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Analysis of Subjective Sound Quality Characteristics for the HVAC System using the Design of Experiments  

Oh Jae-Eung (한양대학교 기계공학부)
Yun Taekun (한양대학교 대학원 자동차공학과)
bin Abu Aminudin (한양대학교 대학원 자동차공학과)
Sim Hyun-Jin (한양대학교 대학원 자동차공학과)
Lee Jung-Youn (경기대학교 기계시스템디자인공학부)
Kim Sung-Soo (현대모비스 응용기술연구부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.11, 2005 , pp. 59-63 More about this Journal
Abstract
Since human listening is very sensitive when the sound hit him, the subjective index of sound quality is required. Therefore, at each situation of sound evaluation its composed with the sound quality factor. But, when substituting the level of one frequency band we could not see the tendency of substitution at whole frequency band during the sound quality evaluation. In this study a design of experiment is used. The frequency domain is divided into an equally 12 parts and each level of domain whether is given increase or decrease due to the change of frequency band based on 'sharp' and 'annoy' of the sound quality is analyzed. By using the design of experiment the number of test is reduce very effectively by the number of experiment and each band the main effect will be as a solution. The case of sound quality for 'sharp' and 'annoy' at each band, the change of band (increase or decrease of sound pressure or keep maintain) which will be the most effects on the characteristics of sound quality can be identify and this will be able to us to select the objective frequency band. Through these obtained results the physical changes of level at arbitrary frequency domain sensitivity can be adapted.
Keywords
Subjective sound quality characteristic; Design of Experiment; Sharp; Annoy;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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