TALK TALK

Visemes: A viseme is a generic facial image that can be used to describe a particular sound. A viseme is the visual equivalent of a phoneme or unit of sound in spoken language. In its simplest form, there are two distinct motions in speech:

1. Open and closed motion of the jaw
2. the narrow and wide motion of the lips.  

They don’t necessarily occur at the same time, nor do they go all the way back and forth from one extreme to the other.  The open and closed motion generally lines up with a puppet motion of the jaw, or the flow of air for almost any sound being created.  The narrow and wide motions have more to do with the kind of sound being created.