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,…

The traditional Philadelphia allophonic /ae/ system (henceforth: PHL shown in (1) below) is characterized by a set of complicated conditioning factors and a dramatic acoustic distinction between the two allophones. In recent years, some Philadelphians have begun to exhibit a new allophonic system (NAS, shown in (2) below). Like PHL, NAS is…

Spanish [l] is characterized as clear, and is associated with a high second formant (F2) frequency and a large difference between F2 and the first formant (F1) frequencies. In contrast, English [l] is darker (with a lower F2 and a relatively smaller F2-F1 difference) and also exhibits contextual variation due to an allophonic velarization rule…

It has been recently argued that the particles in Colloquial Singapore English (CSE) constitute a grammatical category that actively draws new members to it. Drawing on distributional and collocational evidence, this paper establishes that CSE has a new particle, "ya". The paper then proceeds to analyse the discourse pragmatic function…

Function (i.e., grammatical) words very frequently lack word-level stress and display phonetic reduction relative to content (i.e., lexical) words. However, word-class (function vs . content) may not be the only factor that affects phonetic realization of function words; prosodic and syntactic context can also play a significant role in…