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 ...

This graphic illustrates the vowel space area from a single talker. Each peak corresponds to different vowel nuclei, and as speech increases in clarity, on average, the total area enclosed by these ...