The ability to map similar sounding words to different meanings alone is far from enough for successful speech processing. To overcome variability in the speech signal, young learners must also recognize words across surface variations. Previous studies have shown that infants at 14 months are able to use variations in word-internal cues (i.e.,…

Purpose: Although variability of training materials has the potential to benefit the learning of lexical tones, the benefit is contingent on an individual's pitch aptitude. Previous studies did not segregate immediate learning and consolidation after an overnight interval, and little is known about how pitch aptitude differences affect…

This dissertation investigates Voice Onset Time (VOT), which serves as an essential property for differentiating plosive consonants in L1 and L2 Mandarin Chinese. It surveys VOT variations and demonstrates that they are affected by several phonetic and phonological properties, e.g., lexical tone, place of articulation (POA), speech rate,…

This paper investigates the phonology of L2 speech and its impact on intelligibility in English as a Lingua Franca (ELF) contexts. Many studies have considered speaker-related characteristics, such as speech styles and pronunciation features, that influence the intelligibility of L2 speech for both nonnative speakers (NNS) and native speakers…

While tonal systems have typically been classified as "pitch accent" or "true tonal", there is growing evidence that systems instead have a variety of features which vary across languages, rather than falling into discrete categories. These category labels have been used widely in literature about the languages of New Guinea,…

This article reports a study that aimed to find out whether F0 patterns of L2 English produced by Vietnamese speakers are different to those of native English speakers, whether the non-native F0 patterns are transferred from Vietnamese, and to what extent English and Vietnamese F0 profiles differ. Ten native/L1 Australian English speakers, 20…