Diane Kewley-Port, Director Diane Kewley-Port Lab Members Tessa Bent Dan Fogerty Jae Hee Lee Bill Mills Eric Oglesbee Alums Zach Burkle Sarah Hargus Ferguson Shawn Goodman Chang Liu Kyoko Nagao Kanae Nishi Carrie Richie
	Research goals in the Speech Psychophysics Laboratory include modeling the basic capabilities of the auditory system to process the acoustic details of speech and then determining the relation of these processes to the perception of speech in normal discourse. The current focus is on the processing of vowels by listeners with normal or impaired hearing.

Fogerty, D. & Kewley-Port, D. (2008). Perceptual contributions of the consonant-vowel boundary to sentence intelligibility, Submitted to J. Acoust. Soc. Am.

Fogerty, D. & Kewley-Port, D. (2008) Investigating the consonant-vowel boundary: Perceptual contributions to sentence intelligibility, POMA, Vol. 2. Presented at the 154th Meeting of the Acoustical Society of America, New Orleans, LA.

Lee, J.H. & Kewley-Port, D. (2008). Intelligibility of interrupted sentences at subsegmental levels in young normal-hearing and elderly hearing-impaired listeners. Submitted to J. Acoust. Soc. Am.

Kewley-Port, D., Burkle, T.Z. and Lee, J.H. (2007). Contribution of consonant versus vowel information to sentence intelligibility for young normal-hearing and elderly hearing-impaired listeners. J. Acoust. Soc. Am., 122, 2365-2375.

Click here for sample sentences in .ppt file for the above studies.

Nishi, K. and Kewley-Port, D. (2008). Nonnative Speech Perception Training Using Vowel Subsets: Effects of Contrast Choice and Order of Training. J. Speech-Language-Hearing Res., in press.

Richie, D. and Kewley-Port, D. (2008). The effects of auditory-visual vowel training on speechreading performance. J. Speech-Language-Hearing Res., in press.

Kewley-Port, D., Humes, L.E.,  Fogerty, D. and Kinney, D. (2008). Performance on auditory temporal-processing tasks for speech and non-speech stimuli by young and elderly listeners. Presented at the 155th Meeting of the Acoustical Society of America, Paris, France.

Oglesbee, E. and Kewley-Port, D. (2008). Estimating vowel formant discrimination thresholds using a single-interval classification task. Submitted to J. Acoust. Soc. Am.

Ferguson, S. and Kewley-Port, D. (2008). Talker differences in clear and conversational speech: Acoustic characteristics of vowels.J. Speech-Language-Hearing Res., 50, 1241-1255. 

Nishi, K. and Kewley-Port, D. (2007). Training Japanese Listeners to Perceive American English Vowels: Influence of Training Sets. J. Speech-Language-Hearing Res., 50, 1496-1509. 

Liu, C. and Kewley-Port, D. (2007). Factors affecting vowel formant discrimination by hearing-impaired listeners. J. Acoust. Soc. Am, 122, 2855-2864.

Burkle, T. Z. (2004) Contribution of consonant versus vowel information to sentence intelligibility by normal and hearing-impaired listeners. Unpublished masters thesis, Indiana University.

Last updated on October 9, 2008