著者

堀内 征治 堀内 泰輔

出版者

長野工業高等専門学校

雑誌

長野工業高等専門学校紀要 (ISSN:02861909)

巻号頁・発行日

vol.22, pp.7-12, 1990-12-28

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In the nature, there are three patterns of fluctuation classified by frequency spectrum. They are white fluctuation, 1/f (pink) fluctuation and brown fluctuation. Between the three, it has been reported that pleasant state of mind is supplied by any 1/f fluctuation. In order to create a natural music automatically, we applied this 1/f fluctuation to musical composition and arrangement, which is one of the brain works. Same experiments have been reported, but in this system we used new algorithm for generating 1/f fluctuation we developed.

著者

堀内 泰輔 HORIUCHI Taisuke

出版者

長野工業高等専門学校

雑誌

長野工業高等専門学校紀要 = Memoirs of Nagano National College of Technology (ISSN:02861909)

巻号頁・発行日

vol.41, pp.57-60, 2007-06-30

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In this article, we introduce some ICT practical use examples that can apply to a subject of applied mathematics. At first, we introduce the use of liquid crystal pen tablet. This sponsors a handwriting function with a pen in slide show of tasteless PowerPoint. Next, the use of remarkable numerical formula processing software is introduced. We introduce "Maxima" of free software and perform suggestion as an assistance tool of a calculation exercise of a student in scenes such as a definite integral, Laplus conversion, and partial fraction development. In addition, a graphical technique by Excel and a voice synthesis language by "PureData" are introduced. This makes full use of a pronunciation function and an FFT operation function.