OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Pronunciation assessment of Japanese learners of French with GOP scores and phonetic information

Laborde, Vincent and Pellegrini, Thomas and Fontan, Lionel and Mauclair, Julie and Sahraoui, Halima and Farinas, Jérome Pronunciation assessment of Japanese learners of French with GOP scores and phonetic information. (2016) In: Annual conference Interspeech (INTERSPEECH 2016), 8 September 2016 - 12 September 2016 (San Francisco, CA, United States).

(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: http://dx.doi.org/10.21437/Interspeech.2016-513


In this paper, we report automatic pronunciation assessment experiments at phone-level on a read speech corpus in French, collected from 23 Japanese speakers learning French as a foreign language. We compare the standard approach based on Goodness Of Pronunciation (GOP) scores and phone-specific score thresholds to the use of logistic regressions (LR) models. French native speech corpus, in which artificial pronunciation errors were introduced, was used as training set. Two typical errors of Japanese speakers were considered: /ö/ and /v/ of ten mispronounced as [l] and [b], respectively. The LR classifier achieved a 64.4% accuracy similar to the 63.8% accuracy of the baseline threshold method, when using GOP scores and the expected phone identity as input features only. A significant performance gain of 20.8% relative was obtained by adding phonetic and phonological features as input to the LR model, leading to a 77.1% accuracy. This LR model also outperformed another baseline approach based on linear discriminant models trained on raw f-BANK coefficient features.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to International Society for Computers and their Applications (ISCA). The original PDF is available at: http://www.isca-speech.org/archive/Interspeech_2016/pdfs/0513.PDF
HAL Id:hal-01474896
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université Paris Descartes - Paris V (FRANCE)
Laboratory name:
Deposited On:31 Jan 2017 15:37

Repository Staff Only: item control page