Measures of phonation type in Hmong
作者:
Marie K. Huffman,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1987)
卷期:
Volume 81,
issue 2
页码: 495-504
ISSN:0001-4966
年代: 1987
DOI:10.1121/1.394915
出版商: Acoustical Society of America
数据来源: AIP
摘要:
This study examines measures of glottal flow for vowels of Hmong, a Southeast Asian language which uses breathy and normal phonation contrastively. A software inverse filter was used to recover glottal airflow from oral airflow recordings. Properties of glottal flow measured in the time domain were glottal pulse symmetry and relative closed‐phase duration. In the frequency domain, measures of spectral tilt and the amplitude difference betweenF0 andH2 were applied to discrete Fourier transforms (DFTs) of the glottal flow waveforms. Spectral tilt could not be reliably measured for many tokens. For the other measures, values were available for all tokens and were compared across phonation types. Flow pulse symmetry is not significantly different for breathy and normal‐voice vowels. On the other hand, prominence of the fundamental relative to the second harmonic is a very significant correlate of the breathy/normal distinction, as is the relative closed‐phase duration. These results are considered in light of an existing model of the voice source.
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