15th International Congress of Phonetic Sciences (ICPhS-15) Barcelona, Spain August 3-9, 2003

Production of Voiced Ingressive Plosives by Deaf Speakers: An Analysis by Synthesis

James J. Mahshie (1), Corine Bickley (2)

(1) Gallaudet University, USA
(2) Massachusetts Institute of Technology, USA

The production of plosive consonants with an ingressive airstream is an often-encountered speech characteristic of deaf individuals. The present research examined the production of ingressive plosives employing an analysis-by-synthesis strategy. Production of ingressive plosive patterns appears related to specific alterations in synthesizer control parameters: supralaryngeal vocal-tract volume, glottal aperture, and occlusion duration. It is hypothesized that production of ingressives by deaf speakers in this study resulted from laryngeal lowering to increase vocal-tract volume, glottal closure during the occlusion interval, and extended occlusion duration.

Full Paper

Bibliographic reference.  Mahshie, James J. / Bickley, Corine (2003): "Production of voiced ingressive plosives by deaf speakers: an analysis by synthesis", In ICPhS-15, 3257-3260.