ISCA Archive Eurospeech 1997
ISCA Archive Eurospeech 1997

An HMM-based phoneme recognizer applied to assessment of dysarthric speech

Xavier Menendez-Pidal, James B. Polikoff, H.Timothy Bunnell

This paper describes work on the development of an HMM-based system for automatic speech assessment, particularly of dysarthric speech. As a first step, we compare recognizer performance on a closed-set, forced choice identification test of dysarthric speech with performance on the same test by untrained listeners. Results indicate that HMM recognition accuracy averaged over all utterances of a dysarthric talker is well-correlated with measures of overall talker intelligibility. However, on an utterance-by-utterance basis, the pattern of errors obtained from the human subjects and the machine, while significantly correlated, accounts for, at best, only about 25 percent of the variance. Potential methods for improving this performance are considered.


doi: 10.21437/Eurospeech.1997-319

Cite as: Menendez-Pidal, X., Polikoff, J.B., Bunnell, H.T. (1997) An HMM-based phoneme recognizer applied to assessment of dysarthric speech. Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997), 1831-1834, doi: 10.21437/Eurospeech.1997-319

@inproceedings{menendezpidal97_eurospeech,
  author={Xavier Menendez-Pidal and James B. Polikoff and H.Timothy Bunnell},
  title={{An HMM-based phoneme recognizer applied to assessment of dysarthric speech}},
  year=1997,
  booktitle={Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997)},
  pages={1831--1834},
  doi={10.21437/Eurospeech.1997-319},
  issn={1018-4074}
}