Aims and objectives:In this study, we investigated crosslinguistic influence in the phonetic systems of simultaneous bilinguals (2L1s) during adulthood. Methodology: Specifically, we analyzed the voice onset time (VOT) of the voiceless stop /k/ in the spontaneous speech of 14 German-French bilinguals who grew up in France or Germany. We looked at both languages, first comparing the groups, second comparing their VOT to their global accent. Data and analysis: The material consisted of interviews, lasting for about half an hour. Findings/conclusions: Most 2L1s showed distinct VOT-ranges in their two languages, even if they were perceived to have a foreign accent in the minority language of their childhood environment. We conclude that the phonetic systems of 2L1s remain separate and stable throughout the lifespan. However, the 2L1s from France had significantly shorter VOTs in German than the 2L1s from Germany, and their speech was overall more accented. These findings are discussed with respect to the role of intra-and extra-linguistic factors. Originality: Our study adds a new perspective to existing VOT studies of bilinguals by using naturalistic speech data and by comparing two groups of 2L1s who have the same language combination but grew up in different countries, which allows us to evaluate the impact of their childhood environment on VOT development. Significance/implications: Language exposure during childhood seems to be beneficial for pronunciation during adulthood.

This study investigates the adult grammars of French simultaneous bilingual speakers (2L1s) whose other language is German. Apart from providing an example of French as heritage language in Europe, the goals of this paper are (i) to compare the acquisition of French in a minority and majority language context, (ii) to identify the relative vulnerability of individual domains, and (iii) to investigate whether 2L1s are vulnerable to language attrition when moving to their heritage country during adulthood. We include two groups of German-French 2L1s: One group grew up predominantly in France, but moved to Germany during adulthood; the other group grew up predominantly in Germany and stayed there. Performance is compared in different domains, including adjective placement, gender marking, articles, prepositions, foreign accent and voice onset time. Results indicate that differences between the two groups are minimal in morpho-syntax, but more prominent in pronunciation.

The study reported in this paper examines foreign accent (FA) in adult simultaneous bilinguals (2L1ers). Specifically, we investigate how accent is affected if a first language is acquired as a minority (heritage) language as compared to a majority (dominant) language. We compare the perceived FA in both languages of 38 adult 2L1ers (German-French and German-Italian) to that of monolingual native speakers (L1ers) and late second language learners (L2ers). Naturalistic speech samples are judged by 84 native speakers of the respective languages. Results indicate that the majority language is always spoken without an FA, while results for the heritage language fall between those of L1 and L2 speakers. For the heritage language, we further show that a native accent correlates with length of residence in the heritage country during childhood but not during adulthood. Furthermore, raters have comparatively more difficulties when judging the accent of a heritage speaker. The results of this study add to our current understanding of what factors shape the phonology of a heritage language system in adulthood.