What is it about?
This study investigated the efficacy of ultrasound biofeedback compared to a traditional acoustic input-only method in the L2 production training of English tense-lax vowel contrasts (/i-ɪ/ and /e-ɛ/). The relationship between the degrees of production and perception learning was also examined to explore a potential L2 production-perception link.
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Why is it important?
The results indicate that ultrasound feedback is effective in second-language pronunciation training. However, its efficacy is not significantly greater than the traditional audio-only training.
Perspectives
Using ultrasound feedback in pronunciation training improves both second-language production and perception. However, its efficacy being not greater than the traditional audio-only training indicates that more (both visuals and audios are available in the ultrasound input) is not necessarily better in second-language pronunciation training.
Yung-hsiang Shawn Chang
National Taipei University of Technology
Read the Original
This page is a summary of: Effects of Production Training With Ultrasound Biofeedback on Production and Perception of Second-Language English Tense–Lax Vowel Contrasts, Journal of Speech Language and Hearing Research, May 2023, American Speech-Language-Hearing Association (ASHA), DOI: 10.1044/2023_jslhr-22-00587.
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