Conversational Grunts in English: Home Page

I'm interested in Sound Symbolism again. This comes from computer geeks trying to make computers more fun to talk to. Which raises questions about why of course, but let's leave that aside for a moment because what they discover is relevant to my understanding of the meaning which inhers in vocal sounds. Conversational Grunts in English: Home Page
(With nuts to all Saussurean linguists!)