Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Voice Source Parameters in Continuous Speech, Transformation of LF-Parameters

Gunnar Fant, Anita Kruckenberg, Johan Liljencrants, Mats Bavegdrd

Department of Speech Communication and Music Acoustics, KTH, Sweden

This is a report on a data reduction scheme for studies of voice source characteristics in connected speech and some results from speech analysis within a segmental and prosodic frame. It is shown that essentials of glottal wave shape are included in the ratio of peak glottal volume velocity U0 to the negative peak Ee of glottal flow derivative. Default values of the complete set of LF-source parameters F0, Ee, Ra, Rk, Rg can be predicted from F0, Ee and U0/Eg. Of special importance is the relation of Ee and U0 to F0. Additional adjustments related to voice type and contextual demands are included. Simplified inverse filtering methods for extraction and direct recording of U0(t) and Ee(t) in synchrony with F0(t) are described. The dependency of source parameters on voice fundamental frequency F0, global phrase structure, loudness, stress and accents, and the influence of segmental type and supraglottal and subglottal interaction effects are briefly discussed.

Full Paper

Bibliographic reference.  Fant, Gunnar / Kruckenberg, Anita / Liljencrants, Johan / Bavegdrd, Mats (1994): "Voice source parameters in continuous speech, transformation of LF-parameters", In ICSLP-1994, 1451-1454.