Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)

The Acoustical Society of Korea (한국음향학회)
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PITCH EXTRACTION USING AN APROXIMATELY IDEAL LOW-PASS FILTER

  • Matsuoka, T. (Department of Electronics and Communication) ;
  • Sugama, A. (Department of Electronics and Communication) ;
  • Onodera, E. (Department of Electronics and Communication) ;
  • Ishida, Y. (Department of Electronics and Communication)
  • Published : 1994.06.01
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Abstract

Although an ideal low-pass filter is not physically realizable, it can be approximated on the basis of time reversal techniques. In this paper, we describe a method to approximately implement the ideal low-pass filter and apply it to the pitch extraction system. Experimental results show that our method is effective to estimate the fundamental frequency of the speech signal.

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