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| Study on voice quality in cleft palate children with hypernasality |
| ZHAO Fengyun1, DU Qing1,2, ZHOU Xuan1, CHEN Nan1, SONG Yanping2, WAN Qin3 |
| 1.Department of Rehabilitation Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China; 2.Department of Rehabilitation Medicine, Chongming Branch of Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 202150, China; 3.Department of Speech and Hearing Rehabilitation, East China Normal University, Shanghai 200062, China |
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Abstract Objective To analyze the voice quality characteristics of cleft palate children with different degrees of nasal hypernasality. Methods The subjects were 69 cleft palate children and 15 normal children, aged from 3 to 14 years. This study attempted to get four parameters through the sound /a/, which were jitter, shimmer, harmonics-to-noise ratio (HNR), and smoothed cepstral prominence peak (CPPs). The cleft palate could be divided into different degrees of nasal hypernasality through subject assessment. Results There were statistical differences in CPPs between normal children and moderate hypernasality (P=0.020) and severe hypernasality (P=0.010) cleft palate children. Conclusion Compared with normal children, the moderate and severe hypernasality cleft palate children are more likely to have breath sounds.
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