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KMID : 0917519980040020115
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Journal of Speech Sciences
1998 Volume.4 No. 2 p.115 ~ p.139
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Assessments of Professional Voice
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Abstract
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The aim of this study is to develop an the assessment program for the singing voice which is based on the physiological and acoustic methods. 22 sopranos, 6 mezzo sopranos, 4 tenors and 4 baritones participated to these experiments.
The results measured by Visi-Pitch, spectrograph, and strobo-scope can be summarized as follows : (1) The maximum phonation time of singers must over 14 second higher with one deep inspiration (2) The parts classified by vocal range using Visi-Pitch: soprano between 167 Hz~1,190 Hz, mezzo soprano between 146 Hz~956 Hz, tenor between 75 Hz~503 Hz and baritone between 73 Hz and 385 Hz. (3) Longitudinal glottal size of singers decreases depending on the high-low pitch variation while lattitudinal glottal size increases depending on high-low pitch variation. (4) Well-trained singers show over 5 times the vibrato rate of untrained singers and regular pitch variation during measured periods. Vibrato´s intensity do not over 3dB. (5) Singer´s formant indicates professional voice depending on the each parts: 3,207 Hz for soprano, 3,057 Hz for mezzo soprano, 2,754 Hz for tenor and 2,560 Hz for baritone. (6) F_1 of singing voice is higher than that of speech while F_2 and F_3 of singing voice are lower than those of speech.
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