A Method of Sound Expression for Bioelectric Potential Changes in Plant.
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- KUSHIHASHI Yasuhiro
- Faculty of Technology, Tokyo University of Agriculture and Technology
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- MIWA Yoshiyuki
- Department of Science and Engineering, Waseda University
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- KOHZU Yoshiyuki
- Composer
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- SASAGAWA Masayuki
- Graduate School of Science and Engineering, Waseda University
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- YAMAURA Tsutomu
- Graduate School of Science and Engineering, Waseda University
Bibliographic Information
- Other Title
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- 植物における生体電位波形群の音表現
- ショクブツ ニ オケル セイタイ デンイ ハケイグン ノ オト ヒョウゲン
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Abstract
A sound expression methodology for AC components of bioelectric potential and a conversion system in real-time manner has been proposed in order to express spatial and temporal diversity in the potential changes on the leaf surface.<BR>The system consists of measurement subsystem of bioelectric potential including disk electrodes and amplifiers of thirty two channels, a computer of thirty two bits CPU, digital sound sources based on MIDI standard, thirty two speakers and a modem. In the system, three techniques for bioelectric data conversion have been essentially employed, namely, Pitch Modulation (P.M.) for converting the potential change to frequency of audible sound, Amplitude Modulation (A.M.) for the intensity to sound amplitude, and Threshold Triggering (T.T.) for triggering one-shot sound in excess of threshold level.<BR>Throughout an evaluation study of the system, the combination of P.M. and A.M. has made the adaptation to various wave forms in the bioelectric potential changes possible and its effective performance has been confirmed by the simultaneous processing of bioelectric wave forms from different leaves.
Journal
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- Shokubutsu Kojo Gakkaishi
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Shokubutsu Kojo Gakkaishi 9 (4), 239-246, 1997
JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS
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Details 詳細情報について
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- CRID
- 1390282679358663040
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- NII Article ID
- 10024573633
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- NII Book ID
- AN10451761
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- ISSN
- 18803555
- 09186638
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- NDL BIB ID
- 4345023
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed