• 대한후두음성언어의학회지
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• 제7권1호
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• pp.43-49
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• 1996

In this study, remote articulation training system which connects the hearing disabled trainee and the speech therapist via B-ISDN is introduced. The hearing disabled does not have the hearing feedback of his own pronuciation, and the chance of watching his speech organs movement trajectory will offer him the self-training of articulation. So the system has two purposes of self articulation training and trainer's on-line checking in remote place. We estimate the vocal tract articultory movements from the speech signal using inverse modelling and display the movement trajectoy on the sideview of human face graphically. The trajectories of trainees articulation is displayed along with the reference trajectories, so the trainee can control his articulating to make the two trajectories overlapped. For on-line communication and ckecking training record the system has the function of video conferencing and tranferring articulatory data.

• 대한전기학회논문지
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• 제41권2호
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• pp.209-216
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• 1992

Deafs train articulation by observing mouth of a tutor, sensing tactually the motions of the vocal organs, or using speech training aids. Present speech training aids for deafs can measure only single speech parameter, or display only frequency spectra in histogram of pseudo-color. In this study, a speech training aids that can display subject's articulation in the form of a cross section of the vocal organs and other speech parameters together in a single system is to be developed and this system makes a subject know where to correct. For our objective, first, speech production mechanism is assumed to be AR model in order to estimate articulatory motions of the vocal organs from speech signal. Next, a vocal tract profile model using LP analysis is made up. And using this model, articulatory motions for Korean vowels are estimated and displayed in the vocal tract profile graphics.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1996년도 추계학술대회
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• pp.114-117
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• 1996

In this study, remote articulation training system which connects the hearing disabled trainee and the speech therapist via B-ISDN is introduced. The hearing disabled does not have the hearing feedback of his own pronunciation, and the chance of watching his speech organs' movement trajectory will offer him the self-training of articulation. So the system has two purposes of self articulation training and trainer's on-line checking in remote place. We estimate the vocal tract articulatory movements from the speech signal using inverse modelling and display the movement trajectory on the sideview of human face graphically. The trajectories of trainees' articulation is displayed along with the reference trajectories, so the trainee can control his articulating to make the two trajectories overlapped. For on-line communication and ckecking training record, the system has the function of video conferencing and transferring articulatory data.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
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• pp.746-751
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• 1991

Deafs train articulation by observing mouth of a tutor. sensing tactually the notions of the vocal organs, or using speech training aids. Present speech training aids for deafs can measure only single speech ter, or display only frequency spectra in histogrm or pseudo-color. In this study, a speech training aids that can display subject's articulation in the form of a cross section of the vocal organs and other speech parameters together in a single system Is aimed to develop and this system makes a subject to know where to correct. For our objective, first, speech production mechanism is assumed to be AR model in order to estimate articulatory notions of the vocal tract from speech signal. Next, a vocal tract profile mode using LPC analysis is made up. And using this model, articulatory notions for Korean vowels are estimated and displayed in the vocal tract profile graphics.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 1부
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• pp.843-851
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• 2006

본 논문에서는 음성에 따른 얼굴 애니메이션을 사실적으로 표현하기 위한 조음기관(혀, 성대 등)의 움직임을 시각화하는 방법을 제시한다. 이를 위해서, 음성에 따른 얼굴 애니메이션을 위한 말뭉치(Corpus)를 생성하고, 생성된 말뭉치에 대해서 음소 단위의 분석(Phoneme alignment) 처리를 한 후, 각 음소에 따른 조음기관의 움직임을 생성한다. 본 논문에서는 조음기관의 움직임 생성을 위해서 얼굴 애니메이션 처리에서 널리 사용되고 있는 기저 모델 기반 형태 혼합 보간 기법(Blend shape Interpolation)을 사용하였다. 그리고 이를 통하여 프레임/키프레임 기반 움직임 생성 사용자 인터페이스를 구축하였다. 구축된 인터페이스를 통해 언어치료사가 직접 각 음소 별 조음기관의 정확한 모션 데이터를 생성토록 한다. 획득된 모션 데이터를 기반으로 각 음소 별 조음기관의 3차원 기본 기저를 모델링하고, 새롭게 입력된 음소 시퀀스(phoneme sequence)에 대해서 동기화된 3차원 조음기관의 움직임을 생성한다. 이를 통해 자연스러운 3차원 얼굴 애니메이션에 적용하여 얼굴과 동기화된 조음 기관의 움직임을 만들어 낼 수 있다.

• 대한소아치과학회지
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• 제40권4호
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• pp.306-313
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• 2013

구강악안면의 여러 구조는 매우 복잡하고 정밀한 상호과정을 거쳐 말소리를 만들어낸다. 그 중 치아는 중요한 조음기관으로서 치아의 상실시 정상적인 발음을 하기 위해서는 혀와 턱의 위치 수정을 통한 적응이 필요하며, 적응 가능 범위를 벗어난 경우에는 적극적인 보철적, 교정적 치료를 요하게 된다. 소아의 다수 치아 상실은 조음에 어려움을 가져올 뿐만 아니라 부정교합, 악골발육 저하, 측두하악관절의 변위, 저작력 저하, 영양 불균형, 심미성 저하 등의 문제를 초래하기 때문에 반드시 상실부위의 회복이 필요하다. 아크릴릭 레진을 이용한 기존의 가철성 장치와 비교하여 Valplast$^{(R)}$ 탄성의치는 조직과 긴밀하기 접착되며 치은의 자연적인 색조를 투과시키는 얇고 강한 레진 유지부를 가져 심미성이 매우 높으며 우수한 물성을 가지는 등 많은 장점을 갖고 있다. 특히 전체적인 두께가 얇고 부피가 작아 이물감이 적고 혀의 움직임을 방해하지 않기 때문에 발음의 회복에 장점을 가진다. 본 증례는 완전탈구된 하악 전치부로 인해 조음장애를 보였으나 Valplast$^{(R)}$ 탄성의치를 장착한 후 조음의 개선을 보인 경도 지적장애 환아에 관한 것으로 조음검사를 통해 하악 전치부의 상실이 조음에 미치는 영향에 보고하고자 한다.

• 말소리와 음성과학
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• 제5권3호
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• pp.95-101
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• 2013

Aging is related to anatomical and physiological changes in respiratory and phonation organs. These changes influence articulation which leads to inaccurate speech and slow articulatory diadochokinesis(DDK). DDK indicates the range, rate, regularity, accuracy, and agility of articulation that reflect motor speech function. The purpose of this study is to investigate the rates and regularities of DDK in healthy Korean elderly through passive acoustic analysis (Praat). Thirty subjects between the ages of 65 and 94 participated in this study. Rate was observed for 5 seconds, while regularity was calculated based on the standard deviation on the following: 1) syllable duration of each task; 2) gap duration between syllables. Then, simple regression analysis was conducted in order to examine the effect of age on performance. The result showed that the slow rate was not a significant factor in terms of advancing age. Furthermore, regularity indicated a significant difference in the following: 1) /pʌ/, /kʌ/ and /pʌtʌkʌ/ in syllable duration; 2) /kʌ/ duration in the gap between syllables. In conclusion, articulatory coordination is reduced with the onset of aging. In particular, /kʌ/ would be a sensitive task for articulatory coordination.

• 한국소음진동공학회논문집
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• 제21권10호
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• pp.883-889
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• 2011

The brand sound of vehicle diesel engine is recently one of the important advantage strategies in the automotive company. Because various noise components masked under high frequency level can be audible in quieter driving situation. Many researches have been carried out for subjective and objective assessments on vehicle sounds and noises. In particular, the interior sound quality has been one of research fields that can give high quality feature to vehicle products. Vehicle interior noise above 500 Hz is usually controlled by sound package parts. The materials and geometries of sound package parts directly affect on this high frequency noise. This paper describes the sound quality evaluation method for the vehicle diesel engine noise to establish objective criteria for sound quality assessment. Considering the sensitivity of human hearing to impulsive sounds such as diesel noise, the human auditory mechanism was simulated by introducing temporal masking in the time domain. Furthermore, each of the human auditory organs was simulated by computer codes, providing reasonable analytical explanations of typical human hearing responses to diesel noise. This method finally provides the sound quality index of vehicle diesel engine noise that includes high frequency intermittent offensive sounds caused by impacting excitations of combustion and piston slap.

• 정보처리학회논문지B
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• 제18B권6호
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• pp.397-404
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• 2011

본 논문에서는 헬륨가스 흡입에 따른 조음기관의 특성이 변화되는 것을 측정하기 위해 음성분석학적 요소의 적용을 통한 실험을 수행하였다. 헬륨가스는 기존에 잠수부가 사용하던 질소가스가 인체에 치명적인 공기 색전증을 유발하게 되면서 이를 극복하기 위한 대체 호흡용 가스로 사용되고 있다. 그러나, 헬륨가스는 명료도가 낮은 squeaky voice를 유발하기 때문에 잠수부들의 비정상적인 음성에 대한 해석에 어려움이 많다. 따라서, 헬륨가스가 음성기관에 미치는 영향을 음성분석학적 특성 변화로 측정하기 위해 헬륨가스 흡입 전과 후의 음성을 기반으로 피치 및 스펙트로그램 측정, 분석에 대한 실험을 수행하였다.

• 대한후두음성언어의학회지
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• 제33권2호
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• pp.83-88
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• 2022

Hunminjeongeum had 17 initial consonant letters. Among them, five consonant letters, those are ㄱ (牙音, molar sound letter), ㄴ (舌音, lingual sound letter), ㅁ(脣音, labial sound letter), ㅅ (齒音, dental sound letter), ㅇ (喉音, guttural sound letter), were served as chief consonants. There was no argument that consonant letters were made by symbolizing the shape of vocal organs during phonation of them. It could be phoniatrically explained that all of five chief consonants were morphologically symbolized from left lateral view of vocal tract during articulation. Although 'ㄱ' was known as molar sound, it was not modeled the shape of molar tooth but modeled the shape of tongue at molar teeth bearing area. The same principle applies to 'ㅅ', and it was represented the shape of upper surface of anterior tongue instead of incisor teeth. 'ㄴ' was a lingual sound and directly shaped the shape of tongue. 'ㄷ' was made by addition of a stroke 'ㅡ' meaning hard palate above 'ㄴ'. 'ㅁ' was represented the shape of lateral view of anterior mouth. 'ㅇ' was looked like shaping left lateral view of laryngopharyngeal space.