Perceptual evaluation and acoustic analysis of pneumatic artificial larynx

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
Jie Jie XuMing Zhe Qiao

Abstract

To investigate the perceptual and acoustic characteristics of the pneumatic artificial larynx (PAL) and evaluate its speech ability and clinical value. Prospective study. The study was conducted in the Voice Lab, Department of Otorhinolaryngology, The First Affiliated Hospital of Nanjing Medical University. Forty-six laryngectomy patients using the PAL were rated for intelligibility and fluency of speech. The voice signals of sustained vowel /a/ for 40 healthy controls and 42 successful patients using the PAL were measured by a computer system. The acoustic parameters and sound spectrographs were analyzed and compared between the two groups. Forty-two of 46 patients using the PAL (91.3%) acquired successful speech capability. The intelligibility scores of 42 successful PAL speakers ranged from 71 to 95 percent, and the intelligibility range of four unsuccessful speakers was 30 to 50 percent. The fluency was judged as good or excellent in 42 successful patients, and poor or fair in four unsuccessful patients. There was no significant difference in average fundamental frequency, maximum intensity, jitter, shimmer, and normalized noise energy (NNE) between 42 successful PAL speakers and 40 healthy controls, while the maximum phona...Continue Reading

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Citations

Aug 19, 2016·American Journal of Speech-language Pathology·Jia-Shiou Liao
Feb 23, 2021·International Journal of Speech-language Pathology·Manwa L Ng, Hong K Woo
Jun 23, 2021·American Journal of Speech-language Pathology·Chen-Chi WangYi-Hsuan Lo
Jul 7, 2021·Journal of Voice : Official Journal of the Voice Foundation·Chen-Chi WangYi-Hsuan Lo

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