ISCA Archive Interspeech 2006
ISCA Archive Interspeech 2006

Pronunciation verification of children²s speech for automatic literacy assessment

Joseph Tepperman, Jorge Silva, Abe Kazemzadeh, Hong You, Sungbok Lee, Abeer Alwan, Shrikanth Narayanan

Arguably the most important part of automatically assessing a new reader’s literacy is in verifying his pronunciation of read-aloud target words. But the pronunciation evaluation task is especially difficult in children, non-native speakers, and pre-literates. Traditional likelihood ratio thresholding methods do not generalize easily, and even expert human evaluators do not always agree on what constitutes an acceptable pronunciation. We propose new recognition- and alignment-based features in a decision tree classification framework, along with the use of prior linguistic information and human perceptual evaluations. Our classification methods demonstrate a 91% agreement with the voted results of 20 human evaluators who agree among themselves 85% of the time.

doi: 10.21437/Interspeech.2006-286

Cite as: Tepperman, J., Silva, J., Kazemzadeh, A., You, H., Lee, S., Alwan, A., Narayanan, S. (2006) Pronunciation verification of children²s speech for automatic literacy assessment. Proc. Interspeech 2006, paper 1814-Tue1WeS.8, doi: 10.21437/Interspeech.2006-286

  author={Joseph Tepperman and Jorge Silva and Abe Kazemzadeh and Hong You and Sungbok Lee and Abeer Alwan and Shrikanth Narayanan},
  title={{Pronunciation verification of children²s speech for automatic literacy assessment}},
  booktitle={Proc. Interspeech 2006},
  pages={paper 1814-Tue1WeS.8},