Electropalatographic data on the frequency of occurrence of assimilatory processes in Catalan C1##C2 sequences, where ## is inserted at the boundary between two consecutive words, reveal that regressive place assimilations operate more often on C1 = /n/ than on C1 = /t/ and are triggered by /ɡ/ rather than by the labials /pbm/ and the voiceless velar stop /k/. Regressive manner assimilations involving nasality and laterality are facilitated by homorganicity between the two consecutive consonants and thus apply more frequently in the clusters /pmtntltʎ/, where C1 and C2 share the same labial or dentoalveolar place of articulation, than in the sequences /pntmkmkn/, where the two consonants are heterorganic; on the other hand, /k/ is less prone than /pt/ to become nasal when followed by /mn/. Place assimilatory processes apply more often for some speakers than for others, and their frequency of occurrence increases whenever C1 is embedded in a frequent or function word. The articulatory motivation for some of these place and manner assimilatory processes, and the extent to which they are complete or partial, are also investigated.

Pitjantjatjara is an Australian language with five stop places of articulation /pt ʈ ck/ in three vowel contexts /aiu/. We present word-medial stop burst data from nine speakers, examining duration, formant, spectral moment and spectral tilt measures. Our particular focus is on the apical contrast (alveolar /t/ vs. retroflex /ʈ/) and on the alveo-palatal /c/ vs. velar /k/ contrast. We observe differences between the palatal and the velar depending on vowel context, and we discuss the possible aerodynamic and acoustic sources for these differences. By contrast, we find that differences between the alveolar and the retroflex are minimal in all three vowel contexts. Unexpectedly, in the context of /i/, various spectral measures suggest that the articulatory release for the retroflex /ʈ/ is in fact more anterior than the release for the alveolar /t/ – we discuss this result in terms of possible articulatory overshoot of the target for /ʈ/ before /i/, and suggest that this result provides additional explanation for the cross-linguistic rarity of retroflexes in an /i/ vowel context.

The Ersu language (/-xò/, 尔苏语 ěrsūyǔ, ISO-639 code ers) is spoken by approximately 16,800 people who reside in five counties in Sichuan Province (四川省) in the People's Republic of China: (i) Ganluo (甘洛县), and (ii) Yuexi (越西县) counties of Liangshan Yi Autonomous Prefecture (凉山彝族自治州), (iii) Shimian (石棉县) and (iv) Hanyuan (汉源县) counties of Ya’an Municipality (雅安市), and (iv) Jiulong (九龙县, Written Tibetan, hereafter WT brgyad zur) county of Ganzi (甘孜, WT dkar mdzes) Tibetan Autonomous Prefecture. Ersu has two closely related sister languages: Lizu (/li55-zu55-hũ55/ or /ly55-zu55-hũ55/, 里汝语 lǐrǔyǔ or 栗苏语 lìsūyǔ) and Duoxu (/do33-ɕu33-na31/, 多续语 duōxùyǔ or 多须语 duōxūyǔ). Lizu is spoken in the neighbouring counties of (i) Muli Tibetan Autonomous County (木里藏族自治县, WT smi li rang skyong rdzong), (ii) Mianning (冕宁县), and (iii) Jiulong; whereas Duoxu is spoken in the county of Mianning, all in Sichuan province (see the map in Figure 1).

Ika is a dialect of the Igbo language spoken in Ika South and Ika North East Local Government Areas of Delta State and the Igbanke area of Edo State in Nigeria. It belongs to the Niger Igbo cluster of dialects (Ikekeonwu 1986) spoken in areas bordering the west of the River Niger; Nwaozuzu (2008) refers to these dialects as West Niger Group of Dialects. A word list of Ika, written by Williamson (1968), was one of the earliest works on Ika and she points out in that work that Ika (and Ukwuani), though regarded as dialects of Igbo, are treated as separate on purely linguistic grounds. Ika phonology differs from that of Standard Igbo and other Igbo dialects and this is why the study of Ika has been of major interest to Igbo linguists in recent years. There have been moves to grant Ika a language status, as seen in the assignment of a unique reference code to Ika: the ISO language code for Ika is ISO 639–3 ikk while that for Igbo is ISO 639–3 ibo. Standard Igbo has the same consonants as Ika though the latter has two consonants, /ʃ/and/ʒ/, which do not exist in the Standard dialect. However, the vocalic system of Ika is largely different from that of Standard and some Igbo dialects which have eight vowels. Ika has a nine-vowel system which includes the schwa, which is a variant of some vowels. Furthermore, it has nine nasal vowels; Standard Igbo and other dialects of Igbo have no nasal vowels. Ika manifests intonation in addition to lexical tone. Standard Igbo and other Igbo dialects do not manifest intonation in the same way as Ika does; that is, they do not express attitudes and emotions through intonation. They manifest only lexical tone. In an earlier study of Northern Igbo dialects, Ikekeonwu (1986) could only discover the existence of upstep in Abakaliki dialect. Okorji (1991) and Egbeji (1999) have studied the intonation of Umuchu, an inland West dialect of Igbo. Their findings, particularly Egbeji’s, show that a declarative sentence can be changed to an interrogative one (repetitive question) by use of intonation. This is a syntactic function which can also be likened to what happens in Standard and most other Igbo dialects where the tone of the pronominal subject changes from high to low in the indication of interrogation. At present, therefore, there appears to be no evidence that attitudes and emotions can be expressed through intonation in Umuchu and other Igbo dialects as is observed in Ika.

Russian (ISO 639-3 rus) is an Indo-European East Slavic language spoken by about 162 million people as their first language and about another 110 million as their second language (Lewis, Simons & Fennig 2013), mainly in the Russian Federation (where it is the native language of about 80% of the population, see Berger 1998, Federal’naja služba gosudarstvennoj statistiki (Federal State Statistics Service) 2012: 228–232) and in the other former republics of the USSR (among which it is co-official in Belarus, Kazakhstan and Kyrgyzstan). Large groups of Russian speakers (so-called heritage speakers) also live in Europe (especially Germany: almost 3 million or 3.5% of the population, Brehmer 2007: 166–167), Israel (about 1 million or 20%, Glöckner 2008) and the United States (850,000 or 0.3%, Shin & Kominski 2010: 6).

Murcian Spanish (MuSp) is a regional variety of Spanish spoken in the Comunidad Autónoma de Murcia in south-eastern Spain. It is commonly heard in the capital city, Murcia, with 450,000 inhabitants, situated in the Segura River plain (Central Zone), and in a number of towns like Cartagena (Coastal Zone), Yecla and Jumilla (Altiplano or High Plateau Zone), Lorca and Águilas (Guadalentín River Zone), and Caravaca and Calasparra (North-western Zone). The overall population of the region amounts to well over 1,100,000 inhabitants (Hernández-Campoy 2003: 621).

In March–April 2015, ten additional members of the new Council of the International Phonetic Association were elected. They are: Plinio Barbosa, Martine Grice, Asher Laufer, Wai-Sum Lee, Kofi Adu Manyah, Alexis Michaud, Jane Stuart-Smith, Marija Tabain, Masaki Taniguchi, and Jacqueline Vaissière. John Ohala, elected in the previous round, has resigned from the Council.