• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.441-445
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• 2009

We have developed a real-time software tool to extract a speech feature vector whose time sequences consist of three groups of vector components; the phonetic/acoustic features such as formant frequencies, the phonemic features as outputs on neural networks, and some distances of Japanese phonemes. In those features, since the phoneme distances for Japanese five vowels are applicable to express vowel articulation, we have designed a switch, a volume control and a color representation which are operated by pronouncing vowel sounds. As examples of those vowel interface, we have developed some speech training tools to display a image character or a rolling color ball and to control a cursor's movement for aurally- or vocally-handicapped children. In this paper, we introduce the functions and the principle of those systems.

• 대한전자공학회논문지
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• 제12권1호
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• pp.27-33
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• 1975

한글의 기하학적 배조상의 복잡도로 부터 한글 각 자소의 character generator용 diode matrix의 size를 추산하고 이자소 matrix 3성(초성, 중성, 종성)의 OR동작으로시 모아쓰기 한글의 모든 조합이 가능합을 보였고 수평각음순가성과 수직모음용초성의 자판 선택자, 종성이 있을 때와 없을때의 중용길이의 변경등이 비교적 간단한 논리회로로서 switch될 수 있음을 보였다. 새로 15bit내부 code를 제안하였는데 이는 86개의 sparse diode matrix로시 모든 조합을 다 카버하고 그러면서도 decodig기구의 규모를 줄여준다. The required minimum size of character diode matrix of Korean letters is estimated from the topological complexity of letter structure. The OR aombination of three letter boards (diode matrice) gives all possible Hangout whole letters in proper traditional combined form with minimum required discernibility. Two forms of first consonants (centre located ones for horizontal vowels and leftward displaced ones for vertical and composed vowels) are switched by only 1 bit of the vowel code. The vowel pattern length is modified by again the last four bits of the code. A new 15bit sized inner code is proposed which permits considerably small sized decoding mechanism.