This paper presents impressionistic, electroglottographic and acoustic data exploring the distribution of glottalic and pulmonic airstream in word-final Scottish English obstruents. We explore the relationship between these airstream mechanisms and aspirated or glottalised phonatory settings of individual speakers near this obstruent locus. We address the hypothesis that the tendency for pre-stop glottalisation found in some British English varieties can explain the occurrence of glottalically-released stops. This hypothesis suggests that ejectives would appear as an occasional artefact of mistimed glottalisation. We also investigate whether a glottalic airstream acts as a potential contrast enhancement mechanism, through association with /−voice/ as opposed to /+voice/ stops. We show that glottalisation and aspiration can readily co-occur in the same speaker, and that local phonatory setting (with glottalised or aspirated articulation) can be consistently used as a secondary correlate of obstruent /−voice/, in the context of stops and fricatives respectively. The results show that although glottalisation as a secondary correlate of /−voice/ stops often co-occurs with an ejective release, they are not necessarily bound together. These results argue against a simple epiphenomenal explanation for the appearance of ejective stops in English, while also showing that they are not (yet) a systematic phonological enhancement in this variety.

This paper presents the results of an analysis of the realization of word-final /k/ in a sample of read and casual speech by 28 female pupils from a single-sex Glaswegian high school. Girls differed in age, socioeconomic background, and ethnicity. Ejectives were the most usual variant for /k/ in both speech styles, occurring in the speech of every pupil in our sample. Our narrow auditory analysis revealed a continuum of ejective production, from weak to intense stops. Results from multinomial logistic regression show that ejective production is promoted by phonetic, linguistic and interactional factors: ejectives were used more in read speech, when /k/ occurred in the /-ŋk/ cluster (e.g. tank), and when the relevant word was either at the end of a clause or sentence, or in turn-final position. At the same time, significant interactions between style, and position in turn, and the social factors of age and ethnicity, show that the use of ejectives by these girls is subject to a fine degree of sociolinguistic control, alongside interactional factors. Finally, cautious comparison of these data with recordings made in 1997 suggests that these results may also reflect a sound change in progress, given the very substantial real-time increase in ejective realizations of /k/ in Glasgow over the past fourteen years.

Clicks are known to occur in English conversation, and have traditionally been assumed to convey affective meaning, generally negative. This is indeed the lay interpretation of clicks. In this paper, we build on the work of Wright (2011a, b), who shows that clicks are also used in the management of sequences of talk. Firstly, we consider similarities and differences in the production of clicks and percussives. We consider some distributional properties of clicks in one variety of English. Drawing on a wide range of conversational data from Britain and the USA, we show some of the functions of clicks and percussives in conversation, which include stance-taking and sequence management (projection of a turn constructional unit and word-search), and handling aspects of timing between turns. We also consider some of the visual behaviours that may accompany clicks. The meaning or function of clicks and percussives, it is argued, must be considered in a fuller interactional context.

Phonemic clicks are geographically limited to the African continent, but non-phonemic clicks can also occur in languages spoken elsewhere. One of the phonetic peculiarities of clicks is that they involve negative intraoral pressure. The current study is a survey of instances of negative intraoral pressure excursions in German, a European language which is known to show instances of weak clicks in consonant sequences. Data of spontaneous speech in monologues and read passages from 14 female subjects are analysed. Our data provide evidence that negative pressure occurs frequently in speech production, in particular in pauses (between speech intervals), and in consonant sequences. Of particular interest is that clicks can also occur without an obvious dual closure in the vocal tract. Negative pressure in pauses occurs frequently with clicks (but not exclusively) which are aligned with the pressure minimum. We conclude that these aligned clicks are epiphenomenal and reflect the interaction of the respiratory and the laryngeal systems. In consonant sequences, clicks may be present more often with front–back consonant order than the reverse, but in both cases negative pressure can be found.

This study examines the potential of frequency of clicking (the production of velaric ingressive stops) as a possible basis for discriminating among speakers of English by forensic phoneticians. From analyses of clicking behavior among 100 young male speakers of Standard Southern British English (SSBE) recorded in two interactional tasks, it concludes that, contrary to the view of some forensic practitioners, the majority of speakers – of this language variety at least – do not vary sufficiently from one another in their rates of clicking for this feature to serve as a reliable discriminator. Further, speakers are generally not stable in their clicking behavior, either within or across interactions, and their rates of clicking may vary through accommodation to the click rates of their interlocutors. In view of these findings, it is suggested that the mere comparison of clicking rates across questioned and known recordings is unlikely to be of assistance to forensic phoneticians in the majority of forensic speaker comparison cases.

The Xumi 旭米 language (/EPʃʉ-hĩ ketɕɐ/ ‘the language of the Shu people’) is spoken by approximately 1,800 people who reside along the banks of the Shuiluo River (水洛河) in Shuiluo Township (水洛乡) of Muli Tibetan Autonomous County (木里藏族自治县; smi li rang skyong rdzong in Written Tibetan, hereafter, WT). This county is located in the South-West of Sichuan Province (四川省) in the People's Republic of China (see Figure 1).

This Illustration focuses on the variety of the Xumi language (旭米, /LPʂuketɕɜ/ or /EPʂu-hĩ ketɕɜ/) that is spoken in the upper reaches of the Shuiluo river (水洛河) in Shuiluo Township (水洛乡) (hereafter Upper Xumi). The township is located in Muli Tibetan Autonomous County (木里藏族自治县, smi li rang skyong rdzong in Written Tibetan, hereafter, WT), in the South-West of Sichuan Province (四川省) in the People's Republic of China.

John Baldwin, a former member of the UCL Phonetics Department, died on 14 April 2013, at the age of 77, after a long illness. He was a member of the IPA Council in 1984–1990 and served for a time as Treasurer.