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KMID : 1004320150260020104
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Journal of the Korean Society of Logopedics and Phoniatrics
2015 Volume.26 No. 2 p.104 ~ p.111
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Feasibility of Galaxy Smartphone Recording as Portable Recorder for Acoustic Analysis of Voice
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Yun Mae-Hwa
Lee Jae-Hyuk
Lee Sang-Hyuk
Jin Sung-Min
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Abstract
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Background and Objectives : Acoustic analysis of voice could be influenced so much by the quality of voice files which were recorded by recording device. In clinical practice, voice files that were recorded by analysis program directly or portable digital recording device were analyzed mostly. This study examined the feasibility of using Galaxy smartphone recordings for acoustic analysis of voice.
Materials and Methods : Acoustic measures were compared between voice signals recorded from 30 normal speakers (15 males and 15 females) through Galaxy smartphone, portable digital recording device and CSL. Fo, jitter, shimmer, NHR (Noise-Harmony ratio) and Formant frequencies were analyzed by MDVP.
Results : Fo, Jitter, Shimmer, NHR and formant frequencies from 3 devices were no significantly difference. The intraclass correlation coefficient (ICC) was higher between each of the voice perturbation measures.
Conclusion : The findings indicated that Galaxy smartphone recording system was useful device for acoustic analysis of voice. Furthermore, Galaxy smartphone can be applied widely in various way for acoustic analysis of voice.
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KEYWORD
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Galaxy smartphone, Recording devices, Acoustic analysis
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