MMSE estimation of log-filterbank energies for robust speech recognition

  title={MMSE estimation of log-filterbank energies for robust speech recognition},
  author={Anthony P. Stark and Kuldip K. Paliwal},
  journal={Speech Communication},
In this paper, we derive a minimum mean square error log-filterbank energy estimator for environment-robust automatic speech recognition. While several such estimators exist within the literature, most involve trade-offs between simplifications of the log-filterbank noise distortion model and analytical tractability. To avoid this limitation, we extend a well known spectral domain noise distortion model for use in the log-filterbank energy domain. To do this, several mathematical… CONTINUE READING
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