Professor William Labov, a University of Pennsylvania linguist and author of the new book Atlas of North American English Phonetics, Phonology and Sound Change, says there is a shift of vowel sounds ...

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Does [a:] as in 'baa' sound more green or more red? And is [i:] as in 'beet' light or dark in color? Even though we perceive speech and color are perceived with different sensory organs, nearly ...