Prosodic boundary tone classification with voice quality features

Voice quality features such as harmonic structure and spectral tilt are investigated in classifying vocalic segments into one of five boundary tones in the tones and break indices system. Static and nonstatic features are examined, and performance is compared with features related to duration, pitch...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2013-04, Vol.133 (4), p.1862-1866
Main Authors: Han, Ran, Choi, Jeung-Yoon
Format: Article
Language:English
Subjects:
Acoustics
Female
Humans
Male
Models, Statistical
Signal Processing, Computer-Assisted
Speech Acoustics
Speech Production Measurement
Time Factors
Voice Quality
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Description
Summary:Voice quality features such as harmonic structure and spectral tilt are investigated in classifying vocalic segments into one of five boundary tones in the tones and break indices system. Static and nonstatic features are examined, and performance is compared with features related to duration, pitch, and amplitude, along with adjacent segment characteristics. From statistical tests, voice quality features are found to be significant for classifying prosodic boundary tones, and especially for distinguishing low-tone boundaries. Classification results using features selected from Kruskal-Wallis tests, Akaike information criterion values, and from sequential forward search show that using voice quality features leads to lower balanced error rates.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4794392