음성음운형태론연구 29집 3호 Yu, Hye Jeong

2024.01.31 09:15

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English has two liquid sounds, /ɹ/ and /l/, whereas Korean uses only one liquid sound,

/l/. Furthermore, English allows for the consonant cluster /ɹl/ in coda position, while

Korean does not permit any consonant clusters. This study investigated the acoustic

characteristics of the English word-final cluster /ɹl/ as produced by Korean learners of

English and compared them with those of native speakers of American English.

Several acoustic parameters were measured, including the duration of vocalic nuclei

containing the /ɹl/ cluster and the preceding vowel, and three formants (F1, F2, and

F3) at specific intervals (5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and

95%) throughout the vocalic nuclei. While English speakers always produced the two

liquids /ɹ/ and /l/ within the /ɹl/ cluster, Korean learners did not always exhibit them.

Overall, Korean learners produced [ɹ] more frequently, followed by [ɹl] and [l].

Furthermore, a correlation was also found between English proficiency and

production of the /ɹl/ cluster. Korean learners with advanced English proficiency

produced [ɹl] more frequently than those with intermediate English proficiency. In

addition, English speakers tended to produce an ɹ-colored vowel and [l] more

frequently than the sequence [ɹ] and [l]. This pattern was also observed in Korean

learners with advanced English proficiency. While Korean learners at the advanced

English level tended to produce a dark [ɫ] in the /ɹl/ cluster, similar to English

speakers, Korean learners at the intermediate English level did not do so.

Keywords

English liquid, /ɹl/ cluster, formant, dark [ɫ], Korean English learner

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