Captaina: Integrated pronunciation practice and data collection portal

Aku Rouhe, Reima Karhila, Aija Elg, Minnaleena Toivola, Mayank Khandelwal, Peter Smit, Anna Riikka Smolander, Mikko Kurimo

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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We demonstrate Captaina, computer assisted pronunciation training portal. It is aimed at university students, who read passages aloud and receive automatic feedback based on speech recognition and phoneme classification. Later their teacher can provide more accurate feedback and comments through the portal. The system enables better independent practice. It also acts as a data collection method. We aim to gather both good quality second language speech data with segmentations, and the teacher given evaluations of pronunciation.

Original languageEnglish
Title of host publicationProceedings of Interspeech
PublisherInternational Speech Communication Association
Number of pages2
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventInterspeech - Hyderabad International Convention Centre, Hyderabad, India
Duration: 2 Sep 20186 Sep 2018

Publication series

NameProceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH
PublisherInternational Speech Communication Association
ISSN (Print)2308-457X


Internet address


  • Automatic pronuciation rating
  • Data collection

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