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Fundamental study on fatigue measurement in VDT work from speech analysis
Author(s) -
Matsumura Toshie,
Kawamura Emi,
Kosaka Hiroaki,
Hashimoto Hideki,
Kagawa Toshiya,
Yoshimura Hiroki,
Shimizu Tadaaki
Publication year - 2019
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12130
Subject(s) - flicker , work (physics) , noise (video) , computer science , index (typography) , pulse rate , speech recognition , simulation , engineering , artificial intelligence , mechanical engineering , medicine , world wide web , image (mathematics) , operating system , blood pressure , radiology
Abstract We aimed at developing a simple fatigue measurement system, so far the influence of the noise is small under laboratory environment and the experimenter side who uses a simulator. We have been studying fatigue measurement in a manageable environment. In order to show the effectiveness of our proposed method in a real environment, we collected fatigue measurement indexes before and after work for technical engineers of Software Development Company operating visual display terminals (VDT) work, changes before and after were compared and examined. As a result, in the conventional indexes, a significant difference was found in the pulse rate and the flicker value. We found that there are significant differences between before and after some speech of fundamental frequency, speech power, and period of speech indexes. In VDT work, there was a difference in flicker value as a fatigue measurement index, which was also supported by subjective symptoms and self‐evaluation results. In addition, since significant differences were also found in the speech index, in the work centering on the VDT work as well as the bicycle simulator so far, it was shown that speech indexes can be effective indicators.