Sound acquisition

[Claire Martinot]

Dear all,

A colleague of mine, in diachronic Linguistics, asks me the following
question about sound acquisition :
Is it true that the acquisition of /y/ by French children implies that of
both /i/ ans /u/ ? If your are aware or recent experimental research, could
you please let me know some references therin ?
Same question concerning the acquisition of /w/ vis-a-vis /i/ and /u/ by
Korean children.
PS. /y/ : /front rounded vowel/ ; /w/ : /back unrounded vowel/
Thanks in advance for your answer
Claire Martinot
Université René Descartes, Paris 5