Vowel reduction has been studied for years. It is a universal phenomenon that reduces the distinction of vowels in informal speech and unstressed syllables. How consonants behave in situations where vowels are reduced is not known. In this paper we compare global durational and spectral data for both intervocalic consonants and vowels uttered in read speech with otherwise identical segments from spontaneous speech. On this global level, it shows that consonants behave like vowels when the speaking style is changed. However, all differences are less pronounced for consonants than for vowels.
Bibliographic reference. Son, Rob J. J. H. van / Pols, Louis C. W. (1995): "What does consonant reduction look like, if it exists?", In EUROSPEECH-1995, 1909-1912.