Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Tonality Design for Sound Quality Evaluation for Gear Whine Sound

승합차량의 액슬기어 음질의 평가를 위한 새로운 순음도 모델 개발과 응용

  • Kim, Eui-Youl (AVSP Lab, Department of Mechanical Engineering, Inha University) ;
  • Jang, Ji-Uk (AVSP Lab, Department of Mechanical Engineering, Inha University) ;
  • Lee, Sang-Kwon (AVSP Lab, Department of Mechanical Engineering, Inha University)
  • Received : 2012.07.31
  • Accepted : 2012.11.13
  • Published : 2012.12.20
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Abstract

Aure's tonality was considered as the sound metrics for the expression of the tonality of gear whine sound in a previous research. It was failed to use the Aure's tonality as a sound metric for the tonal impression. Thus Aures's tonality, was developed for tonal impression in previous research. However, this metric did not express well the tonality of gear whine sound since the whine sound is a non-stationary signal with frequency modulation and amplitude modulation. In this study, the new method for the tonality evaluation for a non-stationary signal is presented. It is developed based on the prominence ratio, tonality impression function, and lower threshold level. It improves the accuracy and reliability of the sound quality index being used for the sound quality evaluation of the axle-gear whine sound.

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References

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