• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.36 no.8B
• /
• pp.979-985
• /
• 2011

One of the most important means in modem NQ (Network Quotient) emphasized society is the communication skill. Therefore, it is mostly necessary to accurately express his or her own idea and maximize own communication competence. For this, efforts on improving pronunciation accuracy, such as pronunciation stretching practice and vocal cords reflex point acupressure therapy, have been devoted for communication competence in daily life. However, objective and positive method to substantiate such efforts has not yet been studied to find if the methods can improve pronunciation accuracy in effect. We, therefore, propose an IT based method of substantiation and quantization for such pronunciation accuracy improvement methods. Voice analysis on voice data sample of 30 males in 20s, before and after pronunciation stretching practice and vocal cords reflex point acupressure, has been performed in this paper.

• MALSORI
• /
• no.19_20
• /
• pp.43-57
• /
• 1990

The teaching of pronunciation is one of the areas in which linguistic phonetics can play an extremely useful role. This paper is concerned with the application of the results of my phonetic research to the actual teaching of Korean standard pronunciation with special reference to speech rhythm. It has been found that Korean words and utterances of various lengths are pronounced in standard Korean with one of the four main rhythmic patterns, each containing a strong stress. Unless we get the rhythmic patterns right in pronouncing Korean words and utterances, therefore, the resulting pronounciation is bound to sound dialectal or incorrect and in many instances even unintelligible to listeners. Hence the undeniable need to devise a useful technique to teach the Korean speech rhythm in a systematic way. In this paper each of the four main rhythmic patterns is presented and elaborated with sample examples taken from the living Korean. It is hoped that these examples of words and utterances can be used at the same time as useful pronunciation drill material not only for Koreans with dialectal background but also for foreign learners of Korean.

• MALSORI
• /
• no.47
• /
• pp.51-72
• /
• 2003

The purpose of this paper is to design Speech Database for Korean pronunciation education. For this purpose, I investigated types of speech errors of Korean-learners, made texts for recording, which involves all types of speech errors, and showed how to gather speech data and how to tag their informations. It's natural that speech data should include Korean-learners' speech and Korean people's speech, because Speech DB that I try to develop is for teaching Korean pronunciation to foreigners. So this DB should have informations about speakers and phonetic informations, which are about phonetic value of segments and intonation of sentences. The intonation of sentence varies with the type of sentence, the structure of prosodic units, the length of a prosodic unit and so on. For this reason, Speech DB must involve tags about these informations.

• Speech Sciences
• /
• v.7 no.3
• /
• pp.127-138
• /
• 2000

The aim of this paper is to find the speech problems of English Laterals by Korean learners and to contribute to the effective pronunciation education with visualizing the pronunciation. In this paper we analyzed 18 words including lateral sounds which were divided into such as: initial, initial consonant cluster, intervocalic, final consonant cluster, and final. To analyse the words we used High speed speech analysis system. We examined acoustic characteristics of English lateral spectrogram by using voice sustained time(ms), FL1, FL2, FL3. Before we started, we had expected that the result would show us that the mother tongue interfere in the final sounds because we have similar sounds in Korea. The results of our experiments showed that initially, voice sustained time showed many more differences between Korean and native pronunciation. Also, it was seen that Korean pronunciation used the syllable structure of the own mother tongue. For instance, in the case of initial consonant cluster CCVC, Koreans often used CC as a syllable and VC as another. This was due to the mother tongue interference. For this reason in the intervocalic and in the final, we saw the differences between Korean and native. Therefore we have to accept the visualized analysis system in the instruction of pronunciation.

• Speech Sciences
• /
• v.11 no.3
• /
• pp.55-68
• /
• 2004

The purpose of this experimental study is to investigate the relationship between English pronunciation and listening comprehension of English diphthongs and low vowels of Korean college students from the Chungnam and Gyungnam provinces. Of 22 test sentences for listening comprehension, 15 sentences were recorded by native speakers and seven sentences were edited from Springboard by Oxford University Press. For the listening comprehension test, 90 subjects from two groups, Chungnam dialect speakers and Gyungnam dialect speakers, were selected. They listened to 22 sentences produced by audio cassette tape and completed a cloze exercise. By the results of this experiment, we observed that Korean collegians of Gyungnam province showed a better listening comprehension of words including front low vowels when they preceded voiced sounds than those of Chungnam province. When the back low vowel came in an open syllable, we also recognized the same result; Gyungnam province collegians showed better listening comprehension of words including back low vowels than those of Chungnam province. As the results of Hee-Suk Park & Jung-Soak Kim(2003) showed that Gyungnam province collegians pronounced the English low vowels longer than Chungnam province collegians, we discovered that there was a positive relation between English pronunciation and listening comprehension, especially in Gyungnam province collegians. However regarding words including English diphthongs we discovered almost no relation between English pronunciation and listening comprehension.

• Phonetics and Speech Sciences
• /
• v.1 no.1
• /
• pp.77-86
• /
• 2009

This study observes how the combined intervention program effects on the acquisition reading pronunciation of Korean phonological process words and the acquisition aspects of each phonological process rules to four Korean learners whose first language is Chinese. The training program is the combination of multisensory Auditory, Visual and Kinethetic (AVK) approach, wholistic approach, and metalinguistic approach. The training purpose is to evaluate how accurately they read the words of the phonological process which have fortisization, nasalization, lateralization, intermediate sound /ㅅ/ (/${\int}iot"$/). We access how they read the untrained words which include the four factors above. The intervention effects are analyzed by the multiple probe across subjects design. The results indicate that the combined phonological process rule explanation and the words activity intervention affects the four Chinese subjects in every type of word. The implications of the study are these: First, it suggests the effect of Korean pronunciation intervention in a concrete way. Second, it offers how to evaluate the phonological process and how to train people who are learning Korean language.

• Speech Sciences
• /
• v.12 no.3
• /
• pp.185-200
• /
• 2005

The objective of this study is to examine acoustic cues in spoken French for the assessment of pronunciation which is necessary to realization of the multimedia system. The corpus is composed of simple expressions which consist of the French phonological system include all phonemes. This experiment was made on 4 male and female French native speakers and on 20 Korean speakers, university students who had learned the French language more than two years. We analyzed the recorded data by using spectrograph and measured comparative features by the numerical values. First of all, we found the mean and the deviation of all phonemes, and then chose features which had high error frequency and great differences between French and Korean pronunciations. The selected data were simplified and compared among them. After we judged whether the problems of pronunciation in each Korean speaker were either the utterance mistake or the interference of mother tongue, in terms of articulatory and auditory aspects, we tried to find acoustic features as simplified as possible. From this experiment, we could extract acoustic cues for the construction of the French pronunciation training system.

• Phonetics and Speech Sciences
• /
• v.1 no.2
• /
• pp.141-149
• /
• 2009

An emphasis on teaching suprasegmental features of English, specifically English rhythm, is essential in order to improve the 'intelligibility' of the pronunciation of Korean EFL learners among interlocutors who use English as a Lingua Franca(ELF). By redefining the ELF suggested by Jenkins (2000, 2002), this paper argues that Lingua Franca Core (LFC) must include suprasegmental features such as 'stress-based rhythm' and word stress. However, because 'isochrony' is difficult to measure in a foot, the rhythm unit must be expanded to an intonational phrase which has prominence in it and the rhythm of the unit can be measured by calculating the duration of each segment in context The rhythmic pattern of Korean learners of English and that of native speakers or other non-native English speakers can then be calculated and compared by using correlation coefficients of the segmental duration. In terms of sociolinguistic factors, improving the 'comprehensibility' and 'accentedness' of Korean EFL learners' pronunciation is also important in international communication, which calls for more emphasis on suprasegmental features.

• Phonetics and Speech Sciences
• /
• v.10 no.2
• /
• pp.39-44
• /
• 2018

The purpose of this study is to investigate the English pronunciation for high-leveled adult Korean speakers based on pronunciation proficiency test. For this purpose, one native English speaker and eight Korean speakers' suprasegmental features such as sentence F0, standard deviation of vowels and stressed / unstressed vowels' F0, duration and intensity were measured and analyzed. The major results show that (1) high-leveled adult Korean speakers' sentence F0 was similar to that of native English speaker, (2) vowel durations, were less diverse than those of native English speakers, and (3) high-leveled adult Korean speakers utilize vowel duration more actively than F0 to indicate the stress assignment of vowels.

• Phonetics and Speech Sciences
• /
• v.2 no.2
• /
• pp.69-75
• /
• 2010

We propose an automatic pronunciation diagnosis system to evaluate the pronunciation of a foreign language without the uttered text. We recorded English utterances spoken by native and Korean speakers, and utterances spoken by Koreans are evaluated by native speakers based on three criteria: fluency, accuracy of phones and intonation. The system evaluates the utterances of test Korean speakers based on the differences of log-likelihood given two models: one is trained by English speech uttered by native speakers, and the other is trained by English speech uttered by Korean speakers. We also applied purification algorithm to increase class differentiability. The purification can detect and eliminate the non-speech frames such as short pauses, occlusive silences that do not help to discriminate between utterances. As the results, our proposed system has higher correlation with the human scores than the baseline system.