The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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Modeling of the Time-frequency Auditory Perception Characteristics Using Continuous Wavelet Transform

연속 웨이브렛 변환을 이용한 청각계의 시간-주파수 인지 특성 모델링

  • 이상권 (인하대학교 기계공학과) ;
  • 박기성 (인하대학교 기계공학과) ;
  • 서진성 (한국산업기술대학교 기계공학과)
  • Published : 2001.11.01
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Abstract

The human auditory system is appropriate for the "constant Q"system. The STFT (Short Time Fourier Transform) is not suitable for the auditory perception model since it has constant bandwidth. In this paper, the CWT (continuous wavelet transform) is employed for the auditory filter model. In the CWT, the frequency resolution can be adjusted for auditory sensation models. The proposed CWT is applied to the modeling of the JNVF. In addition, other signal processing methods such as STFT, VER-FFT and VFR-STFT are discussed. Among these methods, the model of JNVF (Just Noticeable Variation in Frequency) by using the CWT fits in with the JNVF of auditory model although it requires quite a long time.

Keywords

References

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