ISCA Workshop on Multilingual Speech and Language Processing (MULTILING 2006)

Center for Language and Speech Technology, Stellenbosch University, Stellenbosch, South Africa
April 9-11, 2006

A Study of Speech Pauses for Multilingual Time-Scaling Applications

Mike Demol (1), Werner Verhelst (1), Piet Verhoeve (2)

(1) Vrije Universiteit Brussel, dept. ETRO-DSSP, Brussels, Belgium
(2) Corporate R&D dept., TELEVIC nv, Izegem, Belgium

In this paper we present a study of silent speech pauses at three different speaking rates, based on the analysis of four hours of read speech in six European languages. Our results confirm earlier observations by Campione et al. that the logarithmic duration of the pauses can be well approximated by a bi-Gaussian distribution and we found this also to be true at slow and fast speaking rates. Our analysis further shows that, as far as the long speech pauses are concerned, similar strategies for speaking slowly or rapidly are used in all languages considered. For speaking slowly, speakers increase the total amount of pauses and they effectively use a wider range of pause durations. Overall, however, besides using more pauses, there appeared to be no striking change in the average pause duration, nor in the variance of the distribution of the pause durations. For speaking rapidly, speakers decrease the amount of pauses used and they refrain from using the longest pauses that occur in their normal speech. Overall, this results in a lower average duration of the pauses and a smaller variance of the pause durations.

Full Paper

Bibliographic reference.  Demol, Mike / Verhelst, Werner / Verhoeve, Piet (2006): "A study of speech pauses for multilingual time-scaling applications", In MULTILING-2006, paper 011.