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An Experimental Study on the Noise Evaluation of H.D. TV sets by Psycho-acoustic Experiments

청감실험을 통한 고화질 TV set 소음평가에 관한 실험적 연구

  • 이주엽 (전남대학교 공업기술연구소) ;
  • 이태강 (전남대학교 공업기술연구소) ;
  • 김희진 ((주)LG전자 TV제품연구소) ;
  • 김선우 (전남대학교 건축학부)
  • Published : 2006.10.20

Abstract

The purpose of this study is to propose the proper vocabularies for evaluating H.D TV set fan noise. To achieve this goal, psycho-acoustic experiments were carried out with TV set fan noise modulated at specific frequency band. Finally, a correlation analysis between vocabularies, and a factor analysis of psycho-acoustical responses were conducted. As a result of this study, followings are suggested. Analyzing the psycho-acoustical response corresponding to the various sound level, the higher the sound levels, the higher the response values were. It is estimated that the sound level determined psycho-acoustical responses. On the degree of response to fan noise, the initial level of negative feeling is located on $35{\sim}40$ dB(A). The factor of evaluating H.D. TV set fan noise has induced three the appropriate korean adjectives; Irritate, Monotonous, stuffy and dryness. The result of this study may be used to evaluate the acoustic threshold level for indoor noise or a basis for specifying the desired acoustic environment of dwellings.

Keywords

References

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