Abstract:Background: This study compared formant frequencies in vowel production among children with different degrees of hearing loss (HL) and normal hearing. Methods: This study was carried out on 40 children with different degrees of HL (moderate, moderate to severe, severe, and profound). Forty age (7 to 9 years old) and gender (22 males and 18 females) matched children with normal hearing were included. After collecting acoustic data during vowel production (/a/i/,/u/) for 3 seconds, the mean of the F1 and F2 were… Show more
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