한국어 어두 파열음과 비음 판별에 F0와 VOT가 미치는 영향: 경상방언 화자 대상
Effects of F0 and VOT on Korean Word-Initial Oral and Nasal Stop Identification: Evidence from Kyungsang Speakers
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초록
이 논문은 경상 방언 화자가 어두에 위치하는 비음과 파열음을 인지하는데 어떤 음향단서를 사용하는지를 살펴본다. 경상방언은 위에서 언급한 어두 파열음의 음성적 실현과 어두 비음의 탈비음화 현상에서 서울표준어와 차이가 있다고 알려져 있다. 결과는 평음과 격음의 식별과, 비음과 경음의 식별에도 F0 단서가 결정적이며, VOT 단서는 경음의 인지에 결정적인 역할을 하는 것으로 나타났다. 비음의 92%는 자음 비음 부분이 없어도 정확하게 식별되었고, 비음 뒤에 오는 모음의 F0 값을 50Hz 높이자 비음이 98% 경음으로 인지되었다. 결과는 서울표준어와 마찬가지로 F0가 어두 파열음과 비음의 인지에 결정적인 역할을 함을 보여준다.
Abstract
This paper examines how Kyungsang speakers utilize acoustic cues to identify the word-initial oral and nasal stops by presenting them acoustically manipulated stimuli in the perception test. The results show that F0 is a major acoustic cue for the distinction between nasal and tense stops as well as between lax and aspirated stops, and that VOT is a major cue for the identification of tense stops but not for lax or aspirated stops. 92% of nasals are correctly identified even without their consonantal nasal portion and 98% of nasals are perceived as tense stops only from raising F0 of the following vowel. The results are consistent with Ahn(2019)’s study on Seoul speakers.
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