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IEICE TRANSACTIONS on Information

Phoneme Set Design for Speech Recognition of English by Japanese

Xiaoyun WANG, Jinsong ZHANG, Masafumi NISHIDA, Seiichi YAMAMOTO

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Summary :

This paper describes a novel method to improve the performance of second language speech recognition when the mother tongue of users is known. Considering that second language speech usually includes less fluent pronunciation and more frequent pronunciation mistakes, the authors propose using a reduced phoneme set generated by a phonetic decision tree (PDT)-based top-down sequential splitting method instead of the canonical one of the second language. The authors verify the efficacy of the proposed method using second language speech collected with a translation game type dialogue-based English CALL system. Experiments show that a speech recognizer achieved higher recognition accuracy with the reduced phoneme set than with the canonical phoneme set.

Publication
IEICE TRANSACTIONS on Information Vol.E98-D No.1 pp.148-156
Publication Date
2015/01/01
Publicized
2014/10/01
Online ISSN
1745-1361
DOI
10.1587/transinf.2014EDP7168
Type of Manuscript
PAPER
Category
Speech and Hearing

Authors

Xiaoyun WANG
  Doshisha University
Jinsong ZHANG
  Beijing Language and Culture University
Masafumi NISHIDA
  Doshisha University
Seiichi YAMAMOTO
  Doshisha University

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