In this case the first formant unit CF1 is very active for /u/, the interval corresponding to /i/ shows a pattern with larger activity in the extremes of the interval than in the middle. This seems to be due to the tuning of the marginal density function of /i/ regarding the first formant, which is lower for this speaker than the values given in Table 1. The second formant unit CF2 is active in the intervals corresponding to /e/ and /i/. The selected pattern is the one corresponding to /i/ as expected.