Researchers found that the motion and configuration of a speaker's lips are key components of the information people gather when distinguishing vowels in speech. For all talkers, except perhaps the ...

The great vowel shift did not involve the shortening or the forward movement of vowels, as Michael Erard says (29 March, p 28). Only the long vowels shifted – upwards – or became diphthongs (two ...

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 ...