Despite the current popularity of rhythm metrics, there has been relatively little work aimed at establishing their validity or reliability, important characteristics of any empirical measure. The current paper focuses on the stability, or temporal reliability, of rhythm metrics by establishing if they give consistent results for the same speakers, in the same task, on successive occasions. Four speakers of Southern British English were recorded reading ‘The North Wind and the Sun’ (NWS) passage on three consecutive days. Results indicated that some measures correlate more highly across time than others, and the choice of a measure that is both reliable and valid is discussed. It is suggested that the metric that best fits these criteria is formulated in terms of the proportion of vowels within an utterance (%V).

This paper provides a detailed phonetic, synchronic description of the oral vowels of Upper Tanana, an Athabascan language spoken in eastern interior Alaska and the western Yukon Territory. Upper Tanana has, depending on the dialect, six or seven oral monophthongs that can be modified for (low) tone, nasalization, and length. Previous accounts are auditory. They disagree regarding the articulation of two of the vowels (which we represent as /ɘ/ and /ʌ/), and raise the question of whether ‘length’ indicates a quantity or a quality distinction. In contrast to earlier accounts, we provide acoustic measurements of F1, F2, and the duration of the vowels of two Alaskan dialects of Upper Tanana: Northway and Tetlin. We find that the phonetic realization of one of the vowels is quite different from the earlier auditory descriptions. For the other vowels and for the quantity distinction, our findings support earlier descriptions while supplying new details. Several co-articulation effects, previously undescribed, are also identified.

Theoretical and descriptive work on Spanish phonetics and phonology has been largely based on Peninsular varieties. This study uses electropalatography (EPG) to investigate articulatory characteristics of coronal consonant contrasts in Argentine and Cuban Spanish. Simultaneous EPG and acoustic data were collected from five speakers from Buenos Aires (Argentina) and three speakers from Havana (Cuba) reading sentences with various syllable-initial coronal consonants corresponding to the orthographic 〈t, ch, n, ñ, s, z, ll, y, l, r〉. As a control, the same data were collected from a single speaker of Peninsular Spanish from Madrid. As expected, the main distinction in both varieties was made between anterior and posterior coronal consonants ((denti-)alveolars vs. (alveolo-)palatals) and reflected the historical merger of the sounds represented by 〈s–z〉 and 〈ll–y〉. At the same time, the results revealed some consistent differences between the two varieties in the location of the constriction and the amount of linguopalatal contact for most coronal consonants. First, the coronal consonants produced by the Argentine speakers were overall considerably more fronted and more constricted than the corresponding consonants produced by the Cuban speakers. Second, 〈ll, y〉 were produced as a fronted alveolo-palatal fricative by the Argentine speakers, and as an approximant by the Cuban speakers. Inter-speaker variation was observed within the varieties in the articulation of some consonants, namely in the Argentine alveolo-palatal fricative and nasal (〈ll, y〉 and 〈ñ〉), and the Cuban alveolo-palatal affricate 〈ch〉.

This paper presents electropalatography (EPG) data from two female speakers of Central Arrernte, a language with six places of articulation, including four coronal contrasts. Both speakers were recorded reading the same list of words using two different types of artificial palate: the standard Reading palate, and the new Articulate palate. Data are presented from seventeen lingual consonants of this language. It is suggested that since the Articulate palate provides more coverage of the velar and dental regions, it may be able to better capture the crucial laminal and apical distinctions that exist in Australian languages such as Central Arrernte. However, caution is advised in interpreting the results from the two different types of artificial palate, since for many consonants, palatograms as well as values for standard analysis measures differ greatly between the two palate types.

Kumzari is an endangered language spoken by about 4000 people in Oman, the United Arab Emirates and Iran. Speakers of the main dialect are found on the Musandam Peninsula of Oman and in small groups in cities along the Gulf coast of the United Arab Emirates. Laraki, a closely related dialect of the language, is spoken across the Strait of Hormuz by a single community on Larak Island in Iran (Lewis 2011, Anonby & Yousefian in press).

Vietnamese, the official language of Vietnam, is spoken natively by over seventy-five million people in Vietnam and greater Southeast Asia as well as by some two million overseas, predominantly in France, Australia, and the United States. The genetic affiliation of Vietnamese has been at times the subject of considerable debate (Diffloth 1992). Scholars such as Tabard (1838) maintained a relation to Chinese, while Maspero (1912), despite noting similarities to Mon-Khmer, argued for an affiliation with Tai. However, at least since the work of Haudricourt (1953), most scholars now agree that Vietnamese and related Vietic languages belong to the Mon-Khmer branch of the Austroasiatic family.