http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1162851
IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, OCTOBER 1976
Dennis H. Klatt was born in Milwaukee, WI, in 1938. He received the B.S. and M.S. degrees in electrical engineering from Purdue University, Lafayette, IN, in 1960 and 1961, respectively, and the Ph.D. degree in communication sciences from the University of Michigan, Ann Arbor, in 1964. Since 1965 he has served on the faculty of the Massachusetts Institute of Technology, Cambridge, and since 1969 has been a Research Associate at the Speech Communication Laboratory, Research Laboratory of Electronics, Massachusetts Institute of Technology. He has published papers on various aspects of speech communication, including speech recognition, speech production, the perception of rapid spectrum changes, and the speech imitation abilities of mynah birds. His current research efforts are concerned with speech synthesis by rule, perception of speech and speech-like sounds, and the phonological and acoustic-phonetic structure of English sentences. Dr. Klatt is a Fellow of the Acoustical Society of America and a member of the American Association of Phonetic Sciences. He is Associate Editor of the Journal of the Acoustical Society of America.
https://www.karger.com/Article/Pdf/261833
Obituary
Phonetica 1989; 46: 126-127
Dennis H. Klatt, a noted researcher in speech and hearing science, died in Cambridge, Mass., on December 30, 1988, after a long struggle with cancer. A graduate in electrical engineering at Purdue University in 1961, Dennis did his graduate work at the University of Michigan, where he was awarded his PhD in communication sciences in 1964. He joined the Massachusetts Institute of Technology as an assistant professor in 1965, becoming a Senior Research Scientist in 1978.
An author of more than 60 scientific papers, Dennis was working on a book on acoustic-phonetic characteristics of English at the time of his death. He recently was awarded the Silver Medal in Speech Communicalion by the Acoustical Society of America for ‘fundamental and applied contributions to the synthesis and recognition of speech’, and the John Price Wetherill Medal by the Franklin Institute, both in 1987. ...
The area where Dennis’ work has probably had the greatest impact, at least in recent years, is speech synthesis by machine. He developed a flexible computer-based synthesizer that can generate sounds to be used as stimuli in basic studies of human speech perception. The software for his synthesizer has been available to research laboratories that are active in these areas, making possible new quantitative research on the processes of auditory and speech perception. With this synthesizer as a base, he developed a complete system for synthesis of speech from English text. His research on speech synthesis has led to a detailed specification of rules for segmental durations in English. Throughout his career Dennis retained a keen interest in seeing the results of his work applied to the special needs of blind and other handicapped persons. ...
Naturally quiet and sensitive, Dennis harbored a deep aversion to prejudice or intolerance of any sort and he remained a committed supporter of the American Civil Liberties Union throughout his life. For relaxation, Dennis loved to do elaborate home repair projects, play tennis and squash, paint and listen to Mozart. Dennis is survived by his wife Mary of Brookline, Mass., his daughter Laura, a sophomore at Wesleyan University, his mother Dorothy and brother Gary, both of Whitewater, Wisc.
Stephen Hawking's daughter Lucy interviews Dennis Klatt's daughter Laura - the Klatt segment starts at 13:40
(A sad irony: Dennis Klatt died at 50, having lost his voice to cancer)
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