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KMID : 1022420140060040189
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Phonetics and Speech Sciences
2014 Volume.6 No. 4 p.189 ~ p.194
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Acoustic characteristics of Motherese
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Shim Hee-Jeong
Lee Geon-Jae
Hwang Jin-Kyung
Ko Do-Heung
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Abstract
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Objective: This study aims to investigate the speech rate, the length of a pause, habitual pitch, and voice intensity ofmotherese.
Subjects and Methods: The research participants comprised 20 mothers (mean age 33 years). Speech data werecollected and analyzed using the Real-time Pitch software (KayPENTAX®).
Results: The average speech rate was 5.33syllables per second without their infant present and 4.26 syllables per second with their infant present. The average pauselength was 1.09 s without their infant present and 1.56 s with their infant present. The average habitual pitch was 199.79 Hzwithout their infant present and 227.15 Hz with their infant present. The average voice loudness was 61.09 dB without theirinfant present and 64.49 dB with their infant present.
Conclusion: This study presented clinical information for efficientlymanaging the speech therapy issues of infants and children. This includes proper acoustic and phonological information torecommend to main caregivers.
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KEYWORD
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habitual pitch, loudness, motherese, overall speech rate, pause duration
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