These "I" and "E" vowels are formed by putting your tongue forward in the mouth. That's why they're called "front" vowels. With these words, your tongue depresses and folds back a bit. So "O", "A" and ...
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 ...