PEOPLE

Charles S. Watson, Ph.D., President, Professor Emeritus of Speech and Hearing Sciences at Indiana University.
Chuck is an auditory psychophysicist who has spent many years studying the hearing of complex sounds and individual differences in auditory perception. In addition, in 1979 he and his colleagues at the Boys' Town Institute built the first speech training system in the world to use automatic speech recognition technology. The Indiana Speech Training Aid is a highly evolved version of this first system. His most recent research has dealt with individual differences in the auditory abilities of children and adults, and with the prediction of academic success in grade school children on the basis of sensory, cognitive, and linguistic abilities. He, Gary Kidd, and Larry Humes have recently developed a US version of the telephone screening test for hearing impairment, modeled after the test invented in Holland by Dr. Cas Smits and colleagues.

Diane Kewley-Port, Ph.D., Vice-President, Professor of Speech and Hearing Sciences at Indiana University.
Diane's areas of special expertise are speech acoustics, digital signal processing, and speech perception. In addition to her work on the design and evaluation of CDT's speech training systems, Diane's current research is on vowel production and perception, including second-language speech. She has always conducted her research using computers. When the programs for performing acoustic analyses of speech sounds didn't exist, she wrote them. Reently she has been very busy serving her term as president of the Accoustical Society of America.

Daniel P. Maki, Ph.D., Secretary/Treasurer, Professor Emeritus of Mathematics at Indiana University.
Dan's specialization is finite mathematics and its applications. He has had a working interest in speech recognition algorithms since a sabbatical spent at Interstate Electronics in the 1970's. His team there developed an isolated word recognizer that used a coding scheme that reduced the acoustic representation of a word to 256 bits. That this recognizer actually produced very good results remains a milestone. He brings this experience to the development of CDT's speaker-dependent recognition technologies.

Roy Sillings, M.S., Systems Designer/Artistic Director/Programmer.
Roy's graduate degree is in Instructional Systems Technology, and he is a whiz at designing computer-based training systems. As if that isn't enough, he also writes a lot of the code to implement the system designs. As if that isn't enough, he also creates many of the graphics in our training systems. To top it all off, he reads Greek and Latin and has had his paintings shown at the Indiana University Art Museum.