• 센서학회지
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• 제22권2호
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• pp.156-161
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• 2013

This study was aimed to implement the electroglottography (EGG) system for analyzing fundamental frequency of the phonation. EGG was recorded from the conductance between ring electrodes attached to the neck skin area near thyroid cartilage with high frequency carrier electric signals during vocalization, and voice signal was recorded with microphone simultaneously. EGG and voice signals were transmitted to the audio port in PC and recorded with stereo sound recording program. From the digitized data, several parameters such as pitch, jitter, shimmer, CQ and SQ were analyzed from the vowel sounds. For the voice training, sound fundamental frequency was displayed during the vocalization and singing a song using pitches analyzed from the EGG. The system implemented in this study could be used for vocal exercise.

• 음성과학
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• 제11권3호
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• pp.181-192
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• 2004

The metrical structures in orally produced the poetry were generally analyzed by accent, metre and syllable. The purpose of this study is to investigate of metrical structures of Korean modem poetry using computer implemented speech analysis system. Two famous poet's poems confidential talk, Miloe and 'A buddhist dance, Sungmu' were selected for prosodic analysis. The informant is 60 years old professor in major of Korean and French poetry. The syllable structures of poems were analyzed primarily by vowel timbers, which can classified compact and diffuse vowels according to the distance of F2-F1. The perception cues of consonants were analyzed by VOT and tensity features of articulation. Rhythm is classified by dactyl, anapest, trochee, spondee and iambic. As a result, syllable structures of Korean modem poetry were mainly CV and CVC and the reading times of each lines were 3-4sec for 12 and 15 syllables. Main metre of Korean modem poems constructed the Imbic and Anapest. The break of each lines were demarcated by grammatical structure or meaning rather than phonetic structures.

• 대한방사선기술학회지:방사선기술과학
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• 제22권1호
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• pp.35-42
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• 1999

This study was undertaken to take the correct vocal technique(especially about the resonance of oral cavity). The resonance of oral and pharyngeal cavity is the principle which can vocalize well without any abnormal signs in the throat. Therefore it is important for us to understand how to use the correct resonance of oral and pharyngeal cavity. Shimadzu X-ray remote control TV system and Shimadzu magnet $nex-{\alpha}$ (SMT-50CX/H) were used for checking the movements of T-M joint and diaphragmatic respiration. The results obtained were summerized as follows: 1. While opening T-M joint space like the vowel "A" [a], We should vocalize five fundamental vowel [a,e,i,o,u] with diaphragmatic respiration holded. 2. Diminuendo must be expressed by increasing a breath volume while descending a mandible gradually because we can not ascend maxilla. So we can make a delicate expression. 3. The resonance of oral cavity must be scattered by elevating the soft palatine lightly with relax of throat.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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• pp.203-206
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• 2007

The purpose of this study was to investigate and quantitatively describe the acoustic characteristics of current Korean monophthongs. Recordings were made of 33 men and 27 women producing the vowels /i, e, ${\varepsilon}$, a, (표현불가), O, u, (표현불가)/ in a carrier phrase "This character is _." A listening test was conducted in which 19 participants judged each vowel. F1, F2, and F3 were measured from the vowels judged as intended vowels by more than 17 people from the listening test. Analysis of formant data shows some interesting results including the undeniable confirmation of 7-vowel system in current Korean.

• 대한음성학회:학술대회논문집
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• 대한음성학회 1996년도 10월 학술대회지
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• pp.464-467
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• 1996

This paper aims to exploit inter/intra-speaker phoneme sub-class variations as criteria for adaptation in a phoneme recognition system based on a novel neural network architecture. Using a subcluster neural network design based on the One-Class-in-One-Network (OCON) feed forward subnets, similar to those proposed by Kung (2) and Jou (1), joined by a common front-end layer. the idea is to adapt only the neurons within the common front-end layer of the network. Consequently resulting in an adaptation which can be concentrated primarily on the speakers vocal characteristics. Since the adaptation occurs in an area common to all classes, convergence on a single class will improve the recognition of the remaining classes in the network. Results show that adaptation towards a phoneme, in the vowel sub-class, for speakers MDABO and MWBTO Improve the recognition of remaining vowel sub-class phonemes from the same speaker

• 한국음향학회:학술대회논문집
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• 한국음향학회 2001년도 추계학술발표대회 논문집 제20권 2호
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• pp.29-32
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• 2001

본 논문에서는 연구실에서 만든 음성인식기와 합성기를 이용하여 십자말 게임을 구현하였다. 십자말 게임에는 고사성어 600개 정도의 단어가 사용되었으며, 다른 영역별 사전을 추가 할 수 있도록 만들어졌다. 구현된 게임은 시작, 진행 등의 모든 과정이 음성으로 동작하며, 부과적인 정보는 음성 합성(TTS)에 의해 이루어진다. 십자말 게임에 사용되는 단어의 배열은 매번 랜덤하게 선택되도록 구성되며, 음성 인식기는 VCCV (Vowel + Consonant + Consonant + Vowel) 기반의 화자독립으로 구현되었다. 선택된 문제에 대한 설명은 텍스트로 보여주면서, 동시에 TTS 시스템에 의해 음성으로 출력된다.

• 대한음성학회지:말소리
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• 제57호
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• pp.15-30
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• 2006

This paper investigates differences between generations in the vowel system of the Daegu dialect in terms of F1 and F2 of the monophthongs. Three different groups of subjects participated in the present study: 20 female native speakers of the Daegu dialect(10 in their 20's and 10 in their 40's), and 10 female native speakers of the Seoul dialect as a control group. It has been assumed that the Daegu dialect has six vowels. However, younger generation appears to have 7 vowels different from older generation. The result of the present study showed that the Daegu dialect has different vowel systems between generations: for 40's have six vowels and 20's have seven vowels. These differences seems to be attributed to the influence of the Seoul dialect.

• 한국전자통신학회논문지
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• 제10권12호
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• pp.1345-1354
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• 2015

본 논문은 정보통신용 표준 부호인(정보 교환용 부호계 $KS{\times}1001$ : 2004)에 정의되어 있는 한글낱자 부호집합에 대하여, Date link 계층에서 AMI/HDB-3 스크램블링 측면에서 효율적인 데이터 전송을 위한 새로운 부호집합 체계를 제시하였다. 기존 부호집합 체계와 상호비교를 위하여 ($4{\times}4$) 비트 원천부호화 규칙과 한글 빈도통계 (국립국어원)를 적용한 결과 약44 %의 데이터 전송 효율이 개선시킬 수 있음을 나타났다.

• 비교문화연구
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• 제27권
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• pp.7-29
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• 2012

This study was aimed to analyze - focusing on the thesis of Younes - the pronunciation error occuring mostly for Arabian speakers to learn French pronunciation for Arabians and to suggest the effective study plan to improve such errors and provide the effective studying method. The first part is on how the Arabic and French pronunciation system are distinguished, especially by comparing and analyzing the system of graphemes and phonemes, with which we focused on the fact that Arabian is a language centralized on consonants, while French is a verb-centered language. In the second part, we mainly discussed the cause and the types of errors occurring when Arabic speakers study French pronunciation. As of the category of mistakes, we separated them into consonants and verbs. We assumed the possible method which can be used in learning, focusing on /b/, /v/, /p/, /b/ - in case of non-verbs and consonants - and /y/, /ø/, - in case of verbs - which don't exist in Arabic pronunciation system. One of the troubles the professors in Arabian culture have in teaching French to native learners is how to solve the problem on a phonetic basis regarding speaking and reading ability, which belong to verbal skill, among the critical factors of foreign language education, which are listening, speaking, reading, and writing skills. In fact, the problems occuring in learning foreign language are had by not only Arabian learners but also general groups of people who learn the foreign language, the pronunciation system of which is distinctly distinguished from their mother tongue. The important fact professors should recognize regarding study of pronunciation is that they should encourage the learners to reach the acceptable level in proper communication rather than push them to have the same ability as the native speakers, Even though it cannot be said that the methods suggested in this study have absolute influence in reducing errors when learning French pronunciation system, I hope it can be at least a small help.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제22권11호
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• pp.591-600
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• 2016

네트워크와 컴퓨팅 기술의 발달로 인해 인간이 생활하는 거의 모든 일상 환경에 컴퓨팅 기술의 접목이 증대되고 있다. 또한, 사물 인터넷에 대한 관심이 급속히 증대되면서, 음성 인식은 중요한 HCI 수단으로 자리 잡고 있다. 본 논문은 음소 기반 한국어 음성 인식 시스템의 일부로서, 한국어 모음 'ㅜ'에 대한 새로운 인식 방식을 제안한다. 제안하는 방식은 주파수 영역에서의 분석 대신, 시간 영역에서 계산한 벌크 지표를 분석하여 동작하므로, 계산 비용을 현저히 절감할 수 있다. 벌크 지표를 사용하여 모음 'ㅜ'의 전형적인 파형 패턴들을 탐지하기 위한 네 가지 요소 알고리즘을 제시하며, 이를 결합하여 최종적인 판별을 수행한다. 실험 결과를 통해, 제안하는 방식이 90.1%의 인식 정확도를 달성할 수 있음을 확인하였으며, 인식 속도는 어절 당 0.68 msec이다.