1b) What vowel sound matches the position of the tongue?
2) To what extend does the cardinal vowel system make a statement not only on the position of the tongue, but also on the lip position (spread – neutral - rounded)?
The vowel chart contains three lines which indicate the different horizontal positions (front, central, back) of the tongue on the vertical levels (high, mid, low). The sounds that are right to these vertical lines are produced with lip rounding, while the sounds that are left to them do not require lip rounding. The latter are produced with spread or neutral ( unrounded) lips.