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Ten Czech students of the Swedish language participated in the study. Swedish vowel production is difficult for Czech speakers since the languages differ significantly in their vowel systems. The students selected the vowel targets on their own and practiced in two classroom groups, with six students receiving two ultrasound training lessons, followed by one acoustic, and four students receiving two acoustic lessons, followed by one ultrasound. Audio data were collected pre-training, after the two sessions employing the first visual feedback method, and at post-training, allowing measuring Euclidean distance among selected groups of vowels and observing the direction of change within the vowel quadrilateral as a result of practice. Perception tests were performed before and after training, revealing that most learners perceived selected vowels correctly already before the practice. The study showed that both feedback methods can be successfully applied to L2 classroom learning, and both lead to the improvement in the pronunciation of the selected vowels, as well as the Swedish vowel set as a whole. However, ultrasound tongue imaging seems to have an advantage as it resulted in a greater number of improved targets.<\/jats:p>","DOI":"10.1177\/00238309231223736","type":"journal-article","created":{"date-parts":[[2024,5,2]],"date-time":"2024-05-02T02:56:47Z","timestamp":1714618607000},"page":"865-886","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Acoustic and Articulatory Visual Feedback in Classroom L2 Vowel Remediation"],"prefix":"10.1177","volume":"68","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4706-2255","authenticated-orcid":false,"given":"Tanja","family":"Kocjan\u010di\u010d","sequence":"first","affiliation":[{"name":"Institute of Phonetics, Charles University, Czech Republic; Faculty of Education, University of Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5839-313X","authenticated-orcid":false,"given":"Tom\u00e1\u0161","family":"Bo\u0159il","sequence":"additional","affiliation":[{"name":"Institute of Phonetics, Charles University, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susanna","family":"Hofmann","sequence":"additional","affiliation":[{"name":"Scandinavian Studies, Charles University, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,5]]},"reference":[{"key":"e_1_3_3_2_1","unstructured":"Aliaga-Garc\u00eda C. 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