15th International Congress of Phonetic Sciences (ICPhS-15)

Barcelona, Spain
August 3-9, 2003


Articulator Movements in Ventriloquists' Speech

John R. Westbury, Clarissa J. Weiss

University of Wisconsin-Madison, USA

Tongue, lip and jaw flesh-point movements were recorded together with the speech wave from two American English-speaking ventriloquists, each talking normally and then practicing their craft. These recordings were analyzed to describe and quantify changes in articulation arising from self-imposed perturbations of lip and jaw movements during ventriloquism. Results show a variety of apparent compensations involving changes in magnitude and timing of movements, and the positions of articulators. Some compensations are easy to understand from the perspective of a theory of speech production in which acoustic properties of speech sounds are a primary goal. Information from this study may have a practical benefit for disordered patients (e.g., with localized facial paralysis) who must maintain speech intelligibility in the context of diminished capacity for articulatory movements.

Full Paper

Bibliographic reference.  Westbury, John R. / Weiss, Clarissa J. (2003): "Articulator movements in ventriloquists' speech", In ICPhS-15, 1037-1040.