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[Vowel selection effects on the parameters of acoustic analysis]
1Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060.
Objective:
To investigate if there is difference about the parameters of acoustic analysis with the different vowel |a|, |i|, |ae| and decide which vowels is best fitted to the acoustic analysis.
Method:
40 normal and 130 pathologic voice patients accepted acoustic analysis. Each acoustic parameters such as jitter, shimmer, NNE, SDF0, SNR were compared with different vowels.
Result:
Jitter, shimmer, NNE with |i| were much lower than that with |a| and |ae| in normal cases and light hoarseness group. While the acoustic parameters with |i| were much higher than that with |a| and |ae| in moderate and heavy hoarseness group.
Conclusion:
|a| and |ae| were the preferred vowels for normal and light hoarseness group, while the |i| could supply some useful suggestion for the moderate and heavy hoarse patients.
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