000			01952nam a22001577a 4500
999			_c3261 _d3261
003			OSt
005			20191120143741.0
008			191120b ||||| |||| 00| 0 eng d
040			_cNational Acoustics Laboratories
245			_aEmergence of the corner vowels in the babble produced by infants exposed to Canadian English or Canadian French
520	3		_aThis paperexaminedtheemergenceofcornervowels([i],[u],[æ]and[a]) intheinfantvowelspacesandtheinfluenceof the ambientlanguageonbabbling,inparticular,onthefrequencyofoccurrenceofthecornervowels.Speechsampleswere recorded from51Canadianinfantsfrom8to18monthsofage,respectively,English-learninginfants(n ¼ 24) andFrench- learning infants(n ¼ 27). Theacousticparameters(F1andF2)ofeachcodableinfantvowelwereanalyzedandthenused to plotallthevowelsalongthe diffuse–compact (F2F1) and grave–acute dimensions ([F1+F2]/2).Listenerjudgmentsof vowel categorywereobtainedforthemostextremevowelsineachinfant’svowelspace,i.e.,the10%vowelswithminimum or maximum diffuse–compact and grave–acute values. Thejudgmentsofadultlisteners,bothanglophone(n ¼ 5) and francophone (n ¼ 5), confirmed the peripheral expansion of infant vowel space toward the diffuse and grave corners with age. Furthermore,English-learning infants were judged by both English and French-speaking listener stoproduce a greater frequency of [u ]in the grave corner, incomparison with French-learning infants.The higher proportion o f[u]in English sample was observed throughout the agerange suggesting the influence of ambient language at a young age.
700			_aSusan Rvachew..[et.al]
773	0		_g36 (2008) 564–577 _tJournal of Phonetics
856			_uhttps://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/1009/Emergence%20of%20the%20corner%20vowels%20in%20the%20babble%20produced%20by%20infants%20exposed%20to%20Canadian%20English%20or%20Canadian%20French.pdf?sequence=1&isAllowed=y
942			_2udc _cARTICLE