Statistical estimation of unreliable features for robust speech recognition

  title={Statistical estimation of unreliable features for robust speech recognition},
  author={Philippe Renevey and Andrzej Drygajlo},
This paper addresses the problem of robust speech recognition in noisy conditions in the framework of hidden Markov models (HMMs) and missing feature techniques. It presents a new statistical approach to detection and estimation of unreliable features based on a probabilistic measure and Gaussian mixture model (GMM). In the estimation process, the GMM is compensated using parameters of the statistical model of additive background noise. The GMM means are used to replace the unreliable features… CONTINUE READING
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