• 말소리와 음성과학
• /
• 제15권3호
• /
• pp.37-44
• /
• 2023

This study investigates perceptual confusions of English fricatives among 121 Korean elementary school English as a foreign language (EFL) learners with shorter periods of learning English. The objective is to examine how they perceive English fricative consonants and to provide educational guidelines. Two sets of English fricative identification tasks-voiceless fricatives and voiced fricatives-were administered to participants in a High Variability Phonetic Training (HVPT) setting. Their phonemic awareness of the fricatives was visualized in perceptual confusion maps via multidimensional scaling analysis. The findings are explored in terms of the impacts of Korean EFL learners' L1 linguistic aspects and a comparison with L1 learners. Learners' phonemic awareness patterns are then compared with their relative importance in speech intelligibility based on a functional load hierarchy. The results indicated that Korean elementary EFL learners recognized English fricatives in a manner largely akin to L1 learners, suggesting their ongoing acquisition progress. Additionally, the findings demonstrated that the young EFL learners possess sufficient phonemic awareness for most high functional load segments but encounter some difficulties with one high and one low functional pair. The findings of this study offer suggestions for diagnosing language learners' phonemic awareness abilities, thereby aiding in the development of practical guidelines for language instructional design and helping educators make informed decisions regarding teaching priority in L2 classes.

• 아시아태평양코퍼스연구
• /
• 제4권2호
• /
• pp.75-87
• /
• 2023

This paper presents a revised version of the vocabulary analyzer for self-reflection (VACSR), called VACSR v.2.0. The initial version of the VACSR automatically analyzes the occurrences and the level of vocabulary items in the transcribed texts, indicating the frequency, the unused vocabulary items, and those not belonging to either scale. However, it overlooked words with multiple parts of speech due to their identical headword representations. It also needed to provide more explanatory result tables from different corpora. VACSR v.2.0 overcomes the limitations of its predecessor. First, unlike VACSR v.1, VACSR v.2.0 distinguishes words that are different parts of speech by syntactic parsing using Stanza, an open-source Python library. It enables the categorization of the same lexical items with multiple parts of speech. Second, VACSR v.2.0 overcomes the limited clarity of VACSR v.1 by providing precise result output tables. The updated software compares the occurrence of vocabulary items included in classroom corpora for each level of the Common European Framework of Reference-Japan (CEFR-J) wordlist. A pilot study utilizing VACSR v.2.0 showed that, after converting two English classes taught by a preservice English teacher into corpora, the headwords used mostly corresponded to CEFR-J level A1. In practice, VACSR v.2.0 will promote users' reflection on their vocabulary usage and can be applied to teacher training.

• 한국콘텐츠학회논문지
• /
• 제13권9호
• /
• pp.455-466
• /
• 2013

본 연구의 목적은 지능형 로봇 IrobiQ를 활용한 유아용 학교폭력 예방교육 프로그램 [모두 지킴이]를 개발하는 것이다. 개발 내용은 첫째, 현장에서 실제 발생될 수 있는 폭력 유형인 집단 따돌림(왕따), 성폭력 그리고 기본 인성교육이다. 둘째, 각 주제에 적합한 활동형태는 대집단, 개별, 소집단, 자유선택활동 및 학교와 부모의 연계를 목적으로 하는 부모교육이다. 셋째, 활동유형은 동시, 동화, 동요, 미술, 이야기 나누기 등이다. 넷째, 콘텐츠는 이미지, TTS(text to speech), 터치기능, 음량인식기능 및 녹음기능 등을 활용하여 제작하였다. 본 콘텐츠를 유아에게 적용하고 30명의 전문가들을 대상으로 시연하여 수용성 설문을 실시한 결과, 긍정 반응을 보였다. 본 연구의 결과는 로봇을 활용한 학교 폭력 예방 프로그램의 효과를 최적화하기 위한 기초 자료로서 상호 작용성을 보다 증진시킬 수 있는 추후 연구를 제안한다.

• International Journal of Advanced Culture Technology
• /
• 제10권1호
• /
• pp.154-159
• /
• 2022

The purpose This study was conducted to explore the procedures and plans to establish a university-based lifelong education support system for the individuals with disabilities at Chosun University. The research method consisted of expert consultation. Chosun University not only has various units of major(department) that can deepen and integrate knowledge and technology related to lifelong education for the individuals with disabilities, but also has various leadership and various infrastructures that can lead the practice of lifelong education for the individuals with disabilities in Gwangju and Jeonnam areas. The contents of this study were presented five procedures and plans such as the establishment of maintenance and convergence of majors (departments) units, the development and operation of department-led regional-linked education programs through extracurricular education, the introduction of majors in connection with extracurricular education program-linked courses, the selection of core departments, the establishment of cooperative courses between university and graduate schools, and the establishment and operation of lifelong education programs for the individuals with disabilities centered on lifelong education centers. As a result of the study, it was analyzed that the academic foundation of lifelong education for the individuals with disabilities, the guarantee of educational opportunities for the individuals with disabilities, and the lead of linkage between local related organizations can be expected through the establishment of the support system for lifelong education for the individuals with disabilities at Chosun University.

• 공학교육연구
• /
• 제20권3호
• /
• pp.3-12
• /
• 2017

This research points out the necessity of customized communication education for engineering students in the era of the Fourth Industrial Revolution. This paper also points out such problems of current communication education as presentation and discussion-focused 'Public Speech' exercises, absence of interests about social issues, and lack of interactive communication learning. In general, as the characteristics of their major education, engineering students are not aggressive in self-questioning and active communication rather than their sensitive reaction to the changes of the new era. Considering these characteristics of engineering students, this research emphasizes that future communication education should be deployed from the major-focused thinking to the development of convergent thinking, from the problem-solving to the problem-finding, and from the contentious thinking to the cooperative thinking. In addition, as a class design reflecting future trends, this research emphasizes, firstly the development of cooperative communication education model, secondly active utilization of SMART technology, and lastly the importance of customized-coaching for each student considering their own characteristics and requirements.

• 대한음성학회지:말소리
• /
• 제61호
• /
• pp.49-62
• /
• 2007

This study focused on the improvement of prosody transplantation technology to be used for effective prosody education. Issues making the technology a less acceptable tool for prosody education were addressed. Instead of merely copying the target pitch onto a learner's utterances, the target pitch was resealed in semitone before the transplantation. In so doing, distortion of a signal was minimized and the transplanted utterance could have the quality of sound not different from the learner's utterances. Instead of manual transplantation, an automatic procedure was proposed to increase the reliability and the consistency of the outcome and enable real time processing. The perceptual performance of the automatic transplantation was evaluated by the perception experiment showing the automatic ransplantation was as good as the manual process.

• 음성과학
• /
• 제9권3호
• /
• pp.143-153
• /
• 2002

This study was designed to determine (1) the effects of the following stop consonant on the vowel length in isolated bi-syllabic words, (2) the mechanism which renders vowels longer in duration before lax stops than tense stops, (3) where the aspiratory interval is included, in the vowel portion or the preceding consonantal portion and (4) the influence of the preceding consonants upon the duration of the following vowel. Measurements were made of five timing variables on acoustic signals as three native Korean speakers uttered isolated bi-syllabic /VCV/ words in which the vowel was identical, /$\alpha$/, and the C slot was filled with bilabial stops. Findings: (1) the vowel length before the lax stops was significantly longer than before the tense stops, while the difference in the vowel duration between the tense stops was insignificant or negligible, (2) the vowel length varied as a function of the articulatory force of the following consonants, regardless of the phonological unit of syllable, (3) The aspiratory interval is interpreted as a portion of the preceding consonant and (4) The effects of the preceding consonants on the final vowel length were not rule-governed.

• 음성과학
• /
• 제15권1호
• /
• pp.53-62
• /
• 2008

The purpose of this study was to examine the English l sound in an English short story produced by 16 Korean students in order to determine various allophones of the sound using acoustic visual displays and perceptual judgments. The subjects read the story in a quiet office at normal speed. Each word included the lateral sound in onset or coda positions and before a vowel of the following word. Results showed as follows: Firstly, there was a durational difference between the two major groups. Also the majority of the subjects produced the clear l regardless of the contexts. Some students produced the sound as the Korean flap or the English glide [r]. A few missing cases were also seen. The dark l was mostly produced by the subjects of English majors in coda position with a few cases before a vowel in a phrase. Visual displays using the computer analysis were very helpful in distinguishing lateral variants but sometimes perceptual process would be necessary to judge them in fast and weak production of the target word. Further studies would be desirable to test the discrepancies between the acoustical and perceptual decisions.

• 말소리와 음성과학
• /
• 제1권4호
• /
• pp.133-144
• /
• 2009

This paper presents a method for constructing and using transliteration rules which are based on Phonics, an instructional method for speaking and writing English letters. Conventional approaches to automatic transliteration often focused on statistical methods. However, the construction or the collection of correct transliteration examples is always the bottleneck of the statistical transliteration model. Also, in practical domains where the collection of such data is very difficult, such as education and tourism, it is reasonable to build a system without much qualified data. Furthermore, compared with Korean orthography of borrowed foreign words, the proposed approach is much easier to construct, and can generate more refined rules. The experimentation result shows that the proposed approach can improve the performance of a statistical-based transliteration system.

• 대한음성학회:학술대회논문집
• /
• 대한음성학회 2004년도 춘계 학술대회 발표논문집
• /
• pp.261-265
• /
• 2004

The purpose of this paper is to improve English communicative competence of elementary school students through an acoustic study For this purpose, this study investigates various postlexical phenomena which can be applied to utterence contents in elementary school English book and analyzes the application of postlexical phenomena through the spectrogram when native speakers and elementary school students speak English. The speech materials were seven sentences which contained various postlexical phenomena. This leads to the conclusion that knowing and pronouncing postlexical phenomena of English is needed for improving English communicative competence successfully.