ISCA Archive Interspeech 2008
ISCA Archive Interspeech 2008

Study on manipulation method of voice quality based on the vocal tract area function

Yoshinori Uchimura, Hideki Banno, Fumitada Itakura, Hideki Kawahara

This paper describes a new manipulation method of voice quality which is based on the STRAIGHT analysis-synthesis system. This method manipulates voice quality by changing the vocal tract area function calculated from the PARCOR coefficients. The PARCOR coefficients used in the proposed method is obtained from the auto-correlation function of the STRAIGHT spectrum. We have implemented a simple speech morphing system based on the proposed method. As a result, the morphed spectrum by the proposed method has natural spectral transition such as in human voice even if the formant frequencies of input two speech signals are very different, although the morphed spectrum by the conventional linear interpolation method has unnatural spectral transition.


doi: 10.21437/Interspeech.2008-334

Cite as: Uchimura, Y., Banno, H., Itakura, F., Kawahara, H. (2008) Study on manipulation method of voice quality based on the vocal tract area function. Proc. Interspeech 2008, 1084-1087, doi: 10.21437/Interspeech.2008-334

@inproceedings{uchimura08_interspeech,
  author={Yoshinori Uchimura and Hideki Banno and Fumitada Itakura and Hideki Kawahara},
  title={{Study on manipulation method of voice quality based on the vocal tract area function}},
  year=2008,
  booktitle={Proc. Interspeech 2008},
  pages={1084--1087},
  doi={10.21437/Interspeech.2008-334}
}