Sixth International Conference on Spoken Language Processing
(ICSLP 2000)

Beijing, China
October 16-20, 2000

Strategies of Vowel Reduction - A Speaker-Dependent Phenomenon

Christina Widera

Institut für Kommunikationsforschung und Phonetik (IKP), University of Bonn, Germany

In natural speech, a lot of inter- and intra-subject variation in the realisation of vowels is found. Perception experiments show that listeners can discriminate speaker-independent levels of vowel reduction. The question is whether all speakers used the same acoustic cues for signalling reduction levels. The acoustic realisation of reduction levels of the vowels [u:], [i:], and [a:] of three speakers were tested for their separability and their predictability using linear discriminant analysis, support vector machines, and artificial neural networks. The results indicate a speaker-dependent realisation of vowel reduction.


Full Paper

Bibliographic reference.  Widera, Christina (2000): "Strategies of vowel reduction - a speaker-dependent phenomenon", In ICSLP-2000, vol.1, 552-555.