ISCA Archive Eurospeech 1999
ISCA Archive Eurospeech 1999

Characterization of speech during imitation

Gal Ashour, Isak Gath

The present work analyzes some effects of imitation on the produced voice, focusing on both macro-level parameters such as the pitch contour, as well as on micro-level acoustical structures such as the formant frequencies. The following speech production characteristics are addressed: (1) Tracking of pitch contours is carried out using a super-resolution algorithm for pitch detection. (2) Formant frequencies are estimated for the vowel phonemes using a linear prediction technique, approximating the vocal tract by an all-pole model. (3) Cross-sectional tube areas of the vocal tract are estimated using inverse Levinson algorithm. A strong tendency of pitch contours during imitation to resemble those of the target speaker was found. A significant tendency of the second and third formants during imitation to resemble those of the target person was identified. A tendency of the cross sectional areas to be smaller during imitation was found.


doi: 10.21437/Eurospeech.1999-277

Cite as: Ashour, G., Gath, I. (1999) Characterization of speech during imitation. Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999), 1187-1190, doi: 10.21437/Eurospeech.1999-277

@inproceedings{ashour99_eurospeech,
  author={Gal Ashour and Isak Gath},
  title={{Characterization of speech during imitation}},
  year=1999,
  booktitle={Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999)},
  pages={1187--1190},
  doi={10.21437/Eurospeech.1999-277}
}