Rumbling Index Development for a Passenger Car

승용차의 럼블링 음질 인덱스 개발

  • 채희창 (인하대학교 대학원 기계공학과) ;
  • 박동철 (현대자동차 연구소 기능시험 2) ;
  • 정승균 (현대자동차 연구소 기능시험 2) ;
  • 이상권 (인하대학교 기계공학과)
  • Published : 2003.05.01

Abstract

Rumbling sound is one of the most important interior sound of a passenger cu. The conventional rumbling noise research was focused on the reduction of the A-weighted sound pressure level. However A-weighted sound pressure level can not give the whole story about the rumbling sound of a passenger car. In this paper, we employed sound metric which is the subjective parameter used in psycoacoustics. According to recent research results, the relation between sound metrics and subjective evaluation is very complex and has nonlinear characteristics. In order to estimate this nonlinear relationship, artificial neural network th[ ory has been applied to derivation of sound quality index fur rumbling sound of a passenger car.

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