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A psychological evaluation method for fluctuating random noise based on fuzzy set theory

✍ Scribed by Shizuma Yamaguchi; Yuichi Kato; Kensei Oimatsu; Tetsuro Saeki

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
911 KB
Volume
45
Category
Article
ISSN
0003-682X

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✦ Synopsis

Zn psychological noise evaluation, subjective judgment of the acoustical stimulus causes fuzziness. By paying special attention to the fuzziness of the subjective impression, the categorized psychological evaluation is quantitatively understood as the fuzzy event. The so-called discrete-type membership function in theJield of fuzzy set theory is used as a practical method for discussing the relationship between the objective acoustical stimulus and the subjective human response. The patterns of discrete-type membership functions are determined by using the data actually observed to give the psychological impression. Next, a new method of evaluating the psychological impression is proposed for the case when subjects are exposed to the Jluctuating random noise of arbitrary probability distribution. Finally, the validity and usefulness of the proposed method are confirmed experimentally by applying it to the data actually observed.

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