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Studying Vowel Variation in French-Algerian Arabic Code-switched Speech
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In: Interspeech 2018 ; https://halshs.archives-ouvertes.fr/halshs-01969143 ; Interspeech 2018, Sep 2018, Hyderabad,, India. ⟨10.21437/interspeech.2018-2381⟩ (2018)
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Studying Vowel Variation in French-Algerian Arabic Code-switched Speech
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In: Interspeech 2018 ; https://halshs.archives-ouvertes.fr/halshs-02130906 ; Interspeech 2018, Sep 2018, Hyderabad, India. pp.2753-2757, ⟨10.21437/Interspeech.2018-2381⟩ (2018)
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Studying Vowel Variation in French-Algerian Arabic Code-switched Speech
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In: Annual Conference of the International Speech Communication Association ; https://hal.archives-ouvertes.fr/hal-02387386 ; Annual Conference of the International Speech Communication Association, ISCA, Sep 2018, Hyderabad, India (2018)
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Abstract:
International audience ; Algerian Arabic-French bilinguals show phonetic variationwith respect to vowel timber in both their languages. Ourstudy aims to automatically identify vowel variants frequentlyproduced by such bilinguals. To that end, the speech corpusFACST, containing French and Algerian Arabic code-switchedspeech, was analyzed. A second corpus with native Frenchspeakers (NCCFr) was used to provide a reference baselineand to compare vowel variants across the two speaker groups.Three experiments were carried out: first, the French speechof both corpora was aligned with a French acoustic model in-cluding parallel nearest-neighbor vowel variants in its pronun-ciation dictionary. Second, the Arabic speech was aligned us-ing the same acoustic model with parallel vowel variants in itsdictionary. Finally, we tested whether peripheral vowels in Al-gerian Arabic-French bilinguals are more often centralized thanin French native speech by allowing schwa as a competing vari-ant. The results show that French natives and Algerian Arabic-French bilinguals globally have a comparable amount of vowelvariation in French. However, French natives have stable highvowels whereas bilinguals tend to produce stable low and backvowels. In the centralization experiment, Algerian bilingualsfavor the centralization of mid, open and back vowels.
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Keyword:
[INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL]; [INFO]Computer Science [cs]; Algerian Arabic; Code-switched speech; French; Vowel variation
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URL: https://hal.archives-ouvertes.fr/hal-02387386
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