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Relationship between Vowel Sound Features and Pharyngeal Airway Cross-Sectional Area during Normal Breathing

文献类型： 会议论文

第一作者： Shumit Saha

作者： Shumit Saha 1 ; Keerthana Viswanathan 2 ; Nasim Montazeri Ghahjaverestan 2 ; Azadeh Yadollahi 2 ;

作者机构： 1.Institute of Biomaterial and Biomedical Engineering (IBBME), University of Toronto

2.Toronto Rehabilitation Institute, University Health Network

会议名称： Annual International Conference of the IEEE Engineering in Medicine and Biology Society

主办单位：

页码： 976-979

摘要： Assessment of the pharyngeal airway is becoming important for delivering personalized treatment and better management of sleep apnea. However, evaluation of the pharyngeal airway area is difficult in the current state of the art. It is essential to use simple and accessible technology to measure the pharyngeal airway area. As vowel sounds are generated by vocal cords vibration and characterized by the pharyngeal airway, vowel sounds have the potential to evaluate the pharyngeal airway area. The objective of this study was to investigate the relationship between acoustic features of vowel sounds and the pharyngeal airway cross-sectional area (PAXSA) between soft palate and glottis. Twenty subjects were included in this study whose PAXSA was measured by acoustic pharyngometry. Vowel sounds were recorded with a microphone while lying supine. Vowel sound average power was calculated in different frequency ranges of 100-3000 Hz, 100-500 Hz, 500-1000 Hz, 1000-1500 Hz, 1500-2000 Hz, 2000-2500 Hz and 2500-3000 Hz. Statistical analysis showed that the decreases in the PAXSA were strongly correlated with the higher average power of vowel sounds in all frequency ranges. These results showed that individuals with low PAXSA might articulate the vowel in higher intensity.

分类号： Q81-53

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