and (b) Gaussian approximation of the posterior around the mode. We show that the Algonquin algorithm is a special case of our… CONTINUE READING

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