The design of CAST (Computer-Aided Speechreading Training).

The underlying theoretical assumptions, goals, design, and implementation of a Computer-Aided Speechreading Training system (CAST) are described as a case study in program design. This computerized speechreading assessment and training system simulates face-to-face intervention and is designed to be one component of a comprehensive aural rehabilitation program for preretirement adults with acquired mild-to-moderate hearing loss. The interactive, automated course consists of eight training lessons, each focusing on a particular viseme that is practiced by a modified discourse tracking method using viseme-specific texts.

[Interactive Microcomputer Method of Lipreading (MIMILLE): an interactive microcomputerized method of lipreading].

A computer-aided speechreading assessment and training system is presented. It is intended to be one component of a comprehensive aural rehabilitation program for preretirement adults with acquired mild-to-moderate hearing loss. Each lesson focuses on a different viseme which is practiced using the 'discourse tracking' method.

The effect of coarticulation on the role of transitions in vowel perception.

Sequences of the form V1bV2bV1 were recorded by a male speaker. From each sequence, three types of stimuli were edited out: (1) the medial vowel, from after the burst of the preceding stop to the start of the closure of the following stop; (2) the quasi-steady state of the medial vowel, and (3) the transitions alone of the medial vowel (complement to 2). The perception of each type of stimulus was examined in separate tests and the results were compared.

Coarticulation effects in lipreading.

Normal-hearing and hearing-impaired subjects with good lipreading skills lipread videotaped material under visual-only conditions. V1CV2 utterances were used where V could be /i/, /ae/ or /u/ and C could be /p/, /t/, /k/, /ch/, /f/, /theta/, /sh/, /sh/ or /w/. Coarticulatory effects were present in these stimuli.

Hindi stop consonants: an acoustic and fiberscopic study.

Fiberscopic films and audio recordings were made of two native speakers of Hindi, producing # Ci, iCi, iC # utterances where C was one of the four types of stops and affricates. The voiced unaspirated type showed voicing through the whole consonant and no ab-/adduction gesture. The other three types, in the intervocalic case, all showed an ab-/adduction gesture, but the timing and the amplitude of this gesture differed for the three types.