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자료유형
학술저널
저자정보
공경수 (Pusan National University) 정의봉 (Pusan National University) 김태훈 (LG electronics) 신대식 (LG electronics) 안세진 (Uiduk University)
저널정보
한국소음진동공학회 한국소음진동공학회논문집 한국소음진동공학회논문집 제26권 제5호
발행연도
2016.10
수록면
536 - 545 (10page)

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이 논문의 연구 히스토리 (4)

초록· 키워드

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Household refrigerator radiates noise of which the pattern is dependent on the operating condition of its parts, such as compressor, flow fans, etc. Thus the refrigerator noise has a variety of frequency characteristics. Therefore, it is required to consider the noise characteristics for evaluating the noise quality and eventually developing the sound quality index of the refrigerator noise. In this study, five units of household refrigerator were selected to measure their noises that were used to generate sound sources for jury test of the study. The measured noises of five refrigerators were divided into ten kinds of sound source by considering operating condition and frequency characteristics. Additionally, the ten sources were each edited to have the same SPL of 30 ㏈A. Totally twenty kinds of sound sources (10-original SPL, 10-edited SPL 30 ㏈A) were evaluated by twenty-two subjects, and compared with their sound quality metrics. It was found that only the loudness of the metrics was meaningfully correlated with the subjective evaluation. The rests, sharpness, roughness and fluctuation strength, were not related. The conclusion of this study is that a new sophisticated index is necessary to be developed to qualitatively evaluate the household refrigerator noise.

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ABSTRACT
1. 서론
2. 청음 평가
3. 시험 결과
4. 결론
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UCI(KEPA) : I410-ECN-0101-2017-424-001319254