In the extreme northeastern Argentine province of Misiones, vernacular Portuguese is the primary language of many rural communities, in bilingual contact with Spanish. The present study examines data from Misiones Portuguese and Spanish for evidence of morphosyntactic convergence in the absence of formal schooling in either language or sociolinguistic pressures to produce canonical varieties. Data from a corpus of vernacular Misiones Portuguese and the results of a speeded translation task reveal that even in this sociolinguistically permissive environment bilingual speakers maintain distinct morphosyntactic systems for Portuguese and Spanish (exemplified by nominal plural marking and first-person plural verbal inflection). The data also suggest that bilingual contact alone does not yield the degree of convergence required for the hybrid Portuguese-Spanish morphosyntaxis that has been reported, for example, in northern Uruguay.

This study aims at testing whether there are regional differences in the perception of the labiodental fricative contrast in Dutch. Previous production studies have shown that the devoicing of initial labiodental fricatives is a change in progress in the Dutch language area. We present the results of a speeded identification task in which fricative stimuli were systematically varied for two phonetic cues, voicing and duration. Listeners (n=100) were regionally stratified, and the regions (k=5) reflect different stages of this sound change in progress. Voicing turned out to be the strongest categorization cue in all regions; duration only played a minor role. Regional differences showed up in the perception of the consonantal contrast that matched regional differences in production reported in previous studies. The addition of random slopes in the mixed model regression showed the importance of within-regional variation.

Most recent studies on the geographical distribution of acoustic features analyze comparatively few speakers and localities, both of which may be unrepresentative of the diversity found in larger or more spatially fragmented populations. In the present study we introduce a new paradigm that enables the crowdsourcing of acoustic features through smartphone devices. We used Dialäkt Äpp, a free iOS app that allows users to record themselves, to crowdsource audio data. Nearly 3,000 speakers from 452 localities in German-speaking Switzerland provided recordings; we measured articulation rates for these speakers using a metric based on duration intervals between consecutive vowel onsets. Results revealed distinct regional differences in articulation rate between major dialect regions and individual localities. The specification of 452 localities enabled analyses at an unprecedented spatial resolution. Results further revealed a robust effect of gender, with women articulating significantly more slowly than men. Both the geographical patterns and the effect of gender found in this study corroborate similar findings on Swiss German previously reported in a very limited set of localities, thus verifying the validity of the crowdsourcing framework. Given the application of this new framework, a large bulk of the discussion is devoted to discussing methodological caveats.