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KMID : 0917519970010010315
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Journal of Speech Sciences
1997 Volume.1 No. 1 p.315 ~ p.323
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A Study on Pitch Perception of Normal Korean
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Jeong Ok-Ran
Kim Hyung-Soon
Kim Young-Tae
Suh Jang-Su
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Abstract
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This study attempts to determine the fundamental frequency level of male and female voices that Koreans perceive as normal. Seventy-three college students majoring in Speech Pathology participated in the study on a voluntary basis. The subjects listened to a male voice with fundamental frequency of 60 ㎐, 80 ㎐, 100 ㎐, 120 ㎐, 140 ㎐, 160 ㎐, 180 ㎐, and 200 ㎐, and a female voice with fundamental frequency of 140 ㎐, 160 ㎐, 180 ㎐, 200 ㎐, 220 ㎐, 240 ㎐, 260 ㎐, and 280 ㎐. The PSOLA (Pitch Synchronous Overlap) method and harmonic modeling method of speech signal were used to change pitch in the 20 ㎐ interval. The voices were presented in a random order to prevent listener bias. The results were as follows ; Firstly, 46.6% judged male voice with 120 ㎐ as normal, and 19.2% judged 140 ㎐ as normal, and another 19.2% judged 160 ㎐ as normal. Secondly, 50.7% perceived female voice with 220 ㎐ as normal, and 32.9% and 30.1% responded to 200 ㎐ and 240 ㎐, respectively. The problems and recommendations for a future investigation are discussed.
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