Corpus ID: 1432307

Automatic phone set extension with confidence measure for spontaneous speech

  title={Automatic phone set extension with confidence measure for spontaneous speech},
  author={Y. Liu and Pascale Fung},
Extending the phone set is one common approach for dealing with phonetic confusions in spontaneous speech. We propose using likelihood ratio test as a confidence measure for automatic phone set extension to model phonetic confusions. We first extend the standard phone set using dynamic programming (DP) alignment to cover all possible phonetic confusions in training data. Likelihood ratio test is then used as a confidence measure to optimize the extended phonetic units to represent the acoustic… Expand
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