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KMID : 1036820170220030608
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Communication Sciences & Disorders
2017 Volume.22 No. 3 p.608 ~ p.614
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Influence of Real Ear Resonance on Male Voice Formant Frequency
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Heo Seung-Deok
Kang Hui-Ra
Ko Do-Heung
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Abstract
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Objectives: Voice in the external auditory canal (EAC) is expected to change while being affected by the resonance of the concha cavity and the EAC. Acoustical analysis should in-clude the frequency range of EAC resonance. This study aims to determine the influence of the resonance of the EAC by analyzing formant.
Methods: Male voiced monophthongs were used in this study; the most frequently used vowels were /a/, /i/, /u/, /e/, /o/. Experimental voice in the real ear and sound field was recorded by 12 healthy young female subjects. Voice characteristics were analyzed by Praat (ver. 6.0.19). The formant frequency of the sample and experimental voice were analyzed with descriptive statistics. The relationship between the sample voice and experimental voice was analyzed by a paired t-test.
Results: The voices between the sound field and real ear demonstrated significant differences at F3 and F4 of /a/, F2, F3, and F4 of /i/, all formant frequencies of /u/, F2 and F4 of /e/, and F1, F3, and F4 of /o/ (p <.05).
Conclusion: Voice in the real ear is collected under the influence of resonances, distance from the sound source, and rounding. Understanding these changes is expected to improve the analysis of timbre and individual voices and speech understanding.
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KEYWORD
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Formant, Resonance, External auditory canal
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