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Dr. Cornett, the inventor of Cued Speech (1966),
defined three (3) mouth shapes as distinguishing vowel
features of spoken English (see Visual
Components of the Cued Speech System). He did not include
mouth shapes for consonant features in his system. Continuing
research has provided the classification of seven (7) consonant
"mouth shapes" as well as other non-manual signals
inherent to cued American English (Fleetwood
and Metzger, 1998). |
When we speak naturally, we don't
produce individual sounds but whole strings of sounds, which
form words
(Language Files, p. 80).
