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This paper addresses how input variability in the adult phonological system is mastered in the output of young children in Akan, a Kwa language spoken in Ghana, involving variability between labio-palatalized consonants and front rounded vowels. The high-frequency variant involves a complex consonant which is expected to be mastered late, while the low-frequency variant involves a front rounded vowel which is expected to be mastered relatively early. Late mastery of complex consonants was confirmed. The high-frequency labiopalatalized-consonant variant was absent at age 3 and not yet mastered even at age 5. All children produced the easier-to-produce low-frequency front-rounded-vowel variant, most at far greater frequency than in adult speech, implying that a child's output limitations can affect which variant the child targets for production. Modular theories, in which phonological plans reflect only the characteristics of adult input, fail to account for our results. Non-modular theories are implicated.

Descriptive reports of South Wales English indicate front rounded realizations of thenursevowel (e.g. Wells 1982; Collins & Mees 1990; Mees & Collins 1999; Walters 1999, 2001). However, the specific phonetic properties of the vowel are not depicted uniformly in these studies. In addition, they have relied entirely on auditory descriptions, rather than instrumental measurements. The study presented here is the first to provide a systematic acoustic and articulatory investigation of thenursevowel in South Wales English, and to explore its relationship to realizations of Standard Southern British English /ɜː/ and Standard German /øː/. The results indicate systematic differences between the three vowels, with the South Wales English vowel produced with an open rounded lip posture, yet the acoustic characteristics of an unrounded front vowel. Implications for the notion of ‘front-rounding’ are discussed.

27 pages; International audience; This study presents acoustic and electro-magnetic articulography (EMA) data for the back rounded vowel /u/ in preboundary position in French. Five boundary types are examined: the Utterance, the Intonational phrase, the Accentual phrase, the Word and the Syllable. The three speakers studied produce similar acoustic output, with both F1 and F2 becoming lower before stronger prosodic boundaries. However, the Utterance boundary has a particularly strong effect on F1, which is particularly low before this boundary. To achieve the acoustic output observed, the speakers adopt different articulatory strategies at different prosodic boundaries. The strategies observed before the strongest boundaries are tongue dorsum backing (coupled with either raising or lowering, depending on the speaker); tongue tip retraction; and lip protrusion. Somewhat unexpectedly in light of acoustic considerations, lip constriction is observed to be greater before the weaker prosodic boundaries. This result, considered in conjunction with the tongue data and with the lip protrusion data, leads us to suggest that the French speakers in our study are actively aiming to prevent F2 from becoming too high before the weaker prosodic boundaries. We suggest that a high F2 for /u/ may lead to perceptual confusion with the front rounded vowel /y/, which is also present in the French phoneme inventory. This result echoes our previous results for the front unrounded vowel /i/ (Tabain & Perrier, 2005. Articulation and acoustics of /i/ in preboundary position in French. Journal of Phonetics, 33, 77–100), and suggests that the structure of a language's phoneme inventory has important effects on the articulatory strategies adopted by its speakers.

The present study examined the extent to which perceptual performance by American English (AE) individuals predicted their accuracy in producing second‐language (L2) Parisian French (PF) vowels. Three groups of AE participants (no, moderate, and extensive French‐language experience) participated in two perceptual tasks (categorial discrimination and perceptual assimilation), and a production (repetition) task involving PF /y‐œ‐i‐a‐u/ in bilabial /rabVpa/ and alveolar /radVta/ contexts within a phrase. Results from perception tasks correctly predicted overall production difficulties and effects of language experience and consonantal context in L2 production. Paralleling their perceptual patterns, front rounded vowel productions by AE participants were mislabeled more often as back rounded vowels than as front vowels by native‐French speakers. PF /œ/ was produced more accurately with greater L2 experience. Production accuracy of /y/ was also greater with extensive experience, a finding not expected based on...

It is well‐established that the speech perception abilities of monolingual speakers are highly tuned to the sounds of their native language, and that this language specificity affects how monolingual speakers distinguish the sounds of a non‐native language. The present study addressed how the speech perception skills of simultaneous bilingual speakers, who are native speakers of two languages, may be affected by control of active language mode. We tested monolingual (English and French) and simultaneous bilingual (English/French) adults in an identification and rating task with 42 vowels along a continuum from a high back rounded vowel (/u/) to a high front rounded vowel (/y/) that are both phonemic in French, with only the back vowel represented in English. Bilinguals completed the task in three language modes: English, French, and bilingual. As expected, monolingual speakers demonstrated a language‐specific perceptual pattern for the vowels. Bilingual participants displayed different perceptual patterns...