Alexander L. Francis
Research Interests / Training Areas:
- Speech perception
- Acoustic phonetics
- Cross-language and second language speech perception
- Lexical tone
- Listening effort
I earned my B.A. in Linguistics from the University of Illinois at Urbana-Champaign in 1991, completing one semester of study in Allgemeine und Indogermanische Sprachwissenschaft at the Ludwig-Maximilians-Universität München. I did my graduate work at the University of Chicago, earning an M.A. in Linguistics in 1993 and a dual Ph.D. in Cognitive Psychology and Linguistics in 1999. I completed a postdoctoral fellowship in the Department of Speech, Language and Hearing Sciences at the University of Hong Kong, and have been at Purdue since 2002.
I study speech perception, acoustic phonetics and cognitive hearing science, with a particular interest in the role of cognitive mechanisms in understanding speech under challenging conditions. My recent work has focused on cross-language, second language and accented speech perception, and speech perception by older listeners with and without hearing impairment. I have also studied the production, perception and learning of Cantonese lexical tones, and factors contributing to the intelligibility of synthetic speech.
Llanos, F., Dmitrieva, O., Shultz, A.A., & Francis, A.L. (2013). Auditory enhancement and second language experience in Spanish and English weighting of secondary voicing cues. Journal of the Acoustical Society of America, 134(3), 2213-2224.
Shultz, A.A., Francis, A.L., & Llanos, F. (2012). Differential cue weighting in perception and production of consonant voicing. Journal of the Acoustical Society of America, 132(2), EL95-EL101.
Kondaurova, M.V. & Francis, A.L. (2010). The role of selective attention in the acquisition of English tense and lax vowels by native Spanish listeners: Comparison of three training methods. Journal of Phonetics, 38(4), 569-587.
Zhang, Y. & Francis, A.L. (2010). The weighting of vowel quality in native and non-native listeners' perception of English lexical stress. Journal of Phonetics, 38(2), 260-271.
Francis, A.L. (2010). Improved segregation of simultaneous talkers differentially affects perceptual and cognitive capacity demands for recognizing speech in competing speech. Attention, Perception and Psychophysics, 72(2), 501-516.Francis, A.L., & Nusbaum, H.C. (2009). Effects of intelligibility on working memory demand for speech perception. Attention, Perception and Psychophysics,71(6), 1360-1374.