ISCA Archive Eurospeech 1999
ISCA Archive Eurospeech 1999

Fixed point analysis of frequency to instantaneous frequency mapping for accurate estimation of F0 and periodicity

Hideki Kawahara, Haruhiro Katayose, Alain de Cheveigné, Roy D. Patterson

An accurate fundamental frequency (F0) estimation method for non-stationary, speech-like sounds is proposed based on the differential properties of the instantaneous frequencies of two sets of filter outputs. A specific type of fixed points of mapping from the filter center frequency to the output instantaneous frequency provides frequencies of the constituent sinusoidal components of the input signal. When the filter is made from an isometric Gabor function convoluted with a cardinal B-spline basis function, the differential properties at the fixed points provide practical estimates of the carrier-to-noise ratio of the corresponding components. These estimates are used to select the fundamental component and to integrate the F0 information distributed among the other harmonic components.


doi: 10.21437/Eurospeech.1999-613

Cite as: Kawahara, H., Katayose, H., Cheveigné, A.d., Patterson, R.D. (1999) Fixed point analysis of frequency to instantaneous frequency mapping for accurate estimation of F0 and periodicity. Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999), 2781-2784, doi: 10.21437/Eurospeech.1999-613

@inproceedings{kawahara99_eurospeech,
  author={Hideki Kawahara and Haruhiro Katayose and Alain de Cheveigné and Roy D. Patterson},
  title={{Fixed point analysis of frequency to instantaneous frequency mapping for accurate estimation of F0 and periodicity}},
  year=1999,
  booktitle={Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999)},
  pages={2781--2784},
  doi={10.21437/Eurospeech.1999-613}
}