15th International Congress of Phonetic Sciences (ICPhS-15)
The acoustic and perceptual characteristics of F2 movement in the diphthong [aɪ] in a Midwestern variety of American English are examined. The acoustic pattern of preconsonantal lengthening in 'bide' is investigated applying an ERB-based segmentation technique, which utilizes a constant ΔF. Listeners' response to dynamic information in the diphthongal onglide and offglide is tested. Data indicate that the diphthong [aɪ] in this variety of American English has a bipartite structure, consisting of a target and a gliding part. The terminal frequency values of the diphthong are not essential characteristics, as evident from the acoustic lengthening pattern in 'bide' and from perceptual response to the formant frequency change in this frequency range.
Bibliographic reference. Jacewicz, Ewa / Fujimura, Osamu / Fox, Robert A. (2003): "Dynamics in diphthong perception", In ICPhS-15, 993-996.