Analysis of and Feedback on Phonetic Features in Pronunciation Training with a Virtual Teacher

Autor/in	Engwall, Olov
Titel	Analysis of and Feedback on Phonetic Features in Pronunciation Training with a Virtual Teacher
Quelle	In: Computer Assisted Language Learning, 25 (2012) 1, S.37-64 (28 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0958-8221
DOI	10.1080/09588221.2011.582845
Schlagwörter	Feedback (Response); Phonetics; Pronunciation; Computer Assisted Instruction; Intonation; Error Correction; Articulation (Speech); Audiovisual Aids; Second Language Learning; Second Language Instruction; Pronunciation Instruction; Diagnostic Tests; Swedish; Acoustics; Foreign Countries; Computer Simulation; Language Teachers; Sweden + Suchen Sie Ihr Suchwort? Phonetik; Fonetik; Aussprache; Computer based training; Computerunterstützter Unterricht; Korrektur; Audiovisuelles Medium; Zweitsprachenerwerb; Fremdsprachenunterricht; Ausspracheübung; Diagnostic test; Diagnostischer Test; Schwedisch; Akustik; Ausland; Computergrafik; Computersimulation; Language teacher; Sprachunterricht; Schweden
Abstract	Pronunciation errors may be caused by several different deviations from the target, such as voicing, intonation, insertions or deletions of segments, or that the articulators are placed incorrectly. Computer-animated pronunciation teachers could potentially provide important assistance on correcting all these types of deviations, but they have an additional benefit for articulatory errors. By making parts of the face transparent, they can show the correct position and shape of the tongue and provide audiovisual feedback on how to change erroneous articulations. Such a scenario however requires firstly that the learner's current articulation can be estimated with precision and secondly that the learner is able to imitate the articulatory changes suggested in the audiovisual feedback. This article discusses both these aspects, with one experiment on estimating the important articulatory features from a speaker through acoustic-to-articulatory inversion and one user test with a virtual pronunciation teacher, in which the articulatory changes made by seven learners who receive audiovisual feedback are monitored using ultrasound imaging. (Contains 7 figures and 1 table.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10