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2023
- handle: 10670/1.6gemq7
- isbn: 978-80-908 114-2-3
- hal: hal-04181598
info:eu-repo/semantics/OpenAccess
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Shigeko Shinohara et al., « An acoustic study of the fricative vowel in two endangered Ryukyuan languages », HAL-SHS : linguistique, ID : 10670/1.6gemq7
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This study investigates the acoustic properties of the fricative vowel of two varieties of Ryukyuan languages: Aragusuku Yaeyama (AR) and Karimata Miyako (KR) Ryukyuans. Ryukyuans are endangered languages spoken in the Southwest Islands of Japan. The phonetic properties of the fricative vowel have been an issue of debate. We aim to characterize the frication in the acoustic signals of this vowel. We compared the zero-crossing rates (ZCR) between the fricative vowel and the regular vowel /i/. The results indicated that the fricative vowel has frication noise superimposed on its formant structure in the 5-8 kHz region. This noise distinguished the fricative vowel from /i/ in AR but not in KR based on ZCR. Nevertheless, the fricative vowels in both languages have a similar quantity of frication noise. These results suggest that the fricative vowels in AR and KR have a similar acoustic profile to those reported in other languages.