ISCA Archive Interspeech 2008
ISCA Archive Interspeech 2008

Schwa variants in american English

H. Timothy Bunnell, Jason Lilley

In this study, we examine the acoustic structure of schwa variants in a speech corpus intended for concatenative TTS. Our goals are two-fold. First, as a matter of academic interest, we seek to characterize schwa acoustics in a speech corpus designed to provide broad coverage of di- and tri-phone contexts. This characterization extends recent work on the distinction between the barred-i variant of schwa /1/ and the more central /@/ form of schwa [1]. Our second goal is to improve the concordance between our transcriptions as generated by the front-end of our TTS system, and the phonetic behavior of talkers who record corpora for concatenative TTS. Based on analysis of a single talker's corpus, our results support the claim in [1] that /1/ is more common than generally assumed. However, the claim that /1/ characterizes all stem-medial schwas is not well-supported by our data.

doi: 10.21437/Interspeech.2008-517

Cite as: Bunnell, H.T., Lilley, J. (2008) Schwa variants in american English. Proc. Interspeech 2008, 1959-1962, doi: 10.21437/Interspeech.2008-517

  author={H. Timothy Bunnell and Jason Lilley},
  title={{Schwa variants in american English}},
  booktitle={Proc. Interspeech 2008},