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The effect of palatal height on the Korean vowels

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Á¤º¸À± ( Chung Bo-Yoon ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø
ÀÓ¿µÁØ ( Lim Young-Jun ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
±è¸íÁÖ ( Kim Myung-Joo ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç
³²½ÅÀº ( Nam Shin-Eun ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ±¸°­ÇغÎÇб³½Ç
À̽ÂÇ¥ ( Lee Seung-Pyo ) - ¼­¿ï´ëÇб³ Ä¡ÀÇÇдëÇпø ±¸°­ÇغÎÇб³½Ç
±ÇÈ£¹ü ( Kwon Ho-Beom ) - ¼­¿ï´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Ã¶Çб³½Ç

Abstract

¿¬±¸¸ñÀû : ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº Çѱ¹ ¼ºÀÎ ³²³à À¯Ä¡¾ÇÀÚ¸¦ ´ë»óÀ¸·Î ±¸°³ÀÇ ³ôÀÌ°¡ Çѱ¹¾î ¸ðÀ½ ¹ßÀ½¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ´Â °ÍÀÌ´Ù.

¿¬±¸ Àç·á ¹× ¹æ¹ý: ¹ßÀ½, û·Â ¹× ÀÇ»ç¼ÒÅë¿¡ ¹®Á¦°¡ ¾ø°í À½¼º °ü·Ã º´·ÂÀÌ ¾ø´Â 23¼¼ºÎÅÍ 40¼¼±îÁöÀÇ °Ç°­ÇÑ Çѱ¹ÀÎ ³²³à 41¸íÀÌ ¿¬±¸¿¡ Âü¿©ÇÏ¿´´Ù. ÇÇÇèÀÚµéÀÇ Àλó äµæ ÈÄ Á¦ÀÛµÈ ¿¬±¸¸ðÇüÀ» °¡Áö°í ±¸°³ Æø°ú ±íÀ̸¦ °í·ÁÇÏ¿© ÇÇÇèÀÚµéÀ» ±¸°³ ³ôÀÌ Á¤µµ¿¡ µû¶ó °í, Áß, Àú ¼¼ ±ºÀ¸·Î ±¸ºÐÇÏ¿´´Ù. ÇÇÇèÀڵ鿡°Ô 7°¡ÁöÀÇ Çѱ¹¾î ¸ðÀ½À» ¹ßÀ½Çϵµ·Ï ÇÏ¿© ³ìÀ½ÇÏ°í, À½ÇâÇÐÀû ºÐ¼® ÇÁ·Î±×·¥À» ÀÌ¿ëÇÏ¿© ¸ðÀ½µéÀÇF1 Æ÷¸ÕÆ®¿ÍF2 Æ÷¸ÕÆ®¸¦ »êÃâÇÏ¿´´Ù. /¤¿,¤Ó,¤Ì/ ¼¼ ¸ðÀ½ÀÇ Æò±Õ Æ÷¸ÕÆ® °ªÀ» ÀÌ¿ëÇÏ¿© ¸ðÀ½ °ø°£ »ï°¢ÇüÀ» ÀÛ¼ºÇÏ¿´´Ù. ±¸°³ ³ôÀÌ¿¡ µû¶ó ºÐ·ùÇÑ ¼¼ ±º °£¿¡ Æ÷¸ÕÆ®ÀÇ Â÷ÀÌ¿Í ¸ðÀ½ °ø°£ »ï°¢ÇüÀÇ ¸éÀû Â÷ÀÌ°¡ ÀÖ´ÂÁö ºÐ¼®ÇÏ¿´´Ù. Åë°è¹æ¹ýÀ¸·Î Kruskal-Wallis °ËÁ¤°ú Mann-Whiteny U °ËÁ¤ÀÌ »ç¿ëµÇ¾ú´Ù (P< .05).

°á°ú : ±¸°³ ³ôÀÌ¿¡ µû¸¥ ¼¼ ±º °£¿¡¼­´Â /¤Ó/ ¸ðÀ½¿¡¼­ F2 Æ÷¸ÕÆ®ÀÇ °ª¸¸ Â÷ÀÌ°¡ ÀÖ¾ú°í (P = 0.003), /¤Ó/¸¦ Á¦¿ÜÇÑ ´Ù¸¥ ¸ðÀ½¿¡¼­ Æ÷¸ÕÆ® °ªÀº Â÷ÀÌ°¡ ¾ø¾ú´Ù. Æò±Õ Æ÷¸ÕÆ® ÁÖÆļö¸¦ ÁÂÇ¥°ªÀ¸·Î ÀÌ¿ëÇÑ ¸ðÀ½ °ø°£ »ï°¢ÇüÀº ¼¼ ±º ¸ðµÎ ºñ½ÁÇÑ ¸ð¾çÀ» ³ªÅ¸³»¾ú°í ¸éÀûÀº ¼¼ ±º °£¿¡ À¯ÀÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù (P = 0.096).

°á·Ð : /¤Ó/ ¸ðÀ½À» Á¦¿ÜÇÏ°í´Â ±¸°­ ³» ÇغÎÇÐÀû ±¸Á¶ Â÷ÀÌ°¡ Á¸ÀçÇصµ ±¸°³ ³ôÀÌ¿¡ µû¶ó ºÐ·ùÇÑ ÇÇÇèÀÚ°£ ¸ðÀ½ÀÇ ¹ßÀ½Â÷ÀÌ°¡ ¾ø¾ú°í ¹ßÀ½¸í·áµµÀÇ Â÷À̵µ ¾ø¾î ±¸°³ ³ôÀÌ¿¡ ´ëÇØ ÇôÀÇ º¸»óÀÛ¿ëÀÌ ¾î´À Á¤µµ Á¸ÀçÇÏ´Â °ÍÀ¸·Î ÆǴܵȴÙ.

Purpose: The purpose of this study was to analyze the influence of palatal height on Korean vowels and speech intelligibility in Korean adults and to produce baseline data for future prosthodontic treatment.

Materials and Methods : Forty one healthy Korean men and women who had no problem in pronunciation, hearing, and communication and had no history of airway disease participated in this study. Subjects were classified into H, M, and L groups after clinical determination of palatal height with study casts. Seven Korean vowels were used as sample vowels and subjects¡¯ clear speech sounds were recorded using Multispeech software program on computer. The F1 and the F2 of 3 groupswere produced and they were compared. In addition, the vowel working spaces of 3 groups by /a/, /i/, and /u/ corner vowels were obtained and their areas were compared. Kruskal-Wallis test and Mann-Whiteny U test were used as statistical methods and P < .05 was considered statistically significant.

Results: There were no significant differences in formant frequencies among 3 groups except for the F2 formant frequency between H and L group (P = .003). In the analysis of vowel working space areas of 3 groups, the vowel working spaces of 3 groups were similar in shape and no significant differences of their areas were found.

Conclusion: The palatal height did not affect vowel frequencies in most of the vowels and speech intelligibility. The dynamics of tongue activity seems to compensate the morphological difference.

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Palatal height;Vowel;formant;Vowel working space

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KCI
KoreaMed