Phonetic Description of the Tones of Monosyllabic Words in Donglei Kam:Exploring Acoustic Properties of the Ciyin Tonal Register in Kam
This study conducted statistical analyses of the pitch,duration,and phonation of tones of monosyllabic words in Donglei洞雷Kam via the growth curve analysis and linear mixed-effect model approaches.We aim to explore the tonal pattern of Donglei Kam and to describe phonetic characteristics of lexical tones that are part of the Ciyin次阴tonal register.Results showed that Donglei Kam had a tonal system of thirteen lexical tones,including three level tones,two rising tones,seven falling tones,and one peaking tone.Compared with the Quanyin全阴tonal register,all independent tones of the Ciyin tonal register in Donglei Kam exhibited a more rising contour.Furthermore,only the checked tones(with short vowels)in the Ciyin tonal register displayed a higher degree of breathiness at their onset stages,manifesting acoustically higher H1*-A1*values and lower CPP values.This study also discussed the correspondence between the unchecked and the checked tones in Donglei Kam,as well as the underlying mechanisms of tonal changes.
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