Variability in voice fundamental frequency of sustained vowels in speakers with sensorineural hearing loss

Guo She Lee*

*此作品的通信作者

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

In a previous study, the low-frequency modulation extent (LFP) of the vocal fundamental frequency (F 0) showed a significant increase in the presence of binaural noise masking for the healthy individuals. This study was to investigate the F 0 of subjects with sensorineural hearing loss (SNHL) using sustained phonations to explore the changes of F 0 modulations in SNHL. Twenty-three SNHL subjects and 14 age-matched subjects without hearing loss were enrolled in the study. Sustained vocalizations of vowel /a/ for more than 5 seconds were digitally recorded. The F 0 contour of each phonation was acquired using digital signal processing. The modulation extent at different frequencies was obtained using Fourier transformation of F 0 contour. The LFP of F 0 (<3 Hz) was significantly greater for the SNHL subjects (P < 0.001, independent samples t test). Although the correlation analysis was limited to the auditory-evoked brainstem response (ABR) thresholds because of their disagreement with the pure-tone thresholds in some subjects with functional hearing disorder, the correlation between LFP and ABR thresholds was significant (ρ = 0.45, P = 0.03, Spearman's correlation analysis). The LFPs of F 0 were significantly greater for the SNHL subjects and the changes of F 0 modulations could be detected using power spectral analysis of F 0. The method may be used for evaluation of audio-vocal feedback in SNHL.

原文English
頁(從 - 到)24-29
頁數6
期刊Journal of Voice
26
發行號1
DOIs
出版狀態Published - 1月 2012

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