September 22-25, 1997
In this paper an extension of the lip-tube experiment proposed by Savariaux et al. (1990) is presented and analyzed. The question underlying the design of this experiment is whether speakers are able to produce an [u] with a large lip opening. Nine native speakers of French repeated the original experiment, and then were asked to produce the vowel [u] starting from [o] vocal tract configuration. It was shown that more subjects achieved the compensation when they shifted their articulation from [o] to [u]. The issue of a possible constraint imposed by a learned standard articulatory pattern is discussed in relation with the notion of the internal representation of the articulatory-to-acoustic relations. Proposals in favor of a standard pattern for [u] that would be velopalatal rather than velopharyngeal are discussed.
Bibliographic reference. Savariaux, Christophe / BoŽ, Louis-Jean / Perrier, Pascal (1997): "How can the control of the vocal tract limit the speaker's capability to produce the ultimate perceptive objectives of speech? 1063", In EUROSPEECH-1997, 1063-1066.