The present study investigated whether the articulation ability and speech rate control of people who stutter (PWS) were different from people who do not stutter (PWNS). Twenty PWS and 20 PWNS performed oral reading and speech shadowing. Speech / articulation rates, the number and duration of pauses were analyzed. PWS showed slower articulation rate and with more pauses than PWNS during oral reading, but not during speech shadowing. This suggests that PWS control speech differently under the two conditions. Furthermore, PWS showed a significantly negative correlation between articulation rate and number of pauses during oral reading.
The present study utilized Japanese and Mandarin Chinese emotional speech representing eight emotion types (happy, hot anger, cold anger, sad, surprised, afraid, disgusted, neutral) from Japanese native speakers and Mandarin Chinese learners of L2 Japanese, to clarify crosslinguistic differences in emotional speech. Spectral analysis revealed different patterns of utterances by Japanese native speakers and Mandarin Chinese learners. Chinese learners tend to use a tenser glottal configuration to express cold anger, happy, hot anger and sad. Furthermore, open quotient-valued voice range profiles based on Electroglottography signals suggest that the emotional speech from Mandarin Chinese learners are affected by their mother tongue.
In the Onotsu dialect of Kikai Ryukyuan, address nouns such as kinship terms and personal names exhibit peculiar behavior in terms of vowel length alternation and tonal patterns. This paper describes the phonological characteristics of address nouns, and argues that vocative falling intonation effected diachronic changes in the lexical features of the address nouns. The hypothesis proposed in this paper is that address nouns underwent two sequential changes: accent shift, and vowel lengthening. The latter is presumed to have been partly prevented by the least phonologically independent particles, which has resulted in the peculiar characteristics of address nouns.
The voicing contrast for Japanese word-initial stops is primarily realized as differences in the Voice Onset Time (VOT). However, previous studies have pointed out that VOT alone cannot differentiate the two stop categories because their VOT values overlap. A few studies have attempted to find another characteristic by examining post-stop fo and voice quality but have failed to find an answer. This study investigated VOT and post-stop fo using data drawn from eighty-two native speakers from four regions. The result shows that post-stop fo differences can distinguish the two categories, but not alone. The acoustic space of VOT and post-stop fo demonstrates a clear distinction between the two categories, while the effect of VOT and post-stop fo on voicing contrast differs from region to region. The result of this study provides evidence that post-stop fo functions as an acoustic characteristic responsible for voicing contrast along with VOT.