Acoustic Correlates of Prominence In Kala Lizu (Tibeto-burman)

Abstract

This study investigates acoustic correlates of prominence in Lizu (Tibeto-Burman). Lizu has been argued to have a hybrid prosodic system combining lexical tone on monosyllabic words and prominence patterns with stress-like and tonal characteristics on polysyllabic words, although empirical evidence is lacking. This study presents an acoustic investigation of the pitch patterns on disyllabic words in the Kala variety of Lizu (HL, HH, LH). Using the parameters of duration, intensity, and f0, it attempts to sort out different forms of prominence, and to explore their interaction with lexical tone. The measurements are taken from experimental data with eight Lizu speakers (4 male and 4 female). The acoustic results and statistical analyses suggest that the first syllable in Kala Lizu is the position of prominence in all three pitch patterns. Our results are consistent with interpreting the pitch pattern HL as more stress-like (with intensity as an acoustic correlate of stress) and the pitch patterns HH and LH as more tone-like (with stress cued by full realization of lexical tone). This study contributes to a better understanding of the prosodic organization of Kala Lizu and it also suggests methodology for further exploration of other Lizu varieties.