Bimodality of human speech
Department of Informatics
Aristotle University of Thessaloniki
“Speech is rather a set of movements made audible than a set of sounds
produced by movements “ (Stetson, 1928)
? The audio and visual modality of speech are complementary.
- E.g.:
- in the acoustic domain, /p/, /t/ and /k/ are very similar,
- but /p/ and /k/ are easily distinguishable in visual modality: closed versus
open mouth