Second International Conference on Spoken Language Processing (ICSLP'92)
Banff, Alberta, Canada
Time pressure is used as a new method to isolate the important phonetic aspects of Dutch accent lending pitch movements. The accent lending rise (T) and fall ('A') were realised under three types of time pressure: (i) normal vs. fast speech, (ii) on a long vs. short vowel, (iii) and with single vs. multiple pitch movements within the same time span. The question is how the pitch movements are adjusted to the shrunken space, assuming that the most important aspects are kept unimpaired. Effects on excursion size, duration and steepness of pitch movements are examined for the three types of time pressure. Also, the position within the pitch register in normal and fast speech is compared. A search for 'anchor points' for the pitch rise and pitch fall is carried out, i.e., synchronization points with some aspect of the segmental structure, which remain the same under all conditions. We found that the pitch rise is time compressed under all pressure types. Time compression is strongest for multiple pitch move- ments. In fast speech the pitch movements are raised in register. For the start of the accent lending rise an anchor point is found in the syllable onset. For the fall no anchor points are found.
Bibliographic reference. Caspars, J. / Heuven, Vincent J. van (1992): "Phonetic properties of dutch accent lending pitch movements under time pressure", In ICSLP-1992, 731-734.