웨이브렛 변환을 이용한 음성 신호의 피치 검출

Pitch Detection of Speech Signals Using Wavelet Transform

  • Lee, Min-Woo (Department of Electrical Engineering MyongJi Univ.) ;
  • Sohn, Joon-Il (Department of Electrical Engineering MyongJi Univ.) ;
  • Choi, Dong-Woo (Department of Electrical Engineering MyongJi Univ.) ;
  • Beack, Seung-Hwa (Department of Electrical Engineering MyongJi Univ.) ;
  • Kim, Jin-Soo (Department of Electrical Engineering MyongJi Univ.)
  • 발행 : 1995.11.18

초록

In this paper, wavelet transform with multi-resolution property is used to improve the accuracy of pitch estimation of speech signal. Pitch detection of speech signal is based on the local maxima by using wavelet transform. The wavelet transform of a signal is a multiscale decomposition that is well localized in space and frequency. The proposed pitch defection algorithm is suitable for both low-pitched and high-pitched speakers.

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