5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

Articulatory, Acoustic and Perceptual Aspects of Fricative-Stop Coarticulation

Noel Nguyen (1), Alan A. Wrench (2), Fiona Gibbon (2), William J. Hardcastle (2)

(1) FPSE, University of Geneva, Switzerland
(2) Queen Margaret College, Edinburgh, UK

Stops are not identified in the same way depending on preceding fricatives. According to Mann and Repp (1981), such context-dependent variations in the perception of stops originate from the influence of fricatives on how stops are produced. This study aimed further to explore this hypothesis. A first experiment showed that the effect of fricatives on the identification of stops tends to be confined to the most ambiguous stimuli, when a large range of acoustic cues to place of stop articulation is provided to the listener. In a second experiment, articulatory and acoustic data were gathered in the production of fricative-stop sequences. Although on the whole consistent with previous findings, our results indicate that many articulatory dimensions are brought into play in fricative-stop articulatory patterns, thus making it difficult to establish a direct link between the articulatory and perceptual levels.

Full Paper

Bibliographic reference.  Nguyen, Noel / Wrench, Alan A. / Gibbon, Fiona / Hardcastle, William J. (1998): "Articulatory, acoustic and perceptual aspects of fricative-stop coarticulation", In ICSLP-1998, paper 0533.