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Updated: Aug 26, 2026

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
Published on: March 13, 2026
[A clinical application and study of analysis system of sound spectrography]
1Shanghai Putuo District Central Hospital, Shanghai 200062, China. Lijie18@public8.sta.net.cn
Objective:
The phonetic features were studied for non-velopharyngeal dysfunction in postoperative patients with cleft plate.
Methods:
The feature of velopharyngeal competency of 32 postoperative patients with cleft palate were analyzed with KAY-7800 sound spectrograph, compared with characteristic of 30 subjects with normal phonogram.
Results:
There were three types of abnormal phonogram for the postoperative patients of cleft palate with velopharyngeal competence. The heavy noise was a common sight.
Conclusion:
An analytic system of sound spectrography has certain value for evaluation of phonic function in cleft palate patients.
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