14th International Congress of Phonetic Sciences (ICPhS-14) San Francisco, CA, USA August 1-7, 1999

Estimating Amount of Information Conveyed Through Speechreading

Shizuo Hiki (1), Kazuya Imaizumi (1), Yumiko Fukuda (2)

(1) Graduate School of Human Sciences, Waseda University, Tokorozawa, Japan
(2) Research Institute, National Rehabilitation Center for the Disabled, Tokorozawa, Japan

A strategy for estimating amount of information conveyed through speechreading and their difference among languages is proposed. In this strategy, first, it is assumed that a set of basic vocabulary involves the same amount of linguistic information in any language. In the process of composing the set of basic vocabulary in each language, trading occurs among selections of vowels and consonants, and compositions of syllables or words. These tradings cause difference among each other language in amount of speechreading information. In order to estimate the amount of information in each stage quantitatively, amount of decrease of information due to the decrease of number of phonetic symbols is calculated. By summing the amounts of decrease of information in a language, it becomes possible to estimate the difference of speechreading information among languages. Charts which relate production and discrimination of vowel and consonant visemes are devised for those estimation.

Full Paper

Bibliographic reference.  Hiki, Shizuo / Imaizumi, Kazuya / Fukuda, Yumiko (1999): "Estimating amount of information conveyed through speechreading", In ICPhS-14, 843-844.