Journal of Second Language Pronunciation - Volume 5, Issue 3, 2019

Abstract

This study investigated whether second language (L2) speakers are aware of and can manipulate aspects of their speech contributing to comprehensibility. Forty Mandarin speakers of L2 English performed two versions of the same oral task. Before the second task, half of the speakers were asked to make their speech as easy for the interlocutor to understand as possible, while the other half received no additional prompt. Speakers self-assessed comprehensibility after each task and were interviewed about how they improved their comprehensibility. Native-speaking listeners evaluated speaker performances for five dimensions, rating speech similarly across groups and tasks. Overall, participants did not become more comprehensible from task 1 to task 2, whether prompted or not, nor did speakers’ self-assessments become more in line with raters’, indicating speakers may not be aware of their own comprehensibility. However, speakers who did demonstrate greater improvement in comprehensibility received higher ratings of flow, and speakers’ self-ratings of comprehensibility were aligned with listeners’ assessments only in the second task. When discussing comprehensibility, speakers commented more on task content than linguistic dimensions. Results highlight the roles of task repetition and self-assessment in speakers’ awareness of comprehensibility.

Abstract

This study compared children’s and adults’ L2 perception and production in the first hours of exposure to a foreign language. A total of 10 German children and 19 German adults performed a phoneme discrimination task and a sentence imitation task in Polish at two testing times. Exposed to a comparable input, the adult learners were found to perceive Polish sibilant contrasts more accurately than their child counterparts and to maintain this advantage over a two-week-long instruction. However, the two groups did not differ in their developing ability to produce the tested sibilants. A great deal of inter- and intra-individual differences in both learner groups was also attested. Our findings suggest that young L2 instructed learners are not necessarily better and/or faster perceivers and producers of novel language sounds than adult L2 instructed learners, who are able to discriminate a range of novel sibilant pairs even after very limited L2 exposure.

Abstract

We present a study of the development of L2 stop VOT (voice onset time) in lower-level English-speaking learners of Spanish over the course of a college semester. Participants were recorded six times in two-week intervals. Halfway through the semester, students received a brief pronunciation training session with practice and feedback. Overall, the learners did not lower their L2 VOTs in the first half of the study, before pronunciation training. Following training, however, they lowered their mean VOTs for Spanish voiceless stops significantly. A similar effect was not found for their mean VOTs of Spanish voiced stops, in line with prior work suggesting that prevoicing may be harder to acquire. Yet careful examination suggests that learners are increasing the frequency with which they use prevoicing in Spanish, suggesting this metric might inform future work on L2 Spanish pronunciation development. This work has implications for teaching and research in second language pronunciation.

Abstract

Reduced vowels between obstruents and rhotics are durationally variable and phonologically invisible in Spanish, e.g. p^ərado ‘field’ as /pɾ/. The present study compares L1-Spanish speakers, English monolinguals, and L2-Spanish learners’ perceptual boundaries for reduced vowels in Spanish. A native speaker produced 70 Spanish nonce words with word-initial obstruent + vowel + flap sequences, and the duration of each vowel was manipulated from 100% to 75%, 50%, and 25% of its original duration. To determine whether these groups perceive variably reduced vowels as phonologically visible, 78 listeners counted the number of syllables perceived in 280 target audio files. Linear regression models fitted to 21,436 responses indicate that English monolinguals apply an L1 perceptual strategy, but L2-Spanish learners have shifted their perceptual boundaries. The study concludes that the perception of highly variable acoustic information becomes more native-like with greater L2 proficiency, while age of acquisition is less predictive of native-like perception.

This article reviews English-Medium Instruction and Pronunciation: Exposure and Skills Development