First International Conference on Spoken Language Processing (ICSLP 90)

Kobe, Japan
November 18-22, 1990

A Comparison of Egg and a New Automatic Inverse Filtering Method in Phonation Change From Breathy to Normal

Paavo Alku (1), Erkki Vilkman (2), Unto K. Laine (1)

(1) Helsinki University of Technology, Acoustics Lab., Espoo, Finland
(2) University of Oulu, Phoniatric Dept., Oulu, Finland

The analysis of the glottal excitation in the case when phonation slides from breathy to normal has been studied in this paper. The performance of a developed analysis tool, the AIF-method, has been compared to the results given by the EGG-signal. The AIF-method yielded reliable glottal pulse forms for all the speech material that was studied. Even in the case of very breathy phonation the wave form given by the AIF-method was reliable whereas the information given by the EGG-analysis was not relevant. The correspondence between the EGG-signal and the result obtained by the AIF-method concerning the instant of closure and the maximum opening of the glottal cycle was evident.

Full Paper

Bibliographic reference.  Alku, Paavo / Vilkman, Erkki / Laine, Unto K. (1990): "A comparison of egg and a new automatic inverse filtering method in phonation change from breathy to normal", In ICSLP-1990, 197-200.