Interspeech'2005 - Eurospeech
This is a report summarising results from studies of true subglottal pressure, supraglottal pressure and speech wave data. We have derived co-variation patterns, which allow a prediction of intensity from subglottal pressure and F0, and conversely a prediction of a subglottal pressure contour from F0 and intensity. Of special interest is the significance of a mid-point in a speakers' available F0 range at which the relations change. In the lower F0 range subglottal pressure and intensity rise with F0, whilst in the upper part they tend to saturate. In connected speech we find a build-up of subglottal pressure well in advance of a stressed word, and a decay of subglottal pressure in the final part of a phrase starting already in the falling branch of an F0 peak.
Bibliographic reference. Fant, Gunnar / Kruckenberg, Anita (2005): "Covariation of subglottal pressure, F0 and intensity", In INTERSPEECH-2005, 1061-1064.