UT-Vocal Effort II: Analysis and constrained-lexicon recognition of whispered speech

  title={UT-Vocal Effort II: Analysis and constrained-lexicon recognition of whispered speech},
  author={Shabnam Ghaffarzadegan and Hynek Boril and John H. L. Hansen},
  journal={2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
This study focuses on acoustic variations in speech introduced by whispering, and proposes several strategies to improve robustness of automatic speech recognition of whispered speech with neutral-trained acoustic models. In the analysis part, differences in neutral and whispered speech captured in the UT-Vocal Effort II corpus are studied in terms of energy, spectral slope, and formant center frequency and bandwidth distributions in silence, voiced, and unvoiced speech signal segments. In the… CONTINUE READING
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