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References for further reading:
Bradlow, A. R., and Alexander, J. A. (2007). “Semantic and pho- netic enhancements for speech-in-noise recognition by native and non-native listeners,” J. Acoust. Soc. Am. 121, 2339–2349.
Boothroyd, A., Erickson, F., and Medwetsky, L. (1994). “The hearing aid input: A honemic approach to assessing the spectral distribution of speech,” Ear and Hearing 15, 432-442.
Erwin, L. J., George, E. L. J., Zekveld, A. A., Kramer, S. E., Goverts, S. T., Festen, J. M., and Houtgast, T. (2007). “Auditory and nonauditory factors affecting speech reception in noise by older listeners,” J. Acoust. Soc. Am. 121, 2362–2375.
Healy, E. W., and Bacon, S. P. (2007). “Effect of spectral frequen- cy range and separation on the perception of asynchronous speech,” J. Acoust. Soc. Am. 121, 1691-1700.
Hornsby, B. W. Y., and Ricketts, T. A. (2006). “The effects of hearing loss on the contribution of high- and low-frequency speech information to speech understanding. II. Sloping hearing loss,” J. Acoust. Soc. Am. 119, 1752–1763.
Humes, L. E., Lee, J. H., and Coughlin, M. P. (2006). “Auditory measures of selective and divided attention in young and older
adults using single-talker competition,” J. Acoust. Soc. Am. 120, 2926–2937
Levi, S. V., Winters, S. J., and Pisoni, D. B. (2007). “Speaker-inde- pendent factors affecting the perception of foreign accent in a second language,” J. Acoust. Soc. Am. 121, 2327–2338.
Sommers, M. S., and Barcroft, J. (2006) “Stimulus variability and the phonetic relevance hypothesis: Effects of variability in speak- ing style, fundamental frequency, and speaking rate on spoken word identification,” J. Acoust. Soc. Am. 119, 2406-2416.
Studebaker, G. A., Sherbecoe, R. L., McDaniel, D. M., and Gwaltney, C. A. (1999). “Monosyllabic word recognition at high- er-than-normal speech and noise levels,” J. Acoust. Soc. Am. 105, 2431-2444.
Van Engen, K. J., and Bradlow, A. R. (2007). “Sentence recogni- tion in native- and foreign-language multi-talker background noise,” J. Acoust. Soc. Am. 121, 519–526.
Warren, R. M., Bashford, J. A. and Lenz, P. W. (2005). “Intelligibilities of 1-octave rectangular bands spanning the speech spectrum when heard separately and paired,” J. Acoust. Soc. Am. 118, 3261–3266.
Robert Schlauch earned a bachelors degree from the University of Hawaii in 1980 and a PhD in Speech and Hearing Science in 1987 from the University of Washington. After a post doctoral fellowship at the University of California (Berkeley), he was hired by the University of Minnesota in 1989 where
he works today as an associate professor. His research inter- ests include intensity perception (psychoacoustics), cognitive factors influencing hearing, and diagnostic audiology. He is a fellow of the Acoustical Society of America.
44 Acoustics Today, July 2007