@article{oai:phoenix.repo.nii.ac.jp:00001034,
 author = {苅安, 誠 and カリヤス, マコト and KARIYASU, Makoto},
 journal = {九州保健福祉大学研究紀要, Journal of Kyushu University of Health and Welfare},
 month = {Mar},
 note = {P(論文), The acoustic characteristics of cough production were investigated An acoustic analysis of cough productions of Japanese adult male subject showed that total duration ranged from 191 ms to 302 ms. Rise time was less than 50 ms Fundamental frequency (fo) was high at the beginning and fell toward the end of cough sound. Like a schwa, resonance frequencies associated with cough productions were almost equally spaced, implying unconstructed vocal tract (VT). The VT length was estimated based on the resonance frequencies and the comparisons were made with the VT length measurement based on an X-ray photography. The estimated VT length was consistent with the VT length measurement for the cough and schwa productions Acoustic features of cough production and future research directions are discussed.},
 pages = {217--221},
 title = {咳嗽の音響特性と声道長の推定},
 volume = {2},
 year = {2001},
 yomi = {カリヤス, マコト}
}