Session 4aSCb Speech Communication: Acoustics of Speech Production and Acoustic Signal Processing (Poster Session)

This paper focuses on the acoustic features in the contrast between two pairs of phonemically distinctive diphthongs in Hainan Cham, /ai/ versus / a:i/ and /au/ versus /a:u/. The data from six native speakers of Hainan Cham show that the overall duration of long diphthongs does not statistically dif...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2011-10, Vol.130 (4), p.2520-2525
Main Author: Jun, S-A
Format: Article
Language:English
Subjects:
Acoustics
Americas
Offsets
Signal processing
Speech
Online Access:Get full text
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Summary:This paper focuses on the acoustic features in the contrast between two pairs of phonemically distinctive diphthongs in Hainan Cham, /ai/ versus / a:i/ and /au/ versus /a:u/. The data from six native speakers of Hainan Cham show that the overall duration of long diphthongs does not statistically differ from the overall duration of short diphthongs. The differences, instead, lie in the durational differences between onsets and offsets. In Hainan Cham, the long diphthong onsets are longer than the short diphthong onsets, while their offsets are shorter. The transition duration does not differentiate short and long diphthongs. In Hainan Cham, it occupies only 25-34% of the duration of the whole diphthong, short or long. Another acoustic feature examined in diphthongs is the range and rate of F2 change. In Hainan Cham, /ai/ is well differentiated from /a:i/: The short diphthong /ai/ has a greater F2 range of change and a faster F2 rate of change than the long diphthong /a:i/. However, /au/ and /a:u/ have very similar F2 rate of change.
ISSN:0001-4966