Is /ɑ/ a back or central vowel in GA English?
/ɑ/ is called open back unrounded vowel, however it appears in the center bottom of the vowel trapezoid of General American English at https://en.m.wikipedia.org/wiki/General_American#Phonology . Why? If GA English indeed uses that bottom central vowel, why not represent it with /ä/ (open central unrounded vowel)? The cot-caught merger is out of the scope of this … Read more