ISCA Archive Interspeech 2008
ISCA Archive Interspeech 2008

Multi-accent and accent-independent non-native speech recognition

Ghazi Bouselmi, Dominique Fohr, Irina Illina

In this article we present a study of a multi-accent and accentindependent non-native speech recognition. We propose several approaches based on phonetic confusion and acoustic adaptation. The goal of this article is to investigate the feasibility of multi-accent non-native speech recognition without detecting the origin of the speaker. Tests on the HIWIRE corpus show that multiaccent pronunciation modeling and acoustic adaptation reduce the WER by up to 76% compared to results of canonical models of the target language. We also investigate accent-independent approaches in order to assess the robustness of the proposed methods to unseen foreign accents. Experiments show that our approaches correctly handle unseen accents and give up to 55% WER reduction, compared to the models of the target language. Finally, the proposed pronunciation modeling approach maintains the recognition accuracy on canonical native speech as assessed by our experiments on the TIMIT corpus.

doi: 10.21437/Interspeech.2008-670

Cite as: Bouselmi, G., Fohr, D., Illina, I. (2008) Multi-accent and accent-independent non-native speech recognition. Proc. Interspeech 2008, 2703-2706, doi: 10.21437/Interspeech.2008-670

  author={Ghazi Bouselmi and Dominique Fohr and Irina Illina},
  title={{Multi-accent and accent-independent non-native speech recognition}},
  booktitle={Proc. Interspeech 2008},