Biographical Sketch: H. Timothy Bunnell, Ph.D. Applied Science and Engineering Laboratories A.I. duPont Institute P.O. Box 269 Wilmington, DE 19899 Phone: (302)651-6830 FAX: (302)651-6895 Born: August 12, 1948 Married: Susan J. Purdy (dec.) (June 10, 1972) Martha H. Stow (March 25, 1995) Children: Matthew S. Bunnell (June 14, 1980) Jessica D. Bunnell (March 9, 1984) Ph.D. 1983 The Pennsylvania State University, Psychology M.S. 1978 The Pennsylvania State University, Psychology B.S. 1975 The University of Maryland, Psychology RECENT EMPLOYMENT HISTORY 1989 - present. Director, Speech Research Program - Applied Science and Engineering Laboratories, Alfred.I. duPont Institute, Wilmington, Delaware. Research in the speech production and perception concentrating on factors effecting speech intelligibility, and the enhancement of disordered speech; computer analysis and synthesis of speech. 1991 - present. Research Associate Professor - Departments of Computer and Information Science and Linguistics, University of Delaware, Newark, DE. Teaching introductory and upper-level Acoustic Phonetics. Supervising Graduate and Undergraduate student research projects. Serving on Masters Thesis and Doctoral Dissertation committees. 1989 - 1991. Adjunct Assistant Professor - Department of Computer and Information Sciences, University of Delaware, Newark, DE. Supervising Master's Thesis research related to speech and other linguistic signal processing. 1983 - 1989. Research Scientist - Sensory Communication Research Laboratory, Gallaudet College, Washington, DC. Research in the speech perception of hearing impaired and deafened individuals; computer analysis and synthesis of speech. Professional Affiliations: Acoustical Society of America; American Association of Phonetic Sciences; Association of Computing Machinery; European Speech Communication Association; ISAAC; Linguistic Society of America; Sigma Xi RECENT PROFESSIONAL SERVICE 1995 - Chair 1996 International Conference on Spoken Language Processing (ICSLP 96). 1989 - Member, Speech Communication Technical Committee, Acoustical Society of America. Spring, 1991 Meeting Coordinator, Speech Communication Technical Committee, 121st Meeting of the Acoustical Society of America. Spring, 1991 Chair, Technical Session on Word and Sentence Effects. 121st Meeting of the Acoustical Society of America. Spring, 1990 Chair, Synthesis and Recognition Technical Session 119th Meeting of the Acoustical Society of America. CURRENT GRANT SUPPORT NINDRR - Rehabilitation Engineering Research Center on Augmentative and Alternative Communication. Microsoft Corporation - Automatic diphone extraction for selected-voice speech synthesis. PUBLICATIONS Selected Articles: Bunnell, H. T. (1990). On Enhancement of Spectral Contrast in Speech for Hearing Impaired Listeners. J. Acoust. Soc. Am. 88, 2546-2556. Bunnell, H. T. and Martin, J. G. (1986). Transforming speech to improve perceptual clarity. Proceedings Avios '86 Voice I/O Systems Applications Conference, 589-603. Hamlet, S. L., Bunnell, H. T., and Struntz, B. (1986). Articulatory asymmetries. J. Acoust. Soc. Am., 79, (4), 1164-116. Martin, J. G. and Bunnell, H. T. (1981). Perception of anticipatory coarticulation. J. Acoust. Soc. Am., 69, 559-567. Martin, J. G., and Bunnell, H. T. (1982). Perception of anticipatory coarticulation effects in vowel-stop-vowel sequences. J. Experimental Psychology: Human Perception and Perfor- mance, 8, 473-488. Pickett, J.M., Bunnell, H.T., and Revoile, S.G. (1994). Phonetics of Intervocalic Consonant Perception: Retrospect and Prospect. In Press. Phonetica. Revoile, S. G., Bunnell, H. T., Pickett, J. M. (1987). On the prediction of phoneme recognition by the hearing impaired. Proceedings of the 11th International Congress of Phonetic Sci- ences, (vol. 4, pp. 344-349). Tallinn, Estonia, U.S.S.R.: Academy of Sciences of the Estonian S. S. R. Yeni-Komshian, G.H., and Bunnell, H.T. (1991). Perceptual evaluations of spectral and tem- poral modifications of deaf speech. Proceedings of the XII International Congress of Pho- netic Sciences, August 21, 1991; Aix-en-Provence, France. Selected Published Abstracts, Software and Conference Presentations: Bunnell, H. T. (1984). Vowel recognition in the absence of formant cues: Dynamic contribu- tions to perception. J. Acoust. Soc. Am., 75 S1, S86. Bunnell, H. T. (1992). EDWave - A PC-based program for interactive graphical display, mea- surement and editing of speech and other signals. Software presented at the 66th Annual Meeting of the Linguistic Society of America. Bunnell, H.T., Kadambe, S., Polikoff, J., Peters, S.M., and Mineo, B. (1992). Progress in Com- puter Enhancement of Dysarthric Speech. Paper presented at the Fifth Biennial ISAAC conference. Bunnell, H. T. and Martin, J. G. (1985). Toward improving speech intelligibility. J. Acoust. Soc. Am., 77, S1. Bunnell, H. T. and Pickett, J. M. (1986). Amplitude versus frequency modulation in speech perception. J. Acoust. Soc. Am., 80S1 S124. Bunnell, H.T. and Polikoff, J. (1991). Effects of emphatic stress and speaking mode on articu- latory organization. J. Acoust. Soc. Am., 89, Pt. 2. Mahshie, J.J., Bunnell, H.T., and Graney, S. (1990) Deaf and normal-hearing speakers' anticipatory coarticulation during VCV sequences. Paper presented at the ASHA Conference Nov. 26-29, Takoma, Washington. Hamlet, S. L. and Bunnell, H. T. (1984). Asymmetries in placement and timing of alveolar tongue contact patterns of /s/ and /l/. J. Acoust. Soc. Am., 75 S1, S24. Peters, S. M.. and Bunnell, H. T. (1991). Adjusting dysarthric speech timing using neural net- works. J. Acoust. Soc. Am., 89, S1. Will, C.A., and Bunnell, H.T. (1989). Representation, Scaling and Time Invariance in Neural Network Speech Recognition: Evidence from the Recognition of Stop Consonants and Vowels. IJCNN, June 19-22, Washington, DC. Vogel, I. Bunnell, H.T., & Hoskins, S. (1993). Phonology and Phonetics of the Rhythm Rule. Paper presented at the Fourth Conference on Laboratory Phonology, August 11 - 14, 1993. Oxford University, Oxford, U.K.