The effects of language contact extend well beyond the borrowing of lexical items, and can include morphosyntactic, phonetic, and phonological changes over time (Thomason & Kaufman 1998). One especially common structural outcome of long-term contact is phonetic transfer (Matras 2009: 222). The Welsh spoken in Patagonia, which has been in close contact with Spanish for the past 150 years, offers one example of this phenomenon: Jones (1984) observes that younger speakers of Patagonian Welsh may be developing unaspirated voiceless stops /ptk/ as a result of Spanish contact. This paper measures the voice-onset time (VOT) of the Welsh voiceless stops /ptk/ using contemporary conversational speech data from both Patagonia and Wales, for speakers in three age groups (0–29, 30–59, and 60+ years), to examine the effects of Spanish contact on Patagonian Welsh. Results indicate that the tendencies seen in Jones (1984) have held true, and in fact have generalized to become a feature of Patagonian Welsh for speakers of all ages: Patagonian speakers produce the Welsh stops /ptk/ with significantly shorter VOT than speakers from Wales. These results shed light on an important distinguishing phonetic feature of this understudied variety of Welsh, as well as the dynamics of language contact in action.

This study is concerned with the Bavarian German dialect feature of complementary length in vowel plus consonant sequences according to which tense (long) vowels always precede lenis stops (short closure) and lax (short) vowels always precede fortis stops (long closure). The study investigates whether a vowel length contrast is developing before fortis stops due to dialect leveling. We measured vowel and consonant duration in trochaic words differing only in vowel length which were read by 40 older and younger Bavarian and Saxon (control group) German speakers. Older Bavarians distinguished tense and lax vowels by means of vowel to vowel plus consonant ratios that indicate an inverse timing pattern. Saxons and younger Bavarians signal the tense–lax distinction independently of the following stop length. A perception test showed that this sound change in progress also affects perception. We argue for a contact-induced change which is triggered by external as opposed to internal factors.

Bininj Kunwok (BKw), a language spoken in Northern Australia, restricts the degree of anticipatory nasalization, as suggested by previous aerodynamic and acoustic analyses (Butcher 1999). The current study uses aerodynamic measurements of speech to investigate patterns of nasalization and nasal articulation in Bininj Kunwok to compare with Australian languages more generally. The role of nasal coarticulation in ensuring language compre-hensibility a key question in phonetics research today is explored. Nasal aerodynamics is measured in intervocalic, word-medial nasals in the speech of five female speakers of BKw and data are analyzed using Smoothing Spline Analysis of Variance (SSANOVA) and Functional Data Analysis averaging techniques. Results show that in a VNV sequence there is very little anticipatory vowel nasalization with no restriction on carryover nasalization for a following vowel. The maximum peak nasal flow is delayed until the oral release of a nasal for coronal articulations, indicating a delayed velum opening gesture. Patterns of anticipatory nasalization appears similar to nasal airflow in French non-nasalized vowels in oral vowel plus nasal environments (Delvaux et al. 2008). Findings show that Bininj Kunwok speakers use language specific strategies in order to limit anticipatory nasalization, enhancing place of articulation cues at a site of intonational prominence which also is also the location of the majority of place of articulation contrasts within the language. Patterns of airflow suggest enhancement and coarticulatory resistance in prosodically prominent VN and VNC sequences which we interpret as evidence of speakers maintaining a phonological contrast to enhance place of articulation cues.

While Mixtec languages are well-known for their tonal systems, there remains relatively little work focusing on their consonant inventories. This paper provides an in-depth phonetic description of the consonant system of the Yoloxóchitl Mixtec language (Oto-Manguean, ISO 639-3 code xty), a Guerrero Mixtec variety. The language possesses a number of contrasts common among Mixtec languages, such as voiceless unaspirated stops, prenasalized stops, and a strong tendency for words to conform to a minimally bimoraic structure. Using a controlled set of data, we focus on how word size and word position influence the acoustic properties of different consonant types. We examine closure duration, VOT, and formant transitions with the stop series, spectral moments with the fricative series, the timing between oral and nasal closure with the prenasalized stop series, and both formant transitions and qualitative variability with the glide series. The general effect of word size is discussed in relation to work on polysyllabic shortening (Turk & Shattuck-Hufnagel 2000) and demonstrates the importance of prosodic templates in Mixtec languages (Macken & Salmons 1997). The prenasalized stop data provides evidence that such stops are best analyzed as allophones of nasal consonants preceding oral vowels (as per Marlett 1992) and not as hypervoiced variants of voiced stops (as per Iverson & Salmons 1996).

Previous research has shown that pre-aspiration can be a phonemic and a variable linguistic feature susceptible to linguistic and extra-linguistic influences. In the case of Welsh, previous exploratory work has found the presence of pre-aspiration (Ball 1984, Morris 2010, Spooner 2016, Iosad forthcoming), but the phonetic and phonological properties of this feature and its sociophonetic patterning in the language are not known. This article presents analyses of the variety of Welsh spoken in Bethesda (Gwynedd). It reports the frequency of occurrence of pre-aspiration, its duration, and noisiness. As well as describing pre-aspiration, it attempts to ascertain the extent to which this feature is influenced by linguistic and extra-linguistic factors. Wordlist data were analysed from 16 Welsh–English bilinguals from Bethesda (Gwynedd, North Wales). Speakers were aged between 16 and 18 years old and the sample was stratified by speaker sex and home language (either Welsh or English). The results indicate that pre-aspiration is frequent in both fortis and lenis plosives (the latter of which are typically devoiced in Welsh). In addition to a number of linguistic influences on its production, both speaker sex and home language were found to be significant predictors of variation for some measures. The results are discussed with reference to previous studies of pre-aspiration in other languages and work on phonetic variation in Welsh–English bilingual speech.

This study reports on non-durational acoustic correlates of typologically rare word-initial consonant gemination in Kelantan Malay (KM) by focusing on two acoustic parameters – amplitude and f0. Given the unusual characteristics of the word-initial consonant contrast and its potential maintenance in domain-initial environments, this study sets to examine the extent to which amplitude and f0 can potentially characterise such a contrast in KM in addition to the cross-linguistically established acoustic correlate of closure duration. The production data involved elicited materials from sixteen KM native speakers. RMS and f0 values were measured at the start of the vowel following stops and sonorants produced in isolation (i.e. utterance-initial position) and in a carrier sentence (i.e. utterance-medial position). Results indicate that the consonant contrast is reflected in systematic differences in (i) vowel onset amplitude and f0 following the target consonant and (ii) the ratios of amplitude and f0 across two syllables of disyllabic words. There are also effects of utterance position, manner of articulation and voicing type on the magnitude of contrast between singletons and geminates with utterance-initial voiceless stops generally showing the greatest magnitude difference. The conclusion is drawn that the KM word-initial singleton/geminate consonant contrast can be associated with a set of acoustic parameters alongside closure duration.

IPAtranscriptor is a tool for creating narrow phonetic transcriptions. As it connects to the computer's default text-to-speech engine on demand, the program can be used not only by sighted but also by partially sighted and blind individuals. Sighted users can choose whether they prefer the mouse or the keyboard as their input device. In contrast to other programs, the full set of symbols and diacritics of the International Phonetic Alphabet (IPA) is implemented and users can produce very narrow phonetic transcriptions as they can insert up to three diacritics above and three diacritics below each IPA symbol to modify it. Furthermore, the program can facilitate the collaboration between blind and sighted phoneticians (or students of linguistics in general) since they can easily exchange their phonetic transcriptions. A conversion of the transcriptions is not necessary as all transcribers can use the same system regardless of their visual abilities. IPAtranscriptor is freely available online and is believed to be the first audio-based program for narrow phonetic transcription that can be used by blind and sighted phoneticians.

The paper presents a production experiment investigating the phonetic parameters speakers employ to differentiate Yes–No questions from string-identical statements in Akan, a West-African two-tone Kwa language. Results show that, in comparison to the statement, speakers use a higher pitch register throughout the utterance as a global parameter, and falling f0, longer duration and higher intensity as local parameters on the final syllable of the Yes–No question. Further, two perception experiments (forced-choice identification and gating) investigate the perceptual relevance of the global parameter and the local final parameters. Results show that listeners cannot assess the higher pitch register information to identify the mode of a sentence early on. Rather, identification takes place when the local phonetic parameters on the final vowel are available. The findings point to the superiority of language-specific cues in sentence mode perception. It is suggested that Akan uses a low boundary tone that associates with the right edge of the intonation phrase (L%) in Yes–No questions. The results are discussed from the point of view of question intonation typology in African languages. It is argued that a classification along the lines of functionally relevant cues is preferable to an impressionistic analysis.

This paper investigates the articulation of approximant /ɹ/ in New Zealand English (NZE), and tests whether the patterns documented for rhotic varieties of English hold in a non-rhotic dialect. Midsagittal ultrasound data for 62 speakers producing 13 tokens of /ɹ/ in various phonetic environments were categorized according to the taxonomy by Delattre & Freeman (1968), and semi-automatically traced and quantified using the AAA software (Articulate Instruments Ltd. 2012) and a Modified Curvature Index (MCI; Dawson, Tiede & Whalen 2016). Twenty-five NZE speakers produced tip-down /ɹ/ exclusively, 12 tip-up /ɹ/ exclusively, and 25 produced both, partially depending on context. Those speakers who produced both variants used the most tip-down /ɹ/ in front vowel contexts, the most tip-up /ɹ/ in back vowel contexts, and varying rates in low central vowel contexts. The NZE speakers produced tip-up /ɹ/ most often in word-initial position, followed by intervocalic, then coronal, and least often in velar contexts. The results indicate that the allophonic variation patterns of /ɹ/ in NZE are similar to those of American English (Mielke, Baker & Archangeli 2010, 2016). We show that MCI values can be used to facilitate /ɹ/ gesture classification; linear mixed-effects models fit on the MCI values of manually categorized tongue contours show significant differences between all but two of Delattre & Freeman's (1968) tongue types. Overall, the results support theories of modular speech motor control with articulation strategies evolving from local rather than global optimization processes, and a mechanical model of rhotic variation (see Stavness et al. 2012).

Sardinian is a Romance language spoken almost exclusively on the island of Sardinia, an autonomous region of Italy. Sardinian and Italian are not mutually intelligible; there is considerable structural distance between the two linguistic systems, at all linguistic levels (Loporcaro 2009: 162–171).

A multi-speaker acoustic study on citation tones in Kaifeng Mandarin, referred to as LH, HL, H and L, shows that L is realized as three different subtypes by different speakers, i.e. dipping, falling and falling with lengthening, while generally being longer than the other three tones and frequently spoken with creaky voice in part of the vowel. This inter-speaker variation is reflected in the different transcriptions of Kaifeng L that have been given in the literature. We argue that a L-tone is intrinsically less salient than a H-tone, due to a lack of phonetic space in the low pitch range as well as to a potential ambiguity between contextual low pitch around f0 peaks and low pitch due to L-tones, and thus more likely to be enhanced.

Sasak is a Malayo-Sumbawan (Adelaar 2005) language spoken as a primary language in Lombok, Indonesia (see the map in Figure 1). It is estimated to be spoken by 2 million (Clynes 1995) or 2.5 million (Marli 2015) people. Sasak is reported to have four (Jacq 1998) or five (Austin 2003) major dialects, to which Austin (2003) gives informal names based on the pronunciation of the deictic words for ‘like this’ and ‘like that’: Ngenó-Ngené (central northeast, central east, and central west coasts of Lombok), Menó-Mené (central Lombok), Ngotó-Ngeté (northeastern Lombok), Ngenó-Mené, also known as Kutó-Kuté (north Lombok), and Meriaq-Meriku (south central Lombok). The dialects with the broadest geographical distribution are Menó-Mené and Ngenó-Ngené.

Madurese (bhâsa Madhurâ) is a Malayo-Polynesian language spoken primarily on the island of Madura and a number of regions in East Java, Indonesia. Its further subgrouping has remained a matter of some dispute. Early work placed Madurese in a Malayo-Javanic subgroup containing Javanese, Sundanese, and Malay (Dyen 1963). Glottolog and Ethnologue use the more recent ‘Malayo-Sumbawan’ classification (Adelaar 2005a), which puts Malayic, Chamic, and the Balinese-Sasak-Sumbawa group into one branch with Madurese and Sundanese in two other branches, to the exclusion of Javanese. Robert Blust, rejecting the Malayo-Sumbawan hypothesis, tentatively places Madurese in a Malayo-Chamic subgroup (Blust 2009), but also suggests (Blust 2010) that, as Madurese is lexically similar to Malay but phonologically and morphologically quite different, it may once have subgrouped with Javanese and later underwent heavy relexicalization due to language contact (see also discussion in Kluge 2017: 3).

Seenku (ISO 639-3: sos) is a Western Mande language of the Samogo group, whose other members include languages like Dzùùngoo (Solomiac 2014), Jowulu (Djilla, Eenkhoorn & Eenkhoorn-Pilon 2004), and Duungooma (Hochstetler 1996), spoken on either side of the Mali-Burkina Faso border. The endonymic language name Seenku [sɛ̃́ː-kû] (also spelled on Ethnologue as Seeku) literally means ‘thing of the Sɛ̃ː ethnicity’, but it is widely known to outsiders as Sembla (variant spelling Sambla), which doubles as an exonym for the ethnicity. Seenku has two primary dialects, Northern and Southern, spoken in villages approximately 40 km west of Bobo-Dioulasso in Burkina Faso (see map in Figure 1). This study focuses on the more populous southern dialect, particularly the variety spoken in and around the large village center of Bouendé (local name [ɡ͡béné-ɡũ̏]), with a population of approximately 12,000 speakers; the Northern dialect, spoken around the village center of Karangasso (local name [təmî]), has a population of approximately 5000 speakers and was the subject of a sketch grammar (Prost 1971). The southern dialect had until recently received little scholarly attention, with the exception of a Master's thesis on the morphophonology at the Université de Ouagadougou (Congo 2013), but is now the subject of the NSF Documenting Endangered Languages grant supporting this research (BCS-1664335). Other published work includes McPherson (2017a, b, c, d).

Tongan (lea fakatonga, ISO 639-3 code ton) is a Polynesian language spoken mainly in Tonga, where it is one of two official languages (with English). There are about 104,000 speakers of the language in Tonga, with nearly 80,000 additional speakers elsewhere (Simons & Fennig 2017). It is most closely related to Niuean, and more distantly related to West Polynesian languages (such as Tokelauan and Samoan) and East Polynesian languages (such as Hawaiian, Māori, and Tahitian). Previous work on the phonetics and phonology of Tongan includes a general grammar (Churchward 1953), a dissertation with a grammatical overview (Taumoefolau 1998), a phonological sketch of the language (Feldman 1978), two dictionaries (Churchward 1959, Tu‘inukuafe 1992), journal and working papers on stress (Taumoefolau 2002, Garellek & White 2015), intonation (Kuo & Vicenik 2012), as well as the ‘definitive accent’ (discussed below) and the phonological status of identical vowel sequences (Poser 1985; Condax 1989; Schütz 2001; Anderson & Otsuka 2003, 2006; Garellek & White 2010; Ahn 2016; Zuraw 2018). This illustration is meant to provide an overview of the phonetic structures of the language, and includes novel acoustic data on its three-way word-initial laryngeal contrasts, which are cross-linguistically rare. The recordings accompanying this illustration come from Veiongo Hehepoto, a native speaker of Tongan currently living in Melbourne, Australia. Ms. Veiongo was born in 1950 on the island of Vava‘u (northern Tonga), but grew up and was educated in the capital city Nuku‘alofa on Tongatapu (see Figure 1). She moved to Vanuatu when she was 16 years old, and when she was 21 moved to Australia where she trained as a nurse. She continues to speak Tongan every day with family members (including children, who were born in Australia) and friends.

The Hmu language is spoken by approximately 1,250,000 people who reside in Qiandongnan Miao and Dong Autonomous Prefecture (黔东南苗族侗族自治州), Guizhou Province (贵州省), the People's Republic of China (Wang & Mao 1995: 3–4; Lewis, Simons & Fenning 2016).

Shawi1 is the language of the indigenous Shawi/Chayahuita people in Northwestern Amazonia, Peru. It belongs to the Kawapanan language family, together with its moribund sister language, Shiwilu. It is spoken by about 21,000 speakers (see Rojas-Berscia 2013) in the provinces of Alto Amazonas and Datem del Marañón in the region of Loreto and in the northern part of the region of San Martín, being one of the most vital languages in the country (see Figure 1).2 Although Shawi groups in the Upper Amazon were contacted by Jesuit missionaries during colonial times, the maintenance of their customs and language is striking. To date, most Shawi children are monolingual and have their first contact with Spanish at school. Yet, due to globalisation and the construction of highways by the Peruvian government, many Shawi villages are progressively westernising. This may result in the imminent loss of their indigenous culture and language.

Of the official languages of South Africa, Afrikaans has the widest geographical, demographic and racial distribution (Webb 2003). According to the latest South African census of 2011 (StatsSA 2012), Afrikaans as first language is spoken by 13.5% of the country's inhabitants, only surpassed in numbers by Zulu (22.7%) and Xhosa (16%). In neighbouring Namibia, 10.4% of the population has Afrikaans as their first language. A noteworthy number of recent emigrants to United Kingdom, Australia, Europe and North America are likely to be Afrikaans speakers as well.1 A handful of elderly persons in Patagonia still speak Afrikaans; they are descendants of some 600 Afrikaans speakers who settled in Patagonia at the beginning of the 20th century (Du Toit 1995, Coetzee et al. 2018).

Xiangxiang ([ɕjaŋ44 ɕjaŋ44]) is a Chinese dialect spoken by a population of 885,552 in the urban area of Xiangxiang (CN-430381), a city located in the centre of Hunan Province, China (Jiang 2008: 6). It belongs to Xiang ([ɕjaŋ44], ISO: 639-3: [hsn]), which is one of the ten major dialect groups of Chinese (LAC 2012).1 Xiang has two main subgroups, New Xiang and Old Xiang (Zhou & You 1985, Yuan 2001), and Xiangxiang is often cited as a representative dialect of Old Xiang (H. Bao 2001, Jiang 2008).2 Rather than denoting different historical stages, ‘old’ and ‘new’ reflect more and less conservative varieties among contemporary Xiang dialect speakers. Some impressionistic descriptions of the sounds and tones of Xiangxiang dialect will be found in Chao & Wu (1974), S. Zeng (2001) and Jiang (2008).