An EGG study on global and local vocal effort changes in German: preliminary results

The aims of this study are (1) to compare the effects of global vocal effort changes on voice source parameters with effects of focus and word stress, (2) to tease apart the influences of subglottal pressure and vocal fold tension by independently varying sentence accent and word stress. Therefore two EGG experiments were carried out. Results on the calculated voice source parameters indicate that in the absence of f0 differences word stress is indeed produced with a higher subglottal pressure. For focus, both seems to be involved: subglottal pressure and vocal fold tension. 1